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Related papers: Precise discussion on T-asymmetry with B-meson dec…

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If new CP violating physics contributes to neutral meson mixing, but its contribution to CP violation in decay amplitudes is negligible, then there is a model independent relation between four (generally independent) observables related to…

High Energy Physics - Phenomenology · Physics 2009-09-02 Yuval Grossman , Yosef Nir , Gilad Perez

Many topics are discussed in b physics including lifetimes, decay mechanisms, determinations of the CKM matrix elements |V_{cb}| and |V_{ub}|, facilities for b quark studies, neutral $B$ meson mixing, rare b decays, hadronic decays and CP…

High Energy Physics - Phenomenology · Physics 2007-05-23 Sheldon Stone

We present a framework to analyze effects of new physics beyond the standard model on $B$-$\bar B$ mixing and $CP$ violation in $B$ decays in a model-independent manner. Assuming that tree level decay amplitudes are dominated by the…

High Energy Physics - Phenomenology · Physics 2009-10-28 T. Goto , N. Kitazawa , Y. Okada , M. Tanaka

A review of CP violation in the $B$ system and strategies to determine the unitarity triangle of the CKM matrix is given. We begin with an introduction to the description of CP violation in the Standard Model of electroweak interactions,…

High Energy Physics - Phenomenology · Physics 2014-11-17 Robert Fleischer

Supersymmetric contributions to time independent asymmetry in $B^0_s \to J/\psi \phi$ process are analyzed in the view of the recent Tevatron experimental measurements. We show that the experimental limits of the mass difference $\Delta…

High Energy Physics - Phenomenology · Physics 2009-11-06 Alakabha Datta , Shaaban Khalil

These lectures present the phenomenology of B meson decays and their impact on our understanding of CP violation in the quark sector, with an emphasis on measurements made at the e+e- B factories. Some of the relevant theoretical ideas such…

High Energy Physics - Experiment · Physics 2007-05-23 R. V. Kowalewski

We consider generation of baryon asymmetry of the universe through $R-$parity violation in a scenario in which out-of-equilibrium condition is satisfied by making the electroweak phase transition to be first order. We study all the…

High Energy Physics - Phenomenology · Physics 2014-11-17 Utpal Sarkar , Rathin Adhikari

Combining the measured B_s mixing with b \to s\ell^+\ell^- rate data, we find a sizable 4 generation t' quark effect is allowed, for example with m_{t'} \sim 300 GeV and V_{t's}^*V_{t'b} \sim 0.025 e^{\pm i 70^\circ}, which could underly…

High Energy Physics - Phenomenology · Physics 2008-11-26 Wei-Shu Hou , Makiko Nagashima , Andrea Soddu

We review the status of the theory and phenomenology of heavy-quark symmetry, exclusive weak decays of $B$ mesons, inclusive decay rates and lifetimes of $b$ hadrons, and CP violation in $B$-meson decays.

High Energy Physics - Phenomenology · Physics 2014-11-17 Matthias Neubert

The minimal supersymmetric extension of the standard model allows for some of the coupling strengths to be complex parameters. The presence of such imaginary phases can lead to violations of time reversal invariance, which can be tested if…

High Energy Physics - Phenomenology · Physics 2009-10-22 E. Christova , M. Fabbrichesi

The starting point of these lectures is an introduction to the weak interactions of quarks and the Standard-Model description of CP violation, where the key element is the Cabibbo--Kobayashi--Maskawa matrix and the corresponding unitarity…

High Energy Physics - Phenomenology · Physics 2007-05-23 Robert Fleischer

In the supersymmetric standard model, the radiative $B$-meson decay $B \to X_s \gamma$ could receive a large contribution from a new source of flavor-changing neutral current, which also violates CP invariance. The CP-conjugate processes…

High Energy Physics - Phenomenology · Physics 2009-10-31 Mayumi Aoki , Gi-Chol Cho , Noriyuki Oshimo

The recent Tevatron result on the top quark forward-backward asymmetry, which deviates from its standard model prediction by 3.4$\sigma$, has prompted many authors to build new models to account for this anomaly. Among the various…

High Energy Physics - Phenomenology · Physics 2015-05-27 Chuan-Hung Chen , Sandy S. C. Law , Run-Hui Li

We present an updated measurement of time-dependent CP-violating asymmetries in neutral B decays with the BABAR detector at the PEP-II asymmetric B Factory at SLAC. This result uses an additional sample of Upsilon(4S) decays collected in…

High Energy Physics - Experiment · Physics 2010-05-28 B. Aubert , BABAR Collaboration

The experimentally established non-zero decay width difference of the B_s meson system gives us access to a mass eigenstate rate asymmetry for each B_s transition. This observable is not only the key ingredient in converting between…

High Energy Physics - Phenomenology · Physics 2014-12-18 Robert Knegjens

We present a preliminary measurement of the time-dependent CP asymmetry for the neutral B-meson decay into the CP = +1 final state KS pi0 pi0, with KS-> pi+ pi- and pi0-> gamma gamma. We use a sample of approximately 227 million B-meson…

High Energy Physics - Experiment · Physics 2007-05-23 B. Aubert , BABAR Collaboration

Measurements of CP asymmetries in B decays will soon be made at $B$ factories and hadron machines. In light of this, we review and update the profile of the CKM unitarity triangle and the resulting CP asymmetries in B decays. This is done…

High Energy Physics - Phenomenology · Physics 2007-05-23 Ahmed Ali , David London

We calculate the effect of new CP violating interactions parameterized by an anomalous $tbW$ coupling on CP-odd observables in B decays. We find that couplings consistent with current bounds induce observable effects in some CP asymmetries…

High Energy Physics - Phenomenology · Physics 2009-10-30 A. Abd El-Hady , G. Valencia

The decay $B^{\pm}\to DK^{\pm}$ followed by the subsequent decay of the $D$ meson into final states involving a neutral kaon can be used to determine the CKM angle $\gamma$. We study CP violation effects due to mixing and decay of the final…

High Energy Physics - Phenomenology · Physics 2015-06-17 Yuval Grossman , Michael Savastio

We discuss several issues related to direct CP violation in rare $B$ meson decays. We review the use of CP asymmetries in extracting information of strong and weak phases, how the experimental data fit into the overall picture, and the…

High Energy Physics - Phenomenology · Physics 2008-08-12 Cheng-Wei Chiang