Volker Werner

Research Interests

I am interested in nuclear structure properties which relate to the proton neutron degree of freedom. These are proton-neutron symmetric (pn in phase) and mixed-symmetric (pn not in phase) excitations which are sensitive to the interactions between the two species. These interactions have direct consequences on many other nuclear properties and manifest themselves in collective structures (vibrational, rotational) in the deformation of nuclei and the quantum shape phase transition between nuclei of different deformation. Another domain of pn interactions can be explored in nuclei with similar numbers of protons and neutrons, presenting a testing ground for the principle of isospin. The main method used is gamma-spectroscopy with germanium detectors, in most cases in coincidence with each other, and often with detected outgoing particles, as well.

Publications

Refereed publications in professional journals
Invited Talks at International Conferences
Contributions to International Conferences / published in books and journal special issues
Invited Seminars

Refereed Publications in Professional Journals:

1. P. Boutachkov, N. Benczer-Koller, G.J. Kumbartzki, A. Escuderos, Y.Y. Sharon, L. Zamick, S.J.Q. Robinson, H. Ai, M. Chamberlain, G. Gürdal, A. Heinz, E.A. McCutchan, J. Qian, V. Werner, E. Williams, K. Aleksandrova, C.A. Copos, D.A. Kovacheva, and P. Manchev,
   The sign of the g factor of the 4₁⁺ state in ⁶⁸Zn,
   accepted for publication in Phys. Rev. C (Rapid Communication) (2007).
   

2. S.J. Freeman, J.P. Schiffer, A.C.C. Villari, J.A. Clark, C. Deibel, S. Gros, A. Heinz, D. Hirata, C.L. Jiang, B.P. Kay, A. Parikh, P.D. Parker, J. Qian, K.E. Rehm, X.D. Tang, V. Werner, and C. Wrede,
   Pair correlations in nuclei involved in neutrinoless double beta decay: ⁷⁶Ge and ⁷⁶Se,
   accepted for publication in Phys. Rev. C (2007).
   

3. M. Scheck, P. von Brentano, C. Fransen, U. Kneissl, C. Kohstall, A. Linnemann, D. Mücher, N. Pietralla, H.H. Pitz, C. Scholl, F. Stedile, S. Walter, V. Werner, and S.W. Yates,
   Dipole strength distributions of the stable odd mass N=82 isotones ¹³⁹La and ¹⁴¹Pr,
   accepted for publication in Phys. Rev. C (2007).
   

4. S. Walter, F. Stedile, J.J. Carroll, C. Fransen, G. Friessner, N. Hollmann, H. von Garrel, J. Jolie, O. Karg, F. K&aauml;ppeler, U. Kneissl, C. Kohstall, P. von Neumann-Cosel, A. Linnemann, D. Mücher, N. Pietralla, H.H. Pitz, G. Rusev, M. Scheck, C. Scholl, R. Schwengner, V. Werner, and K. Wisshak,
   Photon scattering experiments on the quasistable, odd-odd mass nucleus ¹⁷⁶Lu,
   accepted for publication in Phys. Rev. C (2007).
   

5. A. Linnemann, C. Fransen, J. Jolie, U. Kneissl, P. Knoch, C. Kohstall, D. Mücher, H.H. Pitz, M. Scheck, C. Scholl, F. Stedile, P. von Brentano, N. Warr, and V. Werner,
   Low-lying J=1 states in ¹⁰⁶Cd,
   Phys. Rev. C 75, 024310 (2007).
   

6. J.N. Orce, C. Fransen, A. Linnemann, C.J. McKay, S.R. Lesher, N. Pietralla, V. Werner, G. Friessner, C. Kohstall, D. Mücher, H.H. Pitz, M. Scheck, C. Scholl, F. Stedile, N. Warr, S. Walter, P. von Brentano, U. Kneissl, M.T. McEllistrem, and S.W. Yates,
   Lifetime measurements in ⁹³Nb from photon and inelastic neutron scattering,
   Phys. Rev. C 75, 014303 (2007).
   

7. J.N. Orce, J.D. Holt, A. Linnemann, C.J. McKay, S.R. Lesher, C. Fransen, J.W. Holt, A. Kumar, N. Warr, V. Werner, J. Jolie, T.T.S. Kuo, M.T. McEllistrem, N. Pietralla, and S.W. Yates,
   Identification of mixed-symmetry states in an odd-mass nearly spherical nucleus,
   Phys. Rev. Lett. 97, 062504 (2006).
   

8. Ch. Hinke, R. Krücken, R.F. Casten, V. Werner, and N.V. Zamfir,
   Evolution of 2_γ⁺ wave functions and gamma-stiffness in well-deformed rare-earth nuclei,
   Eur. Phys. J. A 30, 357 (2006).
   

9. E. Williams, C. Plettner, E.A. McCutchan, H. Levine, N.V. Zamfir, R.B. Cakirli, R.F. Casten, H. Ai, C.W. Beausang, G. Gürdal, A. Heinz, J. Qian, D.A. Meyer, N. Pietralla, and V. Werner,
   Revisiting anomalous B(E2;4₁⁺→ 2₁⁺)/B(E2;2₁⁺→ 0₁⁺) values in ⁹⁸Ru and ¹⁸⁰Pt,
   Phys. Rev. C 74, 024302 (2006).
   

10. H. von Garrel, P. von Bretano, C. Fransen, G. Friessner, N. Hollmann, J. Jolie, F. Käppeler, L. Käubler, U. Kneissl, C. Kohlstall, L. Kostov, A. Linnemann, D. Mücher, N. Pietralla, H.H. Pitz, G. Rusev, M. Scheck, K.D. Schilling, C. Scholl, R. Schwengner, F. Stedile, S. Walter, V. Werner, and K. Wisshak,
    Low-lying E1, M1, and E2 strength distributions in ^{124,126,128,129,130,131,132,134,136}Xe: Systematic photon scattering experiments in the mass region of a nuclear shape or phase transition,
    Phys. Rev. C 73, 054315 (2006).
    

11. G. Rusev, R. Schwengner, F. Dönau, M. Erhard, S. Frauendorf, E. Grosse, A.R. Junghans, L. Käubler, K. Kosev, L.K. Kostov, S. Mallion, K.D. Schilling, A. Wagner, H. von Garrel, U. Kneissl, C. Kohstall, M. Kreutz, H.H. Pitz, M. Scheck, F. Stedile, P. von Brentano, C. Fransen, J. Jolie, A. Linnemann, N. Pietralla, and V. Werner,
    Systematics of magnetic dipole strength in the stable even-mass Mo isotopes,
    Phys. Rev. C 73, 044308 (2006).
    

12. E.A. McCutchan, N.V. Zamfir, R.F. Casten, H. Ai, H. Amro, M. Babilon, D.S. Brenner, G. Gurdal, A. Heinz, R.O. Hughes, D.A. Meyer, C. Plettner, J. Qian, J.J. Ressler, N.J. Thomas, V. Werner, E. Williams, and R. Winkler,
    Lifetime Measurements of Yrast States in ¹⁶²Yb and ¹⁶⁶Hf,
    Phys. Rev. C 73, 034303 (2006).
    

13. D.A. Meyer, C.W. Beausang, J.J. Ressler, H. Ai, H. Amro, M. Babilon, R.F. Casten, C.R. Fitzpatrick, G. Gurdal, A. Heinz, E.A. McCutchan, C. Plettner, J. Qian, N.J. Thomas, V. Werner, E. Williams, N.V. Zamfir, J. Zhang,
    First investigation of excited states in the odd-proton nucleus ²⁰⁹Fr,
    Phys. Rev. C 73, 024307 (2006).
    

14. G. Rusev, R. Schwengner, F. Dönau, S. Frauendorf, L. Käubler, L.K. Kostov, S. Mallion, K.D. Schilling, A. Wagner, E. Grosse, H. von Garrel, U. Kneissl, C. Kohstall, M. Kreutz, H.H. Pitz, M. Scheck, F. Stedile, P. von Brentano, J. Jolie, A. Linnemann, N. Pietralla, and V. Werner,
    Decay of 1⁺ States as a New Probe of the Structure of 0⁺ Shape Isomers,
    Phys. Rev. Lett. 95, 062501 (2005).
    

15. V. Werner, C. Scholl, and P. von Brentano,
    Triaxiality and the determination of the cubic shape parameter K₃ from five observables,
    Phys. Rev. C 71, 054314 (2005).
    

16. C. Fransen, V. Werner, D. Bandyopadhyay, N. Boukharouba, S.R. Lesher, M.T. McEllistrem, J. Jolie, N. Pietralla, P. von Brentano, and S.W. Yates,
    Investigation of low-spin states in ⁹²Zr with the (n,n'γ) reaction,
    Phys. Rev. C 71, 054304 (2005).
    

17. C. Kohstall, D. Belic, P. von Brentano, C. Fransen, A. Gade, R.-D. Herzberg, J. Jolie, U. Kneissl, A. Linnemann, A. Nord, N. Pietralla, H.H. Pitz, M. Scheck, F. Stedile, V. Werner, and S.W. Yates,
    Low-lying dipole excitations in vibrational nuclei: The Cd isotopic chain studied in photon scattering experiments,
    Phys. Rev. C 72, 034302 (2005).
    

18. D. Bandyopadhyay, N. Warr, C. Fransen, N. Boukharouba, V. Werner, S.W. Yates, J.L. Weil, and M.T. McEllistrem,
    Three-phonon excitations in ¹²⁴Sn,
    Nucl. Phys. A 747, 206 (2005).
    

19. T.C. Li, N. Pietralla, C. Fransen, H. von Garrel, U. Kneissl, C. Kohstall, A. Linnemann, H.H. Pitz, G. Rainovski, A. Richter, M. Scheck, F. Stedile, P. von Brentano, P. von Neumann-Cosel, and V. Werner,
    One-phonon 2⁺_1,ms mixed-symmetry state of ¹⁴⁸Sm observed in nuclear resonance fluorescence,
    Phys. Rev. C 71, 044318 (2005).
    

20. P. von Brentano, V. Werner, R.F. Casten, C. Scholl, E.A. McCutchan, R. Krücken, and J. Jolie,
    Alternative Interpretation of Sharply Rising E0 Strengths in Transitional Regions,
    Phys. Rev. Lett. 93, 152502 (2004).
    

21. C. Fransen, N. Pietralla, A. Linnemann, V. Werner, and R. Bijker,
    Low-spin γ-ray spectroscopy of the (critical-point?) nucleus ¹²²Ba,
    Phys. Rev. C 69, 014313 (2004).
    

22. A. Gade, N. Pietralla, P. von Brentano, D. Belic, C. Fransen, U. Kneissl, C. Kohstall, A. Linnemann, H.H. Pitz, M. Scheck, N.A. Smirnova, F. Stedile, and V. Werner,
    Investigation of dipole excitations in ¹⁴²Ce using resonant photon scattering,
    Phys. Rev. C 69, 054321 (2004).
    

23. M. Scheck, H. von Garrel, N. Tsoneva, D. Belic, P. von Brentano, C. Fransen, A. Gade, J. Jolie, U. Kneissl, C. Kohstall, A. Linnemann, A. Nord, N. Pietralla, H.H. Pitz, F. Stedile, C. Stoyanov, and V. Werner,
    Dipole strength distributions in the stable Ba isotopes ^134-138Ba: A study in the mass region of a nuclear shape transition,
    Phys. Rev. C 70, 044319 (2004).
    

24. C. Fransen, N. Pietralla, A.P. Tonchev, M.W. Ahmed, J. Chen, G. Feldman, U. Kneissl, J. Li, V.N. Litvinenko, B. Perdue, I.V. Pinayev, H.H. Pitz, R. Prior, K. Sabourov, M. Spraker, W. Tornow, H.R. Weller, V. Werner, Y.K. Wu, and S.W. Yates,
    Parity assignments to strong dipole excitations of ⁹²Zr and ⁹⁶Mo,
    Phys. Rev. C 70, 044317 (2004).
    

25. C. Fransen, N. Pietralla, Z. Ammar, D. Bandyopadhyay, N. Boukharouba, P. von Brentano, A. Dewald, J. Gableske, A. Gade, J. Jolie, U. Kneissl, S.R. Lesher, A.F. Lisetskiy, M.T. McEllistrem, M. Merrick, H.H. Pitz, N. Warr, V. Werner, and S.W. Yates,
    Comprehensive studies of low-spin collective excitations in ⁹⁴Mo,
    Phys. Rev. C 67, 024307 (2003).
    

