Advertisement

Strong and radiative decays of the D s0 * (2317) and Ds1(2460)

  • Martin ClevenEmail author
  • Harald W. Grießhammer
  • Feng-Kun Guo
  • Christoph Hanhart
  • Ulf-G. Meißner
Regular Article - Theoretical Physics

Abstract

Since their discovery in 2003, the open charm states D s0 * and D s1(2460) provide a challenge to the conventional quark model. In recent years, theoretical evidence has been accumulated for both states in favor of a predominantly DK and D*K molecular nature, respectively. However, a direct experimental proof of this hypothesis still needs to be found. Since radiative decays are generally believed to be sensitive to the inner structure of the decaying particles, we study in this work the radiative and strong decays of both the D s0 * (2317) and D s1(2460), as well as of their counterparts in the bottom sector. While the strong decays are indeed strongly enhanced for molecular states, the radiative decays are of similar order of magnitude in different pictures. Thus, the experimental observable that allows one to conclusively quantify the molecular components of the D s0 * (2317) and D s1(2460) is the hadronic width, and not the radiative one, in contradistinction to common belief. We also find that radiative decays of the sibling states in the bottom sector are significantly more frequent than the hadronic ones. Based on this, we identify their most promising discovery channels.

Keywords

Heavy Quark Decay Width Radiative Decay Molecular State Contact Term 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. 1.
    S. Godfrey, N. Isgur, Phys. Rev. D 32, 189 (1985).CrossRefADSGoogle Scholar
  2. 2.
    BaBar Collaboration (B. Aubert et al.), Phys. Rev. Lett. 90, 242001 (2003) hep-ex/0304021.CrossRefADSGoogle Scholar
  3. 3.
    CLEO Collaboration (D. Besson et al.), Phys. Rev. D 68, 032002 (2003) 75.CrossRefADSGoogle Scholar
  4. 4.
    M.A. Nowak, M. Rho, I. Zahed, Phys. Rev. D 48, 4370 (1993) hep-ph/9209272.CrossRefADSGoogle Scholar
  5. 5.
    W.A. Bardeen, E.J. Eichten, C.T. Hill, Phys. Rev. D 68, 054024 (2003) hep-ph/0305049.CrossRefADSGoogle Scholar
  6. 6.
    M.A. Nowak, M. Rho, I. Zahed, Acta Phys. Pol. B 35, 2377 (2004) hep-ph/0307102.ADSGoogle Scholar
  7. 7.
    F.-K. Guo, C. Hanhart, U.-G. Meißner, Phys. Rev. Lett. 102, 242004 (2009) arXiv:0904.3338 [hep-ph].CrossRefADSGoogle Scholar
  8. 8.
    T. Barnes, F.E. Close, H.J. Lipkin, Phys. Rev. D 68, 054006 (2003) hep-ph/0305025.CrossRefADSGoogle Scholar
  9. 9.
    E. van Beveren, G. Rupp, Phys. Rev. Lett. 91, 012003 (2003) hep-ph/0305035.CrossRefADSGoogle Scholar
  10. 10.
    E. van Beveren, G. Rupp, Eur. Phys. J. C 32, 493 (2004) hep-ph/0306051.CrossRefADSGoogle Scholar
  11. 11.
    E.E. Kolomeitsev, M.F.M. Lutz, Phys. Lett. B 582, 39 (2004) hep-ph/0307133.CrossRefADSGoogle Scholar
  12. 12.
    F.-K. Guo, P.-N. Shen, H.-C. Chiang, R.-G. Ping, B.-S. Zou, Phys. Lett. B 641, 278 (2006) hep-ph/0603072.CrossRefADSGoogle Scholar
