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Within a specific texture of the quark mass matrix the notion of a maximal violation of the $CP$ symmetry can be defined. The experimental constraints from weak decays imply that in reality one is close to the case of maximal $CP$…

High Energy Physics - Phenomenology · Physics 2010-11-01 Harald Fritzsch , Zhi-zong Xing

I review recent progress in theoretical calculations related to the CKM unitarity triangle. After briefly discussing hints for new physics in B_d-B_d-bar mixing and B_s-B_s-bar mixing I present three topics of MSSM flavor physics: First I…

High Energy Physics - Phenomenology · Physics 2022-03-02 Ulrich Nierste

This proceeding reports a selection of recent experimental results concerning $C\!P$ violation in the sectors of $B^0$ and $B^\pm$ mesons. They were published within the last two years by the Belle, Belle II and LHCb collaborations. The…

High Energy Physics - Experiment · Physics 2022-08-08 Daniele Manuzzi

In the neutral B meson system, it is possible to measure the CKM angle alpha using the decay mode b -> u ubar d in the presence of pollution from gluonic b -> d penguin decays. Here the recent status of the measurements of CP-violating…

High Energy Physics - Experiment · Physics 2010-11-23 H. Sagawa

We discuss the problem of theoretical uncertainties in the combination of observables related to the CKM matrix elements and propose a statistically sensible method for combining them. The overall fit is performed on present data, and…

High Energy Physics - Phenomenology · Physics 2007-05-23 S. Plaszczynski , M. H Schune

These lectures give an introduction and the current status of flavour physics in the quark sector, with special attention to the CKM matrix and CP violation. We describe the measurements which contribute to the determination of the CKM…

High Energy Physics - Phenomenology · Physics 2009-09-29 Achille Stocchi

The BABAR collaboration measurements of the B -> pipi, B -> rhopi and B -> rhorho decays are presented. New results, from a 113 fb-1 data sample, on the time-dependent CP asymmetries of the longitudinally polarized component of the B0 ->…

High Energy Physics - Experiment · Physics 2007-05-23 Lydia Roos

Current experimental data indicate that two unitarity triangles of the CKM quark flavor mixing matrix V are almost the right triangles with \alpha \approx 90^\circ. We find that \alpha = 90^\circ actually points to {\rm…

High Energy Physics - Phenomenology · Physics 2009-08-17 Zhi-zhong Xing

Anticipating improved determinations of m_t, |V_ub/V_cb|, B_K and F_B \sqrt{B_B} in the next five years we make an excursion in the future in order to find a possible picture of the unitarity triangle, of quark mixing and of CP-violation…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. J. Buras , M. E. Lautenbacher , G. Ostermaier

We derive model independent lower bounds on the CKM parameters (1-rhobar) and etabar as functions of the mixing-induced CP asymmetry S in B-> pi+ pi- and sin(2 beta) from B->psi K_S. The bounds do not depend on specific results of…

High Energy Physics - Phenomenology · Physics 2008-11-26 Gerhard Buchalla , A. Salim Safir

The study of CP violation in $B$-meson decays has already reached a high level of precision, which will be pushed even higher in the future era of Belle-II and the LHCb upgrade. %Important probes of CP violation are the $B_d^0$ and $B_s^0$…

High Energy Physics - Phenomenology · Physics 2018-07-24 K. Keri Vos

These lectures give an up to date description of CP violation and rare decays of K and B mesons and consist of ten chapters: i) Grand view of the field including CKM matrix and the unitarity triangle, ii) General aspects of the theoretical…

High Energy Physics - Phenomenology · Physics 2017-08-23 Andrzej J. Buras

We give a status report on measurements of the angle phi_2 (alpha) of the CKM unitarity triangle (UT) and the so-called Kpi puzzle. Results presented are mostly from the two B-factory experiments, Belle and BaBar.

High Energy Physics - Experiment · Physics 2011-10-06 Gagan B. Mohanty

Overconstraining the CKM unitarity triangle with precision measurements of its angles continues to test the validity of the Standard Model. One of these angles, gamma/phi_3, has been measured by studying B+- -> D K+- decays, where D = D0 or…

High Energy Physics - Experiment · Physics 2019-08-13 Peter Zweber

The system of $B^0_s\to D_s^\mp K^\pm$ decays offers a theoretically clean determination of the angle $\gamma$ of the Unitarity Triangle. A corresponding LHCb analysis resulted in a surprisingly large result, which is in tension with other…

High Energy Physics - Phenomenology · Physics 2022-09-21 Robert Fleischer , Eleftheria Malami

Because the Bd -> J/psi Ks asymmetry determines only sin(2 beta), a discrete ambiguity in the true value of beta remains. This note reviews how the ambiguity can be removed. Extractions of the CKM angle alpha are discussed next. Some of the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Isard Dunietz

An analysis of the CKM matrix parameters within the {\it R}fit approach is presented using updated input values with special emphasis on the recent $\sin{2\beta}$ measurements from BABAR and Belle. The QCD Factorisation Approach describing…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. Höcker , H. Lacker , S. Laplace , F. Le Diberder

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

Using primarily experimental inputs for S(B -> psi Ks), Delta M_Bs, Delta M_Bd, BR(B -> tau nu) and epsilon_K along with necessary inputs from the lattice, we find that the measured value of sin(2 beta) is smaller than expectations of the…

High Energy Physics - Phenomenology · Physics 2011-06-27 E. Lunghi , A. Soni

With the help of the light-quark triangle, which is essentially congruent to the rescaled unitarity triangle for a variety of textures of the quark mass matrices, we calculate the CP-violating quantity \sin 2\beta and the ratio of |V_{ub}|…

High Energy Physics - Phenomenology · Physics 2010-11-23 Harald Fritzsch , Zhi-zhong Xing
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