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Motivated by recent measurements of the neutral Bs-meson mixing, obtained by LHCb group and the Tevatron, and the possibility to have sizable NP effects in 12s, we revisit the Bs mixing in a family non-universal Z' model. We assume that the Z' boson contributes to the off-diagonal element M12s and also to the off-diagonal element 12s via tree-level Z'-induced b scc operators. We find that, with the constraints from Mss and the indirect CP asymmetry in BdJ/KS imposed, the present measured 1 experimental ranges for afss could not be reproduced. Thus, such a specific model could not simultaneously explain the present data on Bs mixing. It is expected that with the operation of the LHCb group and the future super B experiments, more accurate measurements, especially of the flavour-specific CP asymmetries, could shed light on the issue.
[1] Ball P, Fleischer R 2006 Eur. Phys. J. C 48 413
[2] Asner D 2010 arXiv:1010. 1589
[3] Abazov V M 2006 Phys. Rev. Lett. 97 021802
[4] Abulencia A 2006 Phys. Rev. Lett. 97 062003; Abulencia A Phys. Rev. Lett. 97 242003
[5] Aaij R 2012 Phys. Lett. B 709 177
[6] The 2011 LHCb-CONF-2011-050 .
[7] Lenz A J 2011 Phys. Rev. D 84 031501
[8] Lenz A, Nierste U 2011 arXiv:1102.4274 [hep-ph]
[9] Lenz A, Nierste U Charles J, Descotes-Genon S, Jantsch A, Kaufhold C, Lacker H, Monteil S, Niess V, T'Jampens S 2011 Phys. Rev. D 83 036004
[10] Aaltonen T 2011 arXiv:1112.1726
[11] Abazov V M 2012 Phys. Rev. D 85 032006
[12] Aaltonen T 2008 Phys. Rev. Lett. 100 161802;Aaltoner T 2008 Phys. Rev. Lett. 100 121803
[13] Abazov V M 2008 Phys. Rev. Lett. 101 241801
[14] Aaij R 2012 Phys. Rev. Lett. 108 101803
[15] Aaij R 2012 Phys. Lett. B 707 497
[16] Grossman Y, Nir Y, Raz G 2006 Phys. Rev. Lett. 97 151801
[17] Abazov V M 2010 Phys. Rev. D 82 032001; 2010 Phys. Rev. Lett. 105 081801
[18] Abazov V M 2011 Phys. Rev. D 84 052007
[19] Langacker P, Plumacher M 2000 Phys. Rev. D 62 013006
[20] Barger V, Everett L, Jiang J, Langacker P, Liu T, Wagner C 2009 Phys. Rev. D 80 055008;Barger V, Everett L L, Jiang J, Langacker P, Liu T, Wagner C E M 2009 JHEP 0912 048
[21] Alok A K, Baek S, London D 2011 JHEP 1107 111
[22] Buras A J, Gemmler K,Isidori G 2011 Nucl. Phys. B 843 107
[23] Gorbahn M, Jager S, Nierste U, Trine S 2011 Phys. Rev. D 84 034030
[24] Buras A J, Jager S, Urban J 2001 Nucl. Phys. B 605 600
[25] Buras A J 1998 hep-ph/9806471;Buchalla G, Buras A J, Lautenbacher M E 1996 Rev. Mod. Phys. 68 1125
[26] Shifman M A, Voloshin M B 1985 Sov. J. Nucl. Phys. 41 120 Shifman M A, Voloshin M B 1986 Sov. Phys. JETP 64 698
[27] Bigi I I Y, Uraltsev N G, Vainshtein A I 1992 Phys. Lett. B 293 430;Bigi I I Y, Uraltsec N G, Vainshtein A I 1993 Erratum-ibid. B 297 477
[28] Beneke M, Buchalla G, Dunietz I 1996 Phys. Rev. D 54 4419 Benekem, Buchalla G, Duniez I 2011 Erratum-Ibid. D 83 119902
[29] Dighe A S, Hurth T, Kim C S, Yoshikawa T 2002 Nucl. Phys. B 624 377
[30] Beneke M, Buchalla G, Greub C, Lenz A, Nierste U 1999 Phys. Lett. B 459 631
[31] Beneke M, Buchalla G, Lenz A, Nierste U 2003 Phys. Lett. B 576 173
[32] Ciuchini M, Franco E, Lubicz V, Mescia F, Tarantino C 2003 JHEP 0308 031
[33] Lenz A, Nierste U 2007 JHEP 0706 072
[34] Chiang C W, Datta A, Duraisamy M, London D, Nagashima M, Szynkman A 2010 JHEP 1004 031
[35] Nakamura K 2010 J. Phys. G 37 075021
[36] Lancaster M arXiv:1107.5255 [hep-ex]
[37] Wolfenstein L 1983 Phys. Rev. Lett. 51 1945
[38] Dorsner I, Drobnak J, Fajfer S, Kamenik J F, Kosnik N 2011 JHEP 1111 002
[39] Colangelo G, Durr S, Juttner A, Lellouch L, Leutwyler H, Lubicz V, Necco S, Sachrajda C T , Simula S ,Vladikas A ,Wenger U, Wittig H 2011 Eur. Phys. J. C 71 1695
[40] Chetyrkin K G, Kuhn J H, Steinhauser M 2000 Comput. Phys. Commun. 133 43
[41] Charles J 2005 Eur. Phys. J. C 411
[42] Acosta D 2005 Phys. Rev. Lett. 95 131801
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[1] Ball P, Fleischer R 2006 Eur. Phys. J. C 48 413
[2] Asner D 2010 arXiv:1010. 1589
[3] Abazov V M 2006 Phys. Rev. Lett. 97 021802
[4] Abulencia A 2006 Phys. Rev. Lett. 97 062003; Abulencia A Phys. Rev. Lett. 97 242003
[5] Aaij R 2012 Phys. Lett. B 709 177
[6] The 2011 LHCb-CONF-2011-050 .
[7] Lenz A J 2011 Phys. Rev. D 84 031501
[8] Lenz A, Nierste U 2011 arXiv:1102.4274 [hep-ph]
[9] Lenz A, Nierste U Charles J, Descotes-Genon S, Jantsch A, Kaufhold C, Lacker H, Monteil S, Niess V, T'Jampens S 2011 Phys. Rev. D 83 036004
[10] Aaltonen T 2011 arXiv:1112.1726
[11] Abazov V M 2012 Phys. Rev. D 85 032006
[12] Aaltonen T 2008 Phys. Rev. Lett. 100 161802;Aaltoner T 2008 Phys. Rev. Lett. 100 121803
[13] Abazov V M 2008 Phys. Rev. Lett. 101 241801
[14] Aaij R 2012 Phys. Rev. Lett. 108 101803
[15] Aaij R 2012 Phys. Lett. B 707 497
[16] Grossman Y, Nir Y, Raz G 2006 Phys. Rev. Lett. 97 151801
[17] Abazov V M 2010 Phys. Rev. D 82 032001; 2010 Phys. Rev. Lett. 105 081801
[18] Abazov V M 2011 Phys. Rev. D 84 052007
[19] Langacker P, Plumacher M 2000 Phys. Rev. D 62 013006
[20] Barger V, Everett L, Jiang J, Langacker P, Liu T, Wagner C 2009 Phys. Rev. D 80 055008;Barger V, Everett L L, Jiang J, Langacker P, Liu T, Wagner C E M 2009 JHEP 0912 048
[21] Alok A K, Baek S, London D 2011 JHEP 1107 111
[22] Buras A J, Gemmler K,Isidori G 2011 Nucl. Phys. B 843 107
[23] Gorbahn M, Jager S, Nierste U, Trine S 2011 Phys. Rev. D 84 034030
[24] Buras A J, Jager S, Urban J 2001 Nucl. Phys. B 605 600
[25] Buras A J 1998 hep-ph/9806471;Buchalla G, Buras A J, Lautenbacher M E 1996 Rev. Mod. Phys. 68 1125
[26] Shifman M A, Voloshin M B 1985 Sov. J. Nucl. Phys. 41 120 Shifman M A, Voloshin M B 1986 Sov. Phys. JETP 64 698
[27] Bigi I I Y, Uraltsev N G, Vainshtein A I 1992 Phys. Lett. B 293 430;Bigi I I Y, Uraltsec N G, Vainshtein A I 1993 Erratum-ibid. B 297 477
[28] Beneke M, Buchalla G, Dunietz I 1996 Phys. Rev. D 54 4419 Benekem, Buchalla G, Duniez I 2011 Erratum-Ibid. D 83 119902
[29] Dighe A S, Hurth T, Kim C S, Yoshikawa T 2002 Nucl. Phys. B 624 377
[30] Beneke M, Buchalla G, Greub C, Lenz A, Nierste U 1999 Phys. Lett. B 459 631
[31] Beneke M, Buchalla G, Lenz A, Nierste U 2003 Phys. Lett. B 576 173
[32] Ciuchini M, Franco E, Lubicz V, Mescia F, Tarantino C 2003 JHEP 0308 031
[33] Lenz A, Nierste U 2007 JHEP 0706 072
[34] Chiang C W, Datta A, Duraisamy M, London D, Nagashima M, Szynkman A 2010 JHEP 1004 031
[35] Nakamura K 2010 J. Phys. G 37 075021
[36] Lancaster M arXiv:1107.5255 [hep-ex]
[37] Wolfenstein L 1983 Phys. Rev. Lett. 51 1945
[38] Dorsner I, Drobnak J, Fajfer S, Kamenik J F, Kosnik N 2011 JHEP 1111 002
[39] Colangelo G, Durr S, Juttner A, Lellouch L, Leutwyler H, Lubicz V, Necco S, Sachrajda C T , Simula S ,Vladikas A ,Wenger U, Wittig H 2011 Eur. Phys. J. C 71 1695
[40] Chetyrkin K G, Kuhn J H, Steinhauser M 2000 Comput. Phys. Commun. 133 43
[41] Charles J 2005 Eur. Phys. J. C 411
[42] Acosta D 2005 Phys. Rev. Lett. 95 131801
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