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Datta, Alakabha; Duraisamy, Murugeswaran; London, David

doi:10.1103/physrevd.86.076011

Cited by 36 publications

(55 citation statements)

References 51 publications

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“…Thus deviations of the measured phase in B 0 s → φφ from −2β s might tell us something about unexpected non-perturbative enhancements of the up quark penguins compared to the charm quark penguins. More advanced theory investigations can be found in (Bartsch et al, 2008;Beneke et al, 2007;Cheng and Chua, 2009;Datta et al, 2012). First measurements (see (Aaij et al, 2014e)) have still a sizable uncertainty, but they show no significant deviation of the mixing phase in B 0 s → φφ from −2β s .…”

Section: Compare the Decay Bmentioning

confidence: 99%

CP violation in the Bs0 system

2016

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We review experimental and theoretical studies of CP violation in the B 0 s system. Updated predictions for the mixing parameters of the B 0 s mesons expected in the Standard Model (SM) are given, namely the mass difference ∆M SM s = (18.3±2.7) ps −1 , the decay rate difference ∆Γ SM s = (0.085 ± 0.015) ps −1 , and the flavour specific CP asymmetry a s,SM fs = (2.22 ± 0.27) × 10 −5 and the equivalent quantities in the B 0 -sector. Current experimental values of ∆Ms and ∆Γs agree with remarkable precision with theoretical expectations. This agreement supports the applicability of theoretical tools such as the Heavy Quark Expansion (HQE) to these decays. CP violating studies in the B 0 s system provide essential information to test the SM expectations, and to unveil possible contribution of the new physics (NP). NP effects on ∆Ms of the order of 15% are still possible. The CP phase φs due to CP violation in interference of decays and mixing can accommodate effects of the order of O(100%). The semileptonic CP asymmetry a s sl due to CP violation in mixing could still be a factor of 130 larger than its robust SM expectation and thus provides a very clean observable for NP searches. Theoretical improvements that are necessary to make full use of the experimental precision are discussed.

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Section: Compare the Decay Bmentioning

confidence: 99%

CP violation in the Bs0 system

2016

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“…It is again a pure penguin decay, which offers a sensitive probe to new sources of CP violation; for a detailed recent theoretical analysis see Ref. [136]. It will be exciting to measure its time-dependent CP-violating rate asymmetry at the LHCb experiment.…”

Section: Further B S Decays To Explore Cp Violationmentioning

confidence: 99%

Rare Decays andCPViolation in theB_sSystem

Borissov

Fleischer

Schune

2013

Annu. Rev. Nucl. Part. Sci.

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CP violating phenomena and rare decays of B 0 s mesons offer interesting probes to test the quark-flavor sector of the Standard Model. In view of plenty of data reported in particular from the Large Hadron Collider, this topic has received a lot of attention in 2012. We give an overview of the the most recent experimental results, new theoretical developments, and discuss the prospects for the future exploration of the B 0 s -meson system.

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“…Such asymmetries provide a method of measuring CP violation in a decay time integrated method that complements the decay time-dependent measurement [9]. These asymmetries are calculated from functions of the angular observables and are expected to be close to zero in the SM [10]. Particle-antiparticle oscillations reduce nonzero triple-product asymmetries due to CP-conserving strong phases, known as "fake" triple-product asymmetries by a factor Γ=ðΔmÞ, where Γ and Δm are the decay rates and oscillation frequencies of the neutral meson system in question.…”

Section: Introductionmentioning

confidence: 99%