Can contributions to Bs→l+l-γ from the magnetic-penguin operator with real photons in the standard model be neglected?

  • Using the Bs meson wave function extracted from non-leptonic Bs decays, we reevaluate the rare decays Bs→l+l- γ,(l=e,μ) in the Standard Model, including two kinds of contributions from the magnetic-penguin operator with virtual and real photons. We find that contributions to the exclusive decays from the magnetic-penguin operator b→sγ with real photons, which were regarded as negligible in the previous literature, are large and the branching ratios Bs→l+l-γ are enhanced by a factor of almost 2. With the predicted branching ratios of the order of 10-8, it is expected that these radiative dileptonic decays will be detected in LHC-b and B factories in the near future.
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  • [1] Aliev T M, Ozpineci A, Savci M. Phys. Rev. D, 1997, 55: 7059[2] HENG Z et al. Phys. Rev. D, 2008, 77: 095012; LU G R, XIONG Z H, CAO Y G. Nucl. Phys. B, 1997, 487: 43; XIONG Z H, YANG J M. Nucl. Phys. B, 2001, 602: 289, Nucl. Phys. B, 2002, 628: 193; LU G R et al. Phys. Rev. D, 1996, 54: 5647; XIONG Z H. HEP NP, 2006, 30: 284 (in Chinese)[3] Burdman G, Goldman T, Wyler D. Phys. Rev. D, 1995, 51: 111; Charng Y Y, LI H N. Phys. Rev. D, 2005, 72: 014003[4] Buras A J et al. Nucl. Phys. B, 1994, 424: 374[5] Misiak M et al. Phys. Rev. Lett., 2007, 98: 022002; Hurth T. Rev. Mod. Phys., 2003, 75: 1159; Bobeth C et al. JHEP, 2004, 0404: 071; Ghinculov A et al. Nucl. Phys. B, 2004, 685: 351; Asatryan H H et al. Phys. Rev. D, 2002, 65: 074004[6] HUANG C S, WU X H. Nucl. Phys. B, 2003, 657: 304 [hep-ph/0212220]; Dedes A, Rosiek J, Tanedo P. Phys. Rev. D, 2009, 79: 055006 [arXiv:0812.4320 [hep-ph]]; XU Y G, WANG R M, YANG Y D. Phys. Rev. D, 2006, 74: 114019 [hep-ph/0610338]; Ellis J R et al. JHEP, 2006, 0605: 063 [hep-ph/0603136]; Baek S. Phys. Lett. B, 2004, 595: 461 [hep-ph/0406007]; Cornell A S, Gaur N. JHEP, 2003, 0309: 030 [hep-ph/0308132]; Chankowski P H, Slawianowska L. Eur. Phys. J. C, 2004, 33: 123 [hep-ph/0308032][7] Aliev T M, Turan G. Phys. Rev. D, 1993, 48: 1176; Aliev T M, Hiller G, Iltan E O. Nucl. Phys. B, 1998, 515: 321; Aliev T M, Iltan E O. Phys. Rev. D 1998, 58: 095014; CAO J J, XIAO Z J, LU G R. Phys. Rev. D, 2001, 64: 014012; XIAO Z J, LU L X. Phys. Rev. D, 2006, 74: 034016 [hep-ph/0605076]; XIAO Z J, GUO L. Phys. Rev. D, 2004, 69: 014002 [hep-ph/0309103][8] XIONG Z H, YANG J M. Phys. Lett. B, 2002, 546: 221 [hep-ph/0208147]; XIAO Z J, L C D, HUO W J. Phys. Rev. D, 2003, 67: 094021 [hep-ph/0301221]. LU G R et al. Z. Phys. C, 1997, 74: 355 [hep-ph/9609283][9] RAaij et al. (LHCb collaboration). Phys. Rev. Lett., 2013, 110: 021801 [arXiv:1211.2674][10] Eilam G, L C D, ZHANG D X. Phys. Lett. B, 1997, 391: 461); Erkol G, Turan G. Phys. Rev. D, 2002, 65: 094029[11] CHEN J X et al. Commun. Theor. Phys., 2007, 47: 299[12] Melikhov D, Nikitin N. Phys. Rev. D, 2004, 70: 114028[13] Kruger F, Melikhov D. Phys. Rev. D, 2003, 67: 034002[14] Nikitin N, Balakireva I, Melikhov D. arXiv:1101.4276v1 [hep-ph]; GENG