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Related papers: CP Violation and Quark Mixing

200 papers

We confront the new physics models with extra iso-singlet down quarks in the new CP violation experimental era with $\sin{(2\beta)}$ and $\epsilon'/\epsilon$ measurements, $K^+ \to \pi^+ \nu \bar{\nu}$ events, and $x_s$ limits. The…

High Energy Physics - Phenomenology · Physics 2010-11-23 Donovan Hawkins , Dennis Silverman

CP violation in the field of $B$ physics is a crucial topic for exploring the quark sector and search for New Physics, both for theorists and experimentalists. CP violation manifests itself in various ways and in this presentation, we will…

High Energy Physics - Phenomenology · Physics 2024-02-16 Eleftheria Malami

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 study of $C\!P$ violation in decays of beauty- and charm-hadrons provides a fundamental test of the predictions of the Standard Model (SM) and represents a sensitive probe to search for physics effects that cannot be described within…

High Energy Physics - Experiment · Physics 2017-09-04 Francesca Dordei

The CKM matrix describing quark mixing with three generations can be parameterized by three Euler mixing angles and one CP violating phase. In most of the parameterizations, the CP violating phase chosen is not a directly measurable…

High Energy Physics - Phenomenology · Physics 2015-06-12 Guan-Nan Li , Hsiu-Hsien Lin , Dong Xu , Xiao-Gang He

I point out that $B \to X_q \l^+ \l^-$ decays $(q = s, d)$ are sensitive probes of possible violation of CKM unitarity. I compute the decay rates and asymmetries in a minimal extension of the Standard Model containing an additional…

High Energy Physics - Phenomenology · Physics 2022-03-02 L. T. Handoko

We discuss precision tests of the standard model in radiative and semileptonic rare B-decays and CP-violating asymmetries, and possible signatures of supersymmetry in these processes. Motivated by current data, and with an eye on the…

High Energy Physics - Phenomenology · Physics 2017-08-23 A. Ali

The CKM matrix is the only source of CP violation in the Standard Model.Heavy-flavour decays provide an ideal laboratory to test the CKM mechanism. Some recent highlights in CP violation in heavy-flavour decays from the LHCb and Belle II…

High Energy Physics - Experiment · Physics 2023-10-27 Yuehong Xie

Simply based on CP arguments, we argue against a Standard Model explanation of the baryon asymmetry of the universe in the presence of a first order phase transition. A CP-asymmetry is found in the reflection coefficients of quarks hitting…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. B. Gavela , P. Hernández , J. Orloff , O. Pène

I review the status of CP violation in the Standard Model from the combination of flavour constraints within the CKMfitter frequentist approach and I describe studies of New Physics restricted to the Delta F=2 sector to explain recent…

High Energy Physics - Phenomenology · Physics 2015-06-11 Sébastien Descotes-Genon

The CP-violating asymmetries in the exclusive decay B->K^*l^+l^- (l=e,mu,tau) are predicted to be exceedingly small in the standard model (SM), thereby offering an opportunity to assess various new-physics scenarios. We derive quantitative…

High Energy Physics - Phenomenology · Physics 2011-03-23 F. Krüger , E. Lunghi

Flavour mixing and CP violation as measured in weak decays and mixing of neutral mesons are a fundamental tool to test the Standard Model (SM) and to search for new physics. New analyses performed at the LHC experiment open an unprecedented…

We study CP asymmetries in rare B decays within supersymmetry with a U(2)^3 flavour symmetry, motivated by the SUSY flavour and CP problems, the hierarchies in the Yukawa couplings and the absence so far of any direct evidence for SUSY.…

High Energy Physics - Phenomenology · Physics 2015-05-30 Riccardo Barbieri , Paolo Campli , Gino Isidori , Filippo Sala , David M. Straub

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

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

The possibility to test the unitarity triangle of CKM matrix is examined by using the semileptonic rare $B$ decays, $B \rightarrow X_q \, \l^+ \, \l^-$ with $q = d, s$ and $\l$'s are leptons. The discussion is emphasized on the CP asymmetry…

High Energy Physics - Phenomenology · Physics 2007-05-23 L. T. Handoko

I review CP violation in the standard model (SM). I also describe the predictions for CP violation in the B system, along with signals for physics beyond the SM. I stress the numerous contributions of Pat O'Donnell to this subject. Finally,…

High Energy Physics - Phenomenology · Physics 2009-11-10 David London

One of the major challenges of particle physics has been to gain an in-depth understanding of the role of quark flavor and measurements and theoretical interpretations of their results have advanced tremendously: apart from masses and…

High Energy Physics - Phenomenology · Physics 2014-11-20 M. Antonelli , D. M. Asner , D. Bauer , T. Becher , M. Beneke , A. J. Bevan , M. Blanke , C. Bloise , M. Bona , A. Bondar , C. Bozzi , J. Brod , A. J. Buras , N. Cabibbo , A. Carbone , G. Cavoto , V. Cirigliano , M. Ciuchini , J. P. Coleman , D. P. Cronin-Hennessy , J. P. Dalseno , C. H. Davies , F. DiLodovico , J. Dingfelder , Z. Dolezal , S. Donati , W. Dungel , U. Egede , G. Eigen , R. Faccini , T. Feldmann , F. Ferroni , J. M. Flynn , E. Franco , M. Fujikawa , I. K. Furic , P. Gambino , E. Gardi , T. J. Gershon , S. Giagu , E. Golowich , T. Goto , C. Greub , C. Grojean , D. Guadagnoli , U. A. Haisch , R. F. Harr , A. H. Hoang , T. Hurth , G. Isidori , D. E. Jaffe , A. Jüttner , S. Jäger , A. Khodjamirian , P. Koppