2012

New Physics in B-Bbar mixing in the light of recent LHCb data

Lenz, A., Nierste, U., Charles, J. et al.

Understand

We perform model-independent statistical analyses of three scenarios accommodating New Physics (NP) in Delta F=2 flavour-changing neutral current amplitudes.

In a scenario in which NP in B_d-B_d-bar and B_s-B_s-bar is uncorrelated, we find the parameter point representing the Standard-Model disfavoured by 2.4 standard deviations.
However, recent LHCb data on B_s neutral-meson mixing forbid a good accommodation of the D0 data on the semileptonic CP asymmetry A_SL.
We introduce a fourth scenario with NP in both M_12^d,s and Gamma_12^d,s, which can accommodate all data.

Built on

N. Cabibbo, Phys. Rev. Lett. 10
1973
Earlier work this paper cites.
M. Beneke, G. Buchalla, A. Lenz and U. Nierste, Phys. Lett. B 576 (2003) 173, arXiv:hep-ph/0307344
2003
Earlier work this paper cites.
M. Beneke, G. Buchalla and I. Dunietz, Phys. Rev. D54 (1996) 4419, arXiv:hep-ph/9605259; M. Beneke, G. Buchalla, C. Greub, A. Lenz and U. Nierste, Phys. Lett.B 459 (1999) 631, arXiv:hep-ph/9808385; M. Ciuchini, E. Franco, V. Lubicz, F. Mescia and C. Tarantino, JHEP 0308 (2003) 031, arXiv:hep-ph/0308029
2003
Earlier work this paper cites.
Updates and numerical results of: The CKMfitter Group (J. Charles et al. ), Eur. Phys. J. C 41
2005
Earlier work this paper cites.
A. Abulencia et al
2006
Earlier work this paper cites.
A. Lenz and U. Nierste, JHEP 0706 (2007) 072, arXiv:hep-ph/0612167
2007
Earlier work this paper cites.

Similar

E. Lunghi and A. Soni, Phys. Lett. B 697
Original
2010
Cited alongside, same era.
V. M. Abazov et al
Original
2010
Cited alongside, same era.
M. Antonelli, V. Cirigliano, G. Isidori, F. Mescia, M. Moulson, H. Neufeld, E. Passemar and M. Palutan et al
Original
2010
Cited alongside, same era.
J. Charles et al
Original
2011
Cited alongside, same era.
A. Lenz et al
Original
2011
Cited alongside, same era.
V. M. Abazov et al
Original
2011
Cited alongside, same era.
A. J. Buras, Climbing NLO and NNLO Summits of Weak Decays , arXiv:1102.5650 [hep-ph] and references therein
Original
Cited in the paper.
T. Aaltonen et al
Original
Cited in the paper.
E. Barberio et al. [Heavy Flavour Averaging Group], arXiv:1010.1589 [hep-ex] and update on the HFAG web site: http://www.slac.stanford.edu/xorg/hfag/
Original
Cited in the paper.
S. Banerjee [BaBar Collaboration], arXiv:0811.1429 [hep-ex]
Original
Cited in the paper.
A. Lenz and U. Nierste, arXiv:1102.4274 [hep-ph]
Original
Cited in the paper.
R. Aaij, et al
Original
Cited in the paper.

Then

A. Dighe, A. Kundu and S. Nandi, Phys. Rev. D 82
Original
2011
Later among the works it cites.
V. M. Abazov et al
Original
2012
Closest in time.
R. Aaij et al
Original
2012
Closest in time.
R. Aaij et al
Original
2012
Closest in time.
K. Nakamura et al
2012
Closest in time.
R. Aaij et al
Original
2012
Closest in time.

Beyond the bibliography

alphaXiv searches the wider corpus for related work and actual follow-ups.

Open on alphaXiv

alphaXiv is searching for related work…

Reading the bibliography…