26. A. Gade, D. Belic, P. von Brentano, C. Fransen, H. von Garrel, J. Jolie, U. Kneissl, C. Kohstall, A. Linnemann, H.H. Pitz, M. Scheck, F. Stedile, and V. Werner,
    Dipole excitations in ¹⁰⁸Cd,
    Phys. Rev. C 67, 034304 (2003).
    

27. A. Nord, J. Enders, A.E. de Almeida Pinto, D. Belic, P. von Brentano, C. Fransen, U. Kneissl, C. Kohstall, A. Linnemann, P. von Neumann-Cosel, N. Pietralla, H.H. Pitz, A. Richter, F. Stedile, and V. Werner,
    Low-energy photon scattering experiments of ^151,153Eu, ¹⁶³Dy, and ¹⁶⁵Ho and the systematics of the M1 scissors mode in odd-mass rare-earth nuclei,
    Phys. Rev. C 67, 034307 (2003).
    

28. M. Scheck, D. Belic, P. von Brentano, J.J. Carroll, C. Fransen, A. Gade, H. von Garrel, U. Kneissl, C. Kohstall, A. Linnemann, N. Pietralla, H.H. Pitz, F. Stedile, R. Toman, and V. Werner,
    Photon scattering experiments off ¹⁷⁶Hf and the systematics of low-lying dipole modes in the stable even-even Hf isotopes ^176,178,180Hf,
    Phys. Rev. C 67, 064313 (2003) 064313.
    

29. N. Pietralla, C. Fransen, A. Gade, N.A. Smirnova, P. von Brentano, V. Werner, and S.W. Yates,
    Proton-neutron structure of the effective quadrupole-octupole coupled E1 transition operator,
    Phys. Rev. C 68, 031305 (2003).
    

30. K. Jessen, A. Dewald, J. Eberth, G. Gersch, J. Jolie, N. Pietralla, T. Steinhardt, N. Warr, D. Weißhaar, V. Werner, P. von Brentano, and S.M. Lenzi,
    Investigation of low spin states in ⁴⁸Cr with the MINIBALL γ-ray spectrometer,
    Phys. Rev. C 68, 047302 (2003).
    

31. V. Werner, D. Belic, P. von Brentano, C. Fransen, A. Gade, H. von Garrel, J. Jolie, U. Kneissl, C. Kohstall, A. Linnemann, A.F. Lisetskiy, N. Pietralla, H.H. Pitz, M. Scheck, K.-H. Speidel, F. Stedile, and S.W. Yates,
    Proton-neutron structure of the N=52 nucleus ⁹²Zr,
    Phys. Lett. B 550, 140 (2002).
    

32. V. Werner, P. von Brentano, R.F. Casten, and J. Jolie,
    Singular character of critical points in nuclei,
    Phys. Lett. B 527, 55 (2002).
    

33. J. Jolie, P. Cejnar, R.F. Casten, S. Heinze, A. Linnemann, and V. Werner,
    Triple Point of Nuclear Deformations,
    Phys. Rev. Lett. 89, 182502 (2002).
    

34. L. Käubler, K.D. Schilling, R. Schwengner, F. Dönau, E. Grosse, D. Belic, P. von Brentano, M. Bubner, C. Fransen, M. Grinberg, U. Kneissl, C. Kohstall, A. Linnemann, P. Matschinsky, A. Nord, N. Pietralla, H.H. Pitz, M. Scheck, F. Stedile, and V. Werner,
    Influence of the N=50 neutron core on dipole excitations in ⁸⁷Rb,
    Phys. Rev. C 65, 054315 (2002).
    

35. A. Gade, A. Fitzler, C. Fransen, J. Jolie, S. Kasemann, H. Klein, A. Linnemann, V. Werner, and P. von Brentano,
    Nonyrast states of ¹⁰⁸Cd: Investigation with complementary -spectroscopic methods,
    Phys. Rev. C 66, 034311 (2002).
    

36. J. Bryssinck, L. Govor, F. Bauwens, D. Belic, P. von Brentano, D. De Frenne, C. Fransen, A. Gade, E. Jacobs, U. Kneissl, C. Kohstall, A. Linnemann, A. Nord, N. Pietralla, H.H. Pitz, M. Scheck, F. Stedile, and V. Werner,
    Low-Energy Electromagnetic Excitation Strengths in ¹²¹Sb and ¹²³Sb,
    Phys. Rev. C 65, 024313 (2002).
    

37. V. Werner, P. von Brentano, and R.V. Jolos,
    Simple relations among E2 matrix elements of low-lying states,
    Phys. Lett. B 521, 146 (2001).
    

38. J. Jolie, R.F. Casten, P. von Brentano, and V. Werner,
    Quantum phase transition for gamma-soft nuclei,
    Phys. Rev. Lett. 87, 162501 (2001).
    

39. C. Fransen, N. Pietralla, P. von Brentano, A. Dewald, J. Gableske, A. Gade, A. Lisetskiy, and V. Werner,
    First Observation of a Mixed-Symmetry Two-Q-Phonon 2_2,ms⁺ State in ⁹⁴Mo,
    Phys. Lett. 508B, 219 (2001).
    

40. V. Werner, H. Meise, I. Wiedenhöver, A. Gade, and P. von Brentano,
    Collective bands in the triaxial nucleus ¹²⁴Xe,
    Nucl. Phys. A 693, 451 (2001).
    

41. F. Stedile, E. Fill, D. Belic, P. von Brentano, C. Fransen, A. Gade, U. Kneissl, C. Kohstall, A. Linnemann, P. Matschinsky, A. Nord, N. Pietralla, H.H. Pitz, M. Scheck, and V. Werner,
    Low-Lying Dipole Excitations in the Odd-Proton, Midshell Nucleus ¹⁰³Rh,
    Phys. Rev. C 63, 024320 (2001).
    

42. T. Klug, A. Dewald, V. Werner, P. von Brentano, and R.F. Casten,
    The B(E2;4₂⁺→ 2₂⁺) Value in ¹⁵²Sm and β-Softness in Phase Coexisting Structures,
    Phys. Lett. 495B, 55 (2000).
    

43. V. Werner, N. Pietralla, P. von Brentano, R.F. Casten, and R.V. Jolos,
    Quadrupole shape invariants in the interacting boson model,
    Phys. Rev. C 61, 021301 (2000).
    

44. J. Bryssinck, L. Govor, V.Yu. Ponomarev, F. Bauwens, O. Beck, D. Belic, P. von Brentano, D. De Frenne, T. Eckert, C. Fransen, K. Govaert, R.-D. Herzberg, E. Jacobs, U. Kneissl, H. Maser, A. Nord, N. Pietralla, H.H. Pitz, and V. Werner,
    Systematic study of electric quadrupole excitations in the stable even mass Sn nuclei,
    Phys. Rev. C 61, 024309 (2000).
    

45. J. Bryssinck, L. Govor, V.Yu. Ponomarev, F. Bauwens, O. Beck, D. Belic, P. von Brentano, D. De Frenne, C. Fransen, R.-D. Herzberg, E. Jacobs, U. Kneissl, H. Maser, A. Nord, N. Pietralla, H.H. Pitz, and V. Werner,
    Search for the Electric Dipole Excitations to the 3s_1/2 ⊗ [2₁⁺ ⊗ 3₁^-] Multiplet in ¹¹⁷Sn,
    Phys. Rev. C 62, 014309 (2000).
    

46. A. Gade, I. Wiedenhöver, M. Luig, A. Gelberg, H. Meise, N. Pietralla, V. Werner, and P. von Brentano,
    Non-Yrast States of ¹³⁴Ce Populated in beta-Decay,
    Nucl. Phys. A 673, 45 (2000).
    

47. N. Pietralla, C. Fransen, D. Belic, P. von Brentano, C. Frießner, U. Kneissl, A. Linnemann, A. Nord, H.H. Pitz, T. Otsuka, I. Schneider, V. Werner, and I. Wiedenhöver,
    Transition Rates between Mixed Symmetry States: First Measurement in ⁹⁴Mo,
    Phys. Rev. Lett. 83, 1303 (1999).
    

48. V.Yu. Ponomarev, J. Bryssinck, L. Govor, F. Bauwens, O. Beck, D. Belic, P. von Brentano, D. De Frenne, C. Fransen, R.-D. Herzberg, E. Jacobs, U. Kneissl, H. Maser, A. Nord, N. Pietralla, H.H. Pitz, and V. Werner,
    Strong fragmentation of low-energy electromagnetic excitation strength in ¹¹⁷Sn,
    Phys. Rev. Lett. 83, 4029 (1999).
    

49. J. Bryssinck, L. Govor, D. Belic, F. Bauwens, O. Beck, P. von Brentano, D. De Frenne, T. Eckert, C. Fransen, K. Govaert, R.-D. Herzberg, E. Jacobs, U. Kneissl, H. Maser, A. Nord, N. Pietralla, H.H. Pitz, V.Yu. Ponomarev, and V. Werner,
    Uniform Properties of J^π = 1^- two-phonon states in the semi-magic even-even tin isotopes ^{116,118,120,122,124}Sn,
    Phys. Rev. C 59, 1930 (1999).
    

50. N. Pietralla, T. Mizusaki, P. von Brentano, R.V. Jolos, T. Otsuka, and V. Werner,
    2₁⁺ and 2₂⁺ States in Collective Nuclei as Multiple Q-Phonon Excitations,
    Phys. Rev. C 57, 150 (1998).
    

51. A. Nord, S.W. Yates, O. Beck, D. Belic, P. von Brentano, T. Eckert, C. Fransen, R.-D. Herzberg, U. Kneissl, H. Maser, N. Pietralla, H.H. Pitz, and V. Werner,
    Low-Lying Dipole Strength in ²⁰⁷Pb,
    Phys. Rev. C 57, 3459 (1998).
    

52. N. Pietralla, D. Belic, P. von Brentano, C. Fransen, R.-D. Herzberg, U. Kneissl, H. Maser, P. Matschinsky, A. Nord, T. Otsuka, H.H. Pitz, V. Werner, and I. Wiedenhöver,
    Isovector Quadrupole Excitations in the Valence Shell of the Vibrator Nucleus ¹³⁶Ba: Evidence from photon scattering experiments,
    Phys. Rev. C 58, 796 (1998).
    

Invited Talks at International Conferences:

1. V. Werner,
   Schalenstruktureffekte in Proton-Neutron symmetrischen und gemischt-symmetrischen Zuständen,
   Plenary talk, Frühjarstagung der Deutschen Physikalischen Gesellschaft, Fachverband Hadronen und Kerne, Giessen, Germany, March 12-16, 2007.

2. V. Werner,
   Collectivity vs. single-particle degrees of freedom near closed shells
   Minisymposium on Contemporary Frontiers in Nuclear Structure, 231st ACS National Meeting, Atlanta, GA, March 26-30, 2006.

3. V. Werner, E. Williams, P. von Brentano, and C. Scholl
   Structural Evolution from Shape Invariants,
   XXIX Symposium on Nuclear Physics, Cocoyoc, Morelos, Mexico, January 3-6, 2006, Rev. Mex. Fis. S 52, 103 (2006).

4. V. Werner, N. Pietralla, N. Benczer-Koller, G. Kumbartzki, E. Stefanova, C. Fransen, P. von Brentano, H. ai, R.F. Casten, A. Heinz, E.A. McCutchan, D.A. Meyer, J. Quian, E. Williams, R. Winkler, R.B. Cakirli, C.R. Fitzpatrick, and G. Gürdal,
   Magnetic Moment of a Mixed-Symmetry State of Zr Nuclei,
   Minisymposium on Nuclear Moments, Second Joint Meeting of the Nuclear Physics Divisions of the American Physical Society and The Physical Society of Japan, Maui, HI, September 18-22, 2005:
   Bull. Am. Phys. Soc. 50 (2005) 69.

5. V. Werner,
   Mixed-Symmetry States in ⁹²Zr and the N=52 Isotones,
   Fifth Biennial Workshop on Nuclear Structure Physics Near the Coulomb Barrier: Into the 21st Century, Yale University, New Haven, CT, June 23-25, 2005.

6. V. Werner,
   Properties of low-lying states: Shape parameters and proton-neutron symmetry,
   Carpathian Summer School of Physics 2005: Exotic Nuclei and Nuclear/Particle Astrophysics Mamaia, Romania, June 13-24, 2005 (World Scientific Singapore), in press.

7. K. Andgren, S.F. Ashley, P.H. Regan, E.A. McCutchan, N.V. Zamfir, L. Amon, R.B. Cakirli, R.F. Casten, R.M. Clark, G. Gurdal, K.L. Keyes, D.A. Meyer, M.N. Erduran, A. Papenberg, N. Pietralla, C. Plettner, G. Rainovski, R.V. Ribas, N.J. Thomas, J. Vinson, D.D. Warner, V. Werner, E. Williams,
   RDM lifetime measurements in ¹⁰⁷Cd,
   Proceedings of Nuclear Structure, Astrophysics and Reactions 2005 (NUSTAR'05), University of Surrey, Guildford, UK, January 5-8, 2005:
   J. Phys. (London) G31 S1563 (2005).

8. R.F. Casten, P. von Brentano, V. Werner, C. Scholl, E.A. McCutchan, R. Krücken, and J. Jolie,
   An Alternate Mechanism for E0 Transitions in Transitional and Deformed Nuclei,
   International Conference Proceedings in Honor of Stuart Pittel on the Occasion of His 60th Birthday, Cocoyoc, Morelos, Mexico, April 19-22, 2004, Nuclear Physics, Large and Small: Microscopic Studies of Collective Phenomena eds. R. Bijker, R.F. Casten and A. Frank (AIP Conf. Proc. 276, New York, 2004), p. 175.

9. N. Pietralla, C. Fransen, A.F. Lisetskiy, P. von Brentano, and V. Werner,
   Mixed Symmetry in the Symmetry Triangle,
   MAPPING THE TRIANGLE: International Conference on Nuclear Structure, Grand Teton National Park, Wyoming (USA), 22-25 May 2002, AIP Conference Proceedings 638 (2002) 11-16.

10. P. von Brentano, A. Gade, N. Pietralla, and V. Werner,
    Q-phonons, Q-invariants, and company,
    MAPPING THE TRIANGLE: International Conference on Nuclear Structure, Grand Teton National Park, Wyoming (USA), 22-25 May 2002, AIP Conference Proceedings 638 (2002) 69-76.

11. J. Jolie, S. Heinze, P. von Brentano, V. Werner, and P. Cejnar,
    New Interpretation of the O(6) Limit of the Interacting Boson Model,
    MAPPING THE TRIANGLE: International Conference on Nuclear Structure, Grand Teton National Park, Wyoming (USA), 22-25 May 2002, AIP Conference Proceedings 638 (2002) 213-222.

12. P. von Brentano, N. Pietralla, C. Fransen, A. Gelberg, U. Kneissl, T. Otsuka, H.H. Pitz, and V. Werner,
    Mixed-Symmetry Quadrupole States in Nuclei,
    Proceedings of the International Symposium on Nuclear Electro-Weak Spectroscopy (NEWS99), Osaka, Japan, 1999, Eds. H. Toki, T. Kishimoto, K. Hatanaka, K. Takashisa, ISBN 981-238-125-2 (World Scientific, 2002).

13. P. von Brentano, N. Pietralla, C. Fransen, C. Frießner, A. Gade, A. Gelberg, R.-D. Herzberg, U. Kneissl, T. Otsuka, H.H. Pitz, V. Werner, and I. Wiedenhöver,
    Low-Energy Q-Phonon Excitations in Nuclei,
    International Conference on Nuclear Structure, Gatlinburg, Tennessee, August 1998, American Institute of Physics Conference Proceedings 481 (1999) 449.

14. P. von Brentano, N. Pietralla, H. Meise, A. Gade, A. Dewald, C. Fransen, C. Friessner, J. Gableske, A. Gelberg, A. Schmidt, I. Schneider, V. Werner, U. Kneissl, H.H. Pitz, I. Wiedenhöver,
    Low Lying Isoscalar and Isovector Quadrupole Excitations,
    Proc. of the First Balkan School on Nuclear Physics, Istanbul, Turkey, 1998, Balkan Physics Letters, special issue (1998) 11-32.

15. U. Kneissl, O. Beck, D. Belic, T. Eckert, H. Maser, A. Nord, H.H. Pitz, P. von Brentano, C. Fransen, R.-D. Herzberg, N. Pietralla, V. Werner. F. Bauwens, J. Bryssinck, D. De Frenne, K. Govaert, E. Jacobs, L. Govor, S.W. Yates,
    Low-lying dipole excitations in heavy nuclei studied in photon scattering experiments,
    Proceedings of the 6th International Spring Seminar on Nuclear Structure by Aldo Covello, ISBN 981-02-3708-1 (World Scientific, Singapore) (1998) p. 243-252.

16. P. von Brentano, H. Meise, N. Pietralla, V. Werner, and R. V. Jolos,
    Q-Invariants and Multi-Phonon States,
    International Conference on Nuclear Models 1998 - Interacting Bosons and Fermions, Camerino, 1998, Universita degli Studi di Camerino, p. 15.

Contributions to International Conferences / published in books and journal special issues:

1. V. Werner, P. Boutachkov, E. Stefanova, N. Benczer-Koller, G. Kumbartzki, N. Pietralla, H. Ai, R.B. Cakirli, R.F. Casten, M. Chamberlain, C.R. Fitzpatrick, A.B. Garnsworthy, G. Gürdal, A. Heinz, X. Liang, P. Maier-Komor, E.A. McCutchan, D.A. Meyer, J. Qian, K.-H. Speidel, A.E. Stuchbery, N.J. Thompson, E. Williams, R. Winkler,
   First measurement of the g factor of a mixed-symmetry state,
   Nuclear Structure '06, Conference on Nuclei at the Limits, Oak Ridge, Tennessee, July 24-28, 2006.

2. V. Werner, N. Pietralla, P. von Brentano, U. Kneissl, H.H. Pitz, A. Tonchev, M.W. Ahmed, C. Fransen, H. von Garrel, C. Kohstall, J. Li, A. Linnemann, S. Müller, I.V. Pinayev, D. Savran, M. Scheck, F. Stedile, W. Tornow, S. Walter, H.R. Weller, and Y.K. Wu,
   New findings for mixed-symmetry states,
   Twelfth International Conference on Capture Gamma-Ray Spectroscopy and Related Topics (CGS12), University of Notre Dame, South Bend, IN, September 4-9, 2005, eds. Andreas Woehr and Ani Aprahamian, (AIP Conf. Proc. 819, New York, 2006), p. 340.

3. V. Werner, P. von Brentano, R.F. Casten, C. Scholl, E.A. McCutchan, R. Krücken, J. Jolie,
   Alternative interpretation of E0 strengths in transitional regions,
   Proceedings of Exotic Nuclei and Atomic Masses (ENAM 2004), Callaway Gardens, Pine Mountain, Georgia, September 12-16, 2004, eds. C.J. Gross, W. Nazarewicz, and K.P. Rykaczewski, ISBN-10 3-540-28441-9 (Springer, Berlin Heidelberg New York, 2005):
   Eur. Phys. J. A 25 Supplement 1, 455 (2005).

4. V. Werner, C. Scholl, P. von Brentano,
   A measure for triaxiality from K (shape) invariants,
   Proceedings of Exotic Nuclei and Atomic Masses (ENAM 2004), Callaway Gardens, Pine Mountain, Georgia, September 12-16, 2004, eds. C.J. Gross, W. Nazarewicz, and K.P. Rykaczewski, ISBN-10 3-540-28441-9 (Springer, Berlin Heidelberg New York, 2005):
   Eur. Phys. J. A 25 Supplement 1, 453 (2005).

5. V. Werner, P. von Brentano, C. Fransen, J. Jolie, N. Pietralla, U. Kneissl, H.H. Pitz, S.W. Yates, H.G. Börner,
   Isovector excitations near the N=50 shell closure,
   Proceedings of the Eleventh International Symposium Capture Gamma-Ray Spectroscopy and Related Topics, CGS11, September 2002, eds. J. Kvasil, P. Cejnar, and M. Krticka, ISBN 981-238-391-3 (World Scientific, Singapore, 2003), 150.

6. V. Werner and R.V. Jolos,
   Quadrupole shape invariants and simple E2-relations in the Q-phonon scheme,
   International Symposium on Nuclear Structure Physics, Göttingen, 2001, eds. Rick Casten, Jan Jolie, Ulrich Kneissl, and Peter Lieb, ISBN 981-02-4654-4 (World Scientific, Singapore, 2001), 415.

7. V. Werner, P. von Brentano, C. Fransen, A. Gade, U. Kneissl, A. Linnemann, N. Pietralla, and H.H. Pitz,
   The mixed-symmetric one-phonon 2⁺ state in ⁹⁶Mo,
   Exotic Nuclei and Atomic Masses (ENAM2001), Proceedings, Hämeenlinna, Finland, 2001, ISBN 3-540-00101-8 (Springer Publishing), 341.

8. N.J. Thompson, P.H. Regan, A.B. Garnsworthy, H. Ai, L. Amon, R.B. Cakirli, R.F. Casten, C.R. Fitzpatrick, S.J. Freeman, G. Gürdal, A. Heinz, G.A. Jones, E.A. McCutchan, J. Qian, V. Werner, E. Williams, and R. Winkler,
   Spectroscopy of ⁹¹Zr₅₁ at Medium to High Spins,
   Zakopane Conference on Nuclear Physics, 41st in the series of Zakopane Schools of Physics, Zakopane, Poland, September 4-10, 2006, in press.

9. S.F. Ashley, A. Linnemann, J. Jolie, P.H. Regan, K. Andgren, A. Dewald, E.A. McCutchan, B. Melon, O. Möller, N.V. Zamfir, L. Amon, N. Boelaert, R.B. Cakirli, R.F. Casten, R.M. Clark, C. Fransen, W. Gelletly, G. Gürdal, M. Heidemann, K.L. Keyes, M.N. Erduran, D.A. Meyer, A. Papenberg, C. Plettner, G. Rainovski, R.V. Ribas, N.J. Thomas, J. Vinson, D.D. Warner, V. Werner, E. Williams, and K.O. Zell,
   Lifetime Determination of Excited States in ¹⁰⁶Cd,
   Zakopane Conference on Nuclear Physics, 41st in the series of Zakopane Schools of Physics, Zakopane, Poland, September 4-10, 2006, in press.

10. P. Boutachkov, E. Stefanova, N. Benczer-Koller, G. Kumbartzki, E.A. McCutchan, V. Werner, H. Ai, A.B. Garnsworthy, G. Gürdal, A. Heinz, P. Maier-Komor, J. Qian, N.J. Thompson, E. Williams, R. Winkler,
    The interplay of single particle and collective motion in the A=70 region: magnetic moment measurements in ⁷⁰Ge.,
    Nuclear Structure '06, Conference on Nuclei at the Limits, Oak Ridge, Tennessee, July 24-28, 2006, in press.

11. P.H. Regan, N.J. Thompson, A.B. Garnsworthy, H.C. Ai, L. Amon, R.B. Cakirli, R.F. Casten, C. Fitzpatrick, S.J. Freeman, G. Gürdal, A. Heinz, G.A. Jones, E.A. McCutchanm, J. Qian, V. Werner, E.A. Williams, and R. Winkler,
    Isomer and In-Beam Spectroscopy of Medium-Spin States in ^91,92Zr,
    Twelfth International Conference on Capture Gamma-Ray Spectroscopy and Related Topics (CGS 12), University of Notre Dame, South Bend, IN, September 4-9, 2005, eds. Andreas Woehr and Ani Aprahamian, (AIP Conf. Proc. 819, New York, 2006), p. 35.

12. K. Andgren, S.F. Ashley, P.H. Regan, E.A. McCutchan, N.V. Zamfir, L. Amon, R.B. Cakirli, R.F. Casten, R.M. Clark, M.N. Erduran, G. Gürdal, K.L. Keyes, D.A. Meyer, A. Papenberg, N. Pietralla, C. Plettner, G. Rainovski, R.V. Ribas, N.J. Thomas, J. Vinson, D.D. Warner, V. Werner, and E. Williams,
    Recoil Distance Method Lifetime Measurements in ¹⁰⁷Cd and ¹⁰³Pd,
    International Conference on Frontiers in Nuclear Structure, Astrophysics and Reactions (FINUSTAR), Kos, Greece, September 12-17, 2005 (to be published).

13. C.J. McKay, J.N. Orce, S.R. Lesher, D. Bandyopadhyay, M.T. McEllistrem, C. Fransen, J. Jolie, A. Linnemann, N. Pietralla, V. Werner, S.W. Yates,
    Identification of mixed-symmetry states in odd-A ⁹³Nb,
    Proceedings of Exotic Nuclei and Atomic Masses (ENAM 2004), Callaway Gardens, Pine Mountain, Georgia, September 12-16, 2004, eds. C.J. Gross, W. Nazarewicz, and K.P. Rykaczewski, ISBN-10 3-540-28441-9 (Springer, Berlin Heidelberg New York, 2005):
    Eur.Phys.J. A 25 Supplement 1, 377 (2005); Eur.Phys.J. A 25 Supplement 1, 773 (2005).

14. M. Scheck, P. von Brentano, C. Fransen, A. Gade, H. von Garrel, J. Jolie, U. Kneissl, C. Kohstall, A. Linnemann, N. Pietralla, H.H. Pitz, F. Stedile, S. Walter, and V. Werner,
    Low-Lying Dipole Excitations in Nuclei in the Mass Regions of the New Dynamical Symmetries
    The International Conference "Nuclear Structure and Related Topics" (NSRT2003), Dubna, Russia, September 2-6, 2003:
    Yad. Fiz. 67 (2004) 1710; Phys. Atomic Nuclei 67, 1682 (2004).
    

15. H. von Garrel, P. von Brentano, C. Fransen, A. Gade, J. Jolie, F. Käppeler, L. Käubler, U. Kneissl, C. Kohstall, A. Linnemann, P. von Neumann-Cosel, N. Pietralla, H.H. Pitz, G. Rusev, M. Scheck, K.D. Schilling, R. Schwengner, F. Stedile, S. Walter, V. Werner, and K. Wisshak,
    First Nuclear Resonance Fluorescence Experiments Using Enriched High-Pressure Xenon Targtes
    XV International School on Nuclear Physics, Neutron Physics and Nuclear Energy, Varna, Bulgaria, Sept. 9-13, 2003:
    BgNS Transactions, Vol. 9, 178 (2004).

16. S. Walter, P. von Brentano, C. Fransen, A. Gade, H. von Garrel, J. Jolie, F. Käppeler, L. Käubler, U. Kneissl, C. Kohstall, A. Linnemann, P. von Neumann-Cosel, N. Pietralla, H.H. Pitz, G. Rusev, M. Scheck, K.D. Schilling, R. Schwengner, F. Stedile, V. Werner, and K. Wisshak,
    Photon Scattering Experiments on the Stellar Thermometer ¹⁷⁶Lu
    XV International School on Nuclear Physics, Neutron Physics and Nuclear Energy, Varna, Bulgaria, Sept. 9-13, 2003:
    BgNS Transactions, Vol. 9, 234 (2004).

17. D. Bandyopadhyay, C. Fransen, N. Boukharouba, V. Werner, J.L. Weil, S.W. Yates, and M.T. McEllistrem,
    Multiphonon Excitations in ¹²⁴Sn,
    MAPPING THE TRIANGLE: International Conference on Nuclear Structure, Grand Teton National Park, Wyoming (USA), 22-25 May 2002, AIP Conference Proceedings 638 (2002) 231-232.

18. C. Fransen, D. Bandyopadhyay, N. Boukharouba, P. von Brentano, S.R. Lesher, M.T. McEllistrem, N. Pietralla, V. Werner, and S.W. Yates,
    Investigating Low-spin States in ⁹²Zr With The (n,n'γ) Reaction,
    MAPPING THE TRIANGLE: International Conference on Nuclear Structure, Grand Teton National Park, Wyoming (USA), 22-25 May 2002, AIP Conference Proceedings 638 (2002) 239-240.

19. J. Jolie, S. Heinze, A. Linnemann, V. Werner, P. Cejnar, R.F. Casten,
    Landau theory of phase transitions and nuclear groundstate deformation,
    Proceedings of the Eleventh International Symposium Capture Gamma-Ray Spectroscopy and Related Topics, CGS11, September 2002, eds. J. Kvasil, P. Cejnar, and M. Krticka, ISBN 981-238-391-3 (World Scientific, Singapore, 2003), 36.

20. N. Pietralla, C. Fransen, A.F. Lisetskiy, P. von Brentano, and V. Werner
    Evolution of mixed-symmetry states near shell closures
    Proceedings of the Eleventh International Symposium Capture Gamma-Ray Spectroscopy and Related Topics, CGS11, September 2002, eds. J. Kvasil, P. Cejnar, and M. Krticka, ISBN 981-238-391-3 (World Scientific, Singapore, 2003), 97.

21. C. Fransen, D. Bandyopadhyay, N. Boukharouba, P. von Brentano, S.R. Lesher, M.T. McEllistrem, N. Pietralla, V. Werner, S.W. Yates,
    Investigating low-spin states in ⁹²Zr with inelastic neutron scattering,
    Proceedings of the Eleventh International Symposium Capture Gamma-Ray Spectroscopy and Related Topics, CGS11, September 2002, eds. J. Kvasil, P. Cejnar, and M. Krticka, ISBN 981-238-391-3 (World Scientific, Singapore, 2003), 660.

22. M. Scheck, D. Belic, H. von Garrel, U. Kneissl, C. Kohstall, H.H. Pitz, F. Stedile, J.J. Carroll, R. Toman, P. von Brentano, A. Gade, A. Linnemann, N. Pietralla, V. Werner,
    The systematics of dipole modes in the even-even Hf nuclei,
    Proceedings of the Eleventh International Symposium Capture Gamma-Ray Spectroscopy and Related Topics, CGS11, September 2002, eds. J. Kvasil, P. Cejnar, and M. Krticka, ISBN 981-238-391-3 (World Scientific, Singapore, 2003), 809.

23. C. Fransen, Z. Ammar, N. Boukharouba, A. Dewald, A. Gade, J. Jolie, U. Kneissl, M. Merrick, M.T. McEllistrem, N. Pietralla, N. Warr, V. Werner, and S.W. Yates,
    Investigating Mixed-Symmetry States in ⁹⁴Mo,
    International Symposium on Nuclear Structure Physics, Göttingen, 2001, eds. Rick Casten, Jan Jolie, Ulrich Kneissl, and Peter Lieb, ISBN 981-02-4654-4 (World Scientific, Singapore, 2001), 351.

24. M. Scheck, D. Belic, P. von Brentano, C. Fransen, A. Gade, J. Jolie, U. Kneissl, C. Kohstall, A. Linnemann, A. Nord, H.H. Pitz, F. Stedile, and V. Werner,
    Systematics of Dipole Excitations in the Stable ^{134,135,136,137,138}Ba Isotopes,
    XIV International School on Nuclear Physics, Neutron Physics, and Nuclear Energy, Varna, Bulgaria, September 25--30, 2001:
    BgNS Transactions, Vol. 7, No. 1, 188 (2002).
25. C. Kohstall, D. Belic, P. von Brentano, C. Fransen, R.-D. Herzberg, J. Jolie, U. Kneissl, H. Lehmann, A. Linnemann, P. Matschinsky, A. Nord, N. Pietralla, H.H. Pitz, M. Scheck, F. Stedile, V. Werner, and S.W. Yates,
    Low-Lying Dipole Excitations in the Stable Cd Isotopes: A systematics ,
    International Conference Nuclear Structure and Related Topics (NSRT-2000), Dubna, Russia, June 6 -- 10, 2000:
    Yad. Fiz. 64(6), 1217 (2001); Phys. Atomic Nuclei 64, 1143 (2001).
    

26. F. Stedile, E.E. Fill, D. Belic, P. von Brentano, C. Fransen, U. Kneissl, C. Kohstall, A. Linnemann, P. Matschinsky, A. Nord, N. Pietralla, H.H. Pitz, M. Scheck, and V. Werner,
    Generating inversion on a nuclear transition - photopumping of ¹⁰³Rh,
    7th International Conference on X-Ray Lasers, Saint-Malo, France, June 19-23, 2000:
    Journal de Physique IV 11(PR2), 271 (2001).
    

27. C. Fransen, P. von Brentano, A. Gade, V. Werner, N. Pietralla, U. Kneissl, and H.H. Pitz,
    Identification of Mixed-Symmetry States in ⁹⁴Mo,
    XXXV ZAKOPANE SCHOOL OF PHYSICS, International Conference on Nuclear Physics, Zakopane, Poland, September 5 - 13, 2000:
    Acta Phys. Pol. B 32, 777 (2001).
    

28. A. Nord, F. Bauwens, O. Beck, D. Belic, P. von Brentano, J. Bryssinck, D. De Frenne, T. Eckert, C. Fransen, K. Govaert, L. Govor, R.-D. Herzberg, E. Jacobs, U. Kneissl, H. Maser, A. Nord, N. Pietralla, H.H. Pitz, V. Yu. Ponomarev, V. Werner,
    Systematics of Low-Lying Dipole Strength in Heavy Nuclei from Resonance Fluorescence Experiments,
    Proceedings of the International Conference The Nucleus: New Physics for the New Millenium, FAURE (South Africa), January 18 -- 22, 1999, eds. F.D. Smit, R. Lindsay, and S.V. Förtsch, (Kluwer Academic / Plenum Publishers, New York) (2000) 315-319.

29. H.H. Pitz, F. Bauwens, D. Belic, J. Bryssinck, P. von Brentano, C. Fransen, D. De Frenne, L. Govor, R.-D. Herzberg, E. Jacobs, U. Kneissl, C. Kohstall, A. Linnemann, H. Maser, P. Matschinsky, A. Nord, N. Pietralla, V.Yu. Ponomarev, M. Scheck,F. Stedile, V. Werner,
    Systematics of Low-Lying E1 and M1 Excitations in Heavy Nuclei from Photon Scattering Experiments,
    Proceedings of the Tenth International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics, Santa Fe, August 30 -Sept 3, 1999, ed. Stephen Wender, AIP Conference Proceedings 529 621-623 (2000).

30. C. Kohstall, D. Belic, P. von Brentano, C. Fransen, R.-D. Herzberg, J. Jolie, U. Kneissl, H. Lehmann, A. Linnemann, P. Matschinsky, A. Nord, N. Pietralla, H.H. Pitz, V. Werner, and S.W. Yates,
    Systematics of Dipole Excitations in the Stable ^{110,111,112,113,114,116}Cd Isotopes,
    XIII International School on Nuclear Physics, Neutron Physics and Nuclear Energy", Varna, Bulgaria, September 27 -- October 3, 1999:
    Trans. Bulg. Nucl. Soc. 5, 179 (2000).

31. A.E. Almeido Pinto, J. Margraf, A. Nord, T. Eckert, U. Kneissl, H.H. Pitz, H. Maser, O. Beck, J. Besserer, B. Krischok, A. Wolpert, D. Belic, N. Pietralla, V. Werner,
    Low Lying Excitations in Odd Deformed Nucleus Studied by Nuclear Resonance Fluorescence,
    20th Brazilian Workshop Nuclear Physics, Proceedings, Sao Paulo, Brazil, 1998, (World Scientific, Singapore) (1998) 93.

32. N. Pietralla, C. Fransen, P. von Brentano, C. Frießner, A. Gade, A. Linnemann, P. Matschinsky, I. Schneider, V. Werner, I. Wiedenhöver, D. Belic, U. Kneissl, A. Nord, and H.H. Pitz,
    Investigation of Low-Spin Mixed-Symmetry States with Different Probes,
    International Conference on Nuclear Models 1998 - Interacting Bosons and Fermions, Camerino, 1998, Universita degli Studi di Camerino, p. 25.

Invited Seminars:

1. Rutgers University, Nuclear Physics Seminar, October 9, 2006:
   Proton-Neutron Structure of Full-Symmetry and Mixed-Symmetry States,

2. Yale University, Nuclear Physics Seminar, February 16, 2006:
   Structural evolution of low-lying states

3. Stony Brook, SUNY, Nuclear Physics Seminar, May 4, 2005:
   Proton-Neutron degrees of freedom in collective states

4. Triangle Universities Nuclear Laboratory (TUNL), Duke University, Seminar, March 3, 2005:
   Mixed-symmetry states in structural limits

5. Yale University, Nuclear Physics Seminar, October 5, 2004:
   Probing proton-neutron collectivity in nuclei

6. Yale University, Nuclear Physics Seminar, September 2, 2003:
   Mixed-Symmetry States in the Limits

7. Universität Stuttgart, Dynamitron-Tag, July 4, 2003:
   Erste Beobachtung von F-vektoriellen E1-Übergängen in Kernen

8. Universität Stuttgart, Dynamitron-Tag, June 8, 2001:
   Untersuchung von gemischt-symmetrischen Zuständen in Photonenstreuung