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Semileptonic decays of B mesons may be used in many different ways to probe the CKM matrix. Presented here are several recent results from the CLEO II experiment, all involving the analysis or utilization of semileptonic B decays.

High Energy Physics - Experiment · Physics 2007-05-23 K. Kinoshita

Entangled pseudoscalar neutral meson pairs have been used in studying CP violation and searching CPT violation, but almost all the previous works concern $C=-1$ entangled state. Here we consider $C=+1$ entangled state of pseudoscalar…

High Energy Physics - Phenomenology · Physics 2015-06-16 Zhijie Huang , Yu Shi

These lectures are intended to provide an introduction to heavy meson decays and CP violation. The first lecture contains a brief review of the standard model and how the CKM matrix and CP violation arise, mixing and CP violation in neutral…

High Energy Physics - Phenomenology · Physics 2014-11-17 Zoltan Ligeti

We analyze the asymmetry in the partial widths for the decays $B^{\pm} \to M {\bar M} \pi^{\pm}$ ($ M = \pi^+, K ^+, \pi^0, \eta$), which results from the interference of the nonresonant decay amplitude with the resonant amplitude for…

High Energy Physics - Phenomenology · Physics 2008-11-26 B. Bajc , S. Fajfer , R. J. Oakes , T. N. Pham , S. Prelovsek

The Standard Model contains a natural source for CP asymmetries in weak decays, which is described by the KM mechanism. Beyond $\epsilon _K$ it generates only elusive manifestations of CP violation in {\em light-}quark systems. On the other…

High Energy Physics - Phenomenology · Physics 2009-09-25 I. I. Bigi

In the Minimal Supersymmetric Standard Model (MSSM) with complex parameters, one-loop corrections to the decay of a stop into a bottom-quark and a chargino can lead to a CP violating decay rate asymmetry. We perform a detailed numerical…

High Energy Physics - Phenomenology · Physics 2009-09-23 Sebastian M. R. Frank

We extend to the highly degenerate case a recent approach for analyzing the sources of CP violation in baryogenesis models with quasi-degenerate neutrinos. In this approach an expansion of the resummed propagator around the poles is plugged…

High Energy Physics - Phenomenology · Physics 2021-11-24 J. Racker

We point out that the observed CP violation in Bd - bar{Bd} mixing, taking into account the measured ratio Delta Md / Delta Ms, the recently improved lattice value of the non-perturbative parameter BK and an additional effective suppression…

High Energy Physics - Phenomenology · Physics 2008-11-26 Andrzej J. Buras , Diego Guadagnoli

We review the present status of CP violation in the standard model. Subsequently we make an excursion in the future in order to see what we could expect in this field in this and the next decade. We present various strategies for the…

High Energy Physics - Phenomenology · Physics 2009-09-25 A. J. Buras

We consider the prospects for measuring distinctive signatures of the CP-violating phases in the minimal supersymmetric extension of the Standard Model (MSSM) in light of the limits on sparticle masses from searches at the LHC. We use the…

High Energy Physics - Phenomenology · Physics 2020-07-07 A. Arbey , J. Ellis , F. Mahmoudi

We demonstrate how one may identify or constrain possible violation of $CP$, $T$ and $CPT$ symmetries in the $K^0$-$\bar{K^0}$ system in a way as phenomenological and comprehensive as possibie. For this purpose, we first introduce…

High Energy Physics - Phenomenology · Physics 2007-05-23 Y. Kouchi , A. Shinbori , Y. Takeuchi , S. Y. Tsai

After a brief look at CP violation in kaon decays, a short overview of CP violation in the $B$-meson system and of strategies to determine the angles of the unitarity triangles of the CKM matrix is given. Both general aspects and some…

High Energy Physics - Phenomenology · Physics 2011-03-23 Robert Fleischer

We consider CP violating asymmetries that are induced by particle-antiparticle mixing in inclusive channels of neutral $B$ meson decay. Not only are the branching ratios sizable, at the 1% to 50% level, but some of those asymmetries are…

High Energy Physics - Phenomenology · Physics 2016-09-06 Martin Beneke , Gerhard Buchalla , Isard Dunietz

CP-nonconserving effects in the reaction p p-bar -> t b-bar +X -> W^+ b b-bar +X, driven by the supersymmetric CP-odd phase of the stop trilinear soft breaking term, \arg(A_t), are studied. We discuss the CP-nonconserving effects in both…

High Energy Physics - Phenomenology · Physics 2009-10-30 S. Bar-Shalom , D. Atwood , A. Soni

The extraction of CKM-matrix-element information from hadronic B-decays generally suffers from discrete ambiguities, hampering the diagnosis of physics beyond the Standard Model. We show that a measurement of the rate asymmetry, which is…

High Energy Physics - Phenomenology · Physics 2008-11-26 S. Gardner , H. B. O'Connell , A. W. Thomas

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

LHCb has recorded large samples of semileptonic {\textit B} decays. These provide the possibility to study {\textit CP} violation effects in the $B^{0}_s$ and $B^{0}$ systems. Decay-time-integrated or decay-time-dependent asymmetries…

High Energy Physics - Experiment · Physics 2014-11-25 Lucia Grillo

There is growing evidence for deviation from the standard model predictions in the ratios between semi-tauonic and semi-leptonic $B$ decays, known as the $R(D^{(*)})$ puzzle. If the source of this non-universality is new physics, it is…

High Energy Physics - Phenomenology · Physics 2019-01-18 Daniel Aloni , Yuval Grossman , Abner Soffer

The observation of CP violation in meson decays is a testament to the Cabibbo-Kobayashi-Maskawa (CKM) quark mixing paradigm, and an integral part of the Standard Model (SM). The SM also predicts the existence of CP violation in baryon…

High Energy Physics - Phenomenology · Physics 2023-03-07 Shibasis Roy , N. G. Deshpande , Anirban Kundu , Rahul Sinha

In this talk, I review the various measurements that have been made over the years of CP-violating observables in $B$ decays. These include indirect CP asymmetries, direct CP asymmetries, and triple products. All are discussed in the…

High Energy Physics - Phenomenology · Physics 2020-07-14 David London