  13. 13.
    Y.-J. Zhang, H.-C. Chiang, P.-N. Shen, B.-S. Zou, Phys. Rev. D 74, 014013 (2006) hep-ph/0604271.CrossRefADSGoogle Scholar
  14. 14.
    F.-K. Guo, P.-N. Shen, H.-C. Chiang, Phys. Lett. B 647, 133 (2007) hep-ph/0610008.CrossRefADSGoogle Scholar
  15. 15.
    M. Altenbuchinger, L.-S. Geng, arXiv:1310.5224 [hep-ph].
  16. 16.
    M. Altenbuchinger, L.-S. Geng, W. Weise, Phys. Rev. D 89, 014026 (2014) arXiv:1309.4743 [hep-ph].CrossRefADSGoogle Scholar
  17. 17.
    X.-G. Wu, Q. Zhao, Phys. Rev. D 85, 034040 (2012) arXiv:1111.4002 [hep-ph].CrossRefADSGoogle Scholar
  18. 18.
    S. Weinberg, Phys. Rev. 130, 776 (1963).MathSciNetCrossRefADSGoogle Scholar
  19. 19.
    D. Mohler, C.B. Lang, L. Leskovec, S. Prelovsek, R.M. Woloshyn, Phys. Rev. Lett. 111, 222001 (2013) arXiv:1308.3175 [hep-lat].CrossRefADSGoogle Scholar
  20. 20.
    C.B. Lang, L. Leskovec, D. Mohler, S. Prelovsek, R.M. Woloshyn, arXiv:1403.8103 [hep-lat].
  21. 21.
    L. Liu, K. Orginos, F.-K. Guo, C. Hanhart, U.-G. Meißner, Phys. Rev. D 87, 014508 (2013) arXiv:1208.4535 [hep-lat].CrossRefADSGoogle Scholar
  22. 22.
    F.-K. Guo, L. Liu, U.-G. Meißner, P. Wang, Phys. Rev. D 88, 074506 (2013) arXiv:1308.2545 [hep-lat].CrossRefADSGoogle Scholar
  23. 23.
    F.-K. Guo, C. Hanhart, U.-G. Meißner, Eur. Phys. J. A 40, 171 (2009) arXiv:0901.1597 [hep-ph].CrossRefADSGoogle Scholar
  24. 24.
    J. Hofmann, M.F.M. Lutz, Nucl. Phys. A 733, 142 (2004) hep-ph/0308263.CrossRefADSGoogle Scholar
  25. 25.
    A. Faessler, T. Gutsche, V.E. Lyubovitskij, Y.-L. Ma, Phys. Rev. D 76, 014005 (2007) arXiv:0705.0254 [hep-ph].CrossRefADSGoogle Scholar
  26. 26.
    F.-K. Guo, C. Hanhart, S. Krewald, U.-G. Meißner, Phys. Lett. B 666, 251 (2008) arXiv:0806.3374 [hep-ph].CrossRefADSGoogle Scholar
  27. 27.
    D. Gamermann, L.R. Dai, E. Oset, Phys. Rev. C 76, 055205 (2007) arXiv:0709.2339 [hep-ph].CrossRefADSGoogle Scholar
  28. 28.
    A. Faessler, T. Gutsche, V.E. Lyubovitskij, Y.-L. Ma, Phys. Rev. D 76, 114008 (2007) arXiv:0709.3946 [hep-ph].CrossRefADSGoogle Scholar
  29. 29.
    M.F.M. Lutz, M. Soyeur, Nucl. Phys. A 813, 14 (2008) arXiv:0710.1545 [hep-ph].CrossRefADSGoogle Scholar
  30. 30.
    T. Mehen, R.P. Springer, Phys. Rev. D 70, 074014 (2004) hep-ph/0407181.CrossRefADSGoogle Scholar
  31. 31.
    C. Hanhart, Y.S. Kalashnikova, A.E. Kudryavtsev, A.V. Nefediev, Phys. Rev. D 75, 074015 (2007) hep-ph/0701214.CrossRefADSGoogle Scholar
  32. 32.
    T. Mehen, R.P. Springer, Phys. Rev. D 72, 034006 (2005) hep-ph/0503134.CrossRefADSGoogle Scholar
  33. 33.
    H.-Y. Cheng, F.-S. Yu, arXiv:1404.3771 [hep-ph].
  34. 34.
    M. Cleven, F.-K. Guo, C. Hanhart, U.-G. Meißner, Eur. Phys. J. A 47, 19 (2011) arXiv:1009.3804 [hep-ph].CrossRefADSGoogle Scholar
  35. 35.
    Z.-G. Wang, Phys. Rev. D 75, 034013 (2007) hep-ph/0612225.CrossRefADSGoogle Scholar
  36. 36.
    Z.-G. Wang, Chin. Phys. Lett. 25, 3908 (2008) arXiv:0712.0118 [hep-ph].CrossRefADSGoogle Scholar
  37. 37.
    Z.-G. Wang, Commun. Theor. Phys. 52, 91 (2009) arXiv:0803.1223 [hep-ph].CrossRefADSGoogle Scholar
  38. 38.
    Z.G. Wang, Phys. Rev. D 77, 054024 (2008) arXiv:0801.0267 [hep-ph].CrossRefADSGoogle Scholar
  39. 39.
    D. Gamermann, E. Oset, D. Strottman, M.J. Vicente Vacas, Phys. Rev. D 76, 074016 (2007) hep-ph/0612179.CrossRefADSGoogle Scholar
  40. 40.
    D. Gamermann, E. Oset, Eur. Phys. J. A 33, 119 (2007) arXiv:0704.2314 [hep-ph].CrossRefADSGoogle Scholar
  41. 41.
    M. Mai, P.C. Bruns, U.-G. Meißner, Phys. Rev. D 86, 094033 (2012) arXiv:1207.4923 [nucl-th].CrossRefADSGoogle Scholar
  42. 42.
    U.-G. Meißner, U. Raha, A. Rusetsky, Eur. Phys. J. C 41, 213 (2005) 45.CrossRefADSGoogle Scholar
  43. 43.
    M. Cleven, arXiv:1405.4195 [hep-ph].
  44. 44.
    J.F. Amundson, C.G. Boyd, E.E. Jenkins, M.E. Luke, A.V. Manohar, J.L. Rosner, M.J. Savage, M.B. Wise, Phys. Lett. B 296, 415 (1992) hep-ph/9209241.CrossRefADSGoogle Scholar
  45. 45.
    J. Hu, T. Mehen, Phys. Rev. D 73, 054003 (2006) hep-ph/0511321.CrossRefADSGoogle Scholar
  46. 46.
    Particle Data Group Collaboration (J. Beringer et al.), Phys. Rev. D 86, 010001 (2012).CrossRefADSGoogle Scholar
  47. 47.
    F.-K. Guo, C. Hanhart, U.-G. Meißner, JHEP 09, 136 (2008) arXiv:0809.2359 [hep-ph].CrossRefADSGoogle Scholar
  48. 48.
    A. Faessler, T. Gutsche, V.E. Lyubovitskij, Y.-L. Ma, Phys. Rev. D 77, 114013 (2008) arXiv:0801.2232 [hep-ph].CrossRefADSGoogle Scholar
  49. 49.
    J. Gasser, H. Leutwyler, Ann. Phys. 158, 142 (1984).MathSciNetCrossRefADSGoogle Scholar
  50. 50.
    J. Gasser, H. Leutwyler, Nucl. Phys. B 250, 465 (1985).CrossRefADSGoogle Scholar
  51. 51.
    J. Gasser, M.E. Sainio, A. Svarc, Nucl. Phys. B 307, 779 (1988).CrossRefADSGoogle Scholar
  52. 52.
    G. Ecker, J. Gasser, H. Leutwyler, A. Pich, E. de Rafael, Phys. Lett. B 223, 425 (1989).CrossRefADSGoogle Scholar
  53. 53.
    B. Borasoy, U.-G. Meißner, Int. J. Mod. Phys. A 11, 5183 (1996) hep-ph/9511320.CrossRefADSGoogle Scholar
  54. 54.
    C. Itzykson, J.-B. Zuber, Quantum Field Theory (McGraw-Hill, 1980).Google Scholar
  55. 55.
    U.-G. Meißner, Phys. Rep. 161, 213 (1988).CrossRefADSGoogle Scholar
  56. 56.
    P. Colangelo, F. De Fazio, A. Ozpineci, Phys. Rev. D 72, 074004 (2005) hep-ph/0505195.CrossRefADSGoogle Scholar

Copyright information

© SIF, Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Martin Cleven
    • 1
    Email author
  • Harald W. Grießhammer
    • 1
  • Feng-Kun Guo
    • 2
  • Christoph Hanhart
    • 1
    • 3
  • Ulf-G. Meißner
    • 1
    • 2
    • 3
  1. 1.Institut für Kernphysik and Jülich Center for Hadron PhysicsForschungszentrum JülichJülichGermany
  2. 2.Helmholtz-Institut für Strahlen- und Kernphysik and Bethe Center for Theoretical PhysicsUniversität BonnBonnGermany
  3. 3.Institute for Advanced SimulationForschungszentrum JülichJülichGermany

Personalised recommendations