C Q, LIH C C, ZHANG W M. Phys.Rev. D, 2000, 62: 074017; Dincer Y, Sehgal L M. Phys. Lett. B, 2001 521: 7; Descotes-Genon S, Sachrajda C T. Phys. Lett. B, 2003, B557: 213[15] DONG F L, WANG W Y, XIONG Z H. Chin. Phys. C (HEP NP), 2011, 35: 6[16] LI Y et al. Phys. Rev. D, 2004, 70: 034009; YU X Q, LI Y, L C D. Phys. Rev. D, 2006, 71: 074026; Phys. Rev. D, 20006, 73: 017501[17] L C D. Eur. Phys. J. C, 2002, 24: 121 and Phys. Rev. D, 2003, 68: 097502; Keum Y Y, Sanda A I. Phys. Rev. D, 2003, 67: 054009; Keum Y Y et al. Phys. Rev. D, 2004, 69: 094018; ZHU J, SHEN Y L, L C D. Phys. Rev. D, 2005, 72: 054015, Eur. Phys. J. C, 2005, 41: 311; LI Y, L C D. Phys. Rev. D, 2006, 73: 014024; L C D et al. Phys. Rev. D, 2005, 72: 094005[18] L C D, Ukai K, YANG M Z. Phys. Rev. D, 2001, 63: 074009; Keum Y Y, LI H N, Sanda A I. Phys. Lett. B, 2001, 504: 6, Phys. Rev. D, 2001, 63: 054008; LI H N. Phys. Rev. D, 2001, 64:014019 ; Mishima S. Phys. Lett. B, 2001, 521: 252; CHEN C H, Keum Y Y, LI H N. Phys. Rev. D, 2001, 64: 112002; Phys. Rev. D, 2002, 66: 054013[19] L C D, YANG M Z. Eur. Phys. J. C, 2003, 28: 515[20] Misiak M. Nucl. Phys. B, 1993, 393: 23[21] Nakamura K et al. (Particle Data Group). J. Phys. G, 2010, 37: 075021; 2011 partial update for the 2012 edition[22] Eilam G, Halperin I, Mendel R R. Phys. Lett. B, 1995, 361: 137
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WANG Wen-Yu, XIONG Zhao-Hua and ZHOU Si-Hong. Can contributions to Bs→l+l-γ from the magnetic-penguin operator with real photons in the standard model be neglected?[J]. Chinese Physics C, 2014, 38(6): 063103. doi: 10.1088/1674-1137/38/6/063103
WANG Wen-Yu, XIONG Zhao-Hua and ZHOU Si-Hong. Can contributions to Bs→l+l-γ from the magnetic-penguin operator with real photons in the standard model be neglected?[J]. Chinese Physics C, 2014, 38(6): 063103.  doi: 10.1088/1674-1137/38/6/063103 shu
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Received: 2013-07-17
Revised: 2013-12-07
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Can contributions to Bs→l+l-γ from the magnetic-penguin operator with real photons in the standard model be neglected?

    Corresponding author: WANG Wen-Yu,
    Corresponding author: XIONG Zhao-Hua,
    Corresponding author: ZHOU Si-Hong,
  • 1. Institute of Theoretical Physics, Beijing University of Technology, Beijing 100124, China

Abstract: Using the Bs meson wave function extracted from non-leptonic Bs decays, we reevaluate the rare decays Bs→l+l- γ,(l=e,μ) in the Standard Model, including two kinds of contributions from the magnetic-penguin operator with virtual and real photons. We find that contributions to the exclusive decays from the magnetic-penguin operator b→sγ with real photons, which were regarded as negligible in the previous literature, are large and the branching ratios Bs→l+l-γ are enhanced by a factor of almost 2. With the predicted branching ratios of the order of 10-8, it is expected that these radiative dileptonic decays will be detected in LHC-b and B factories in the near future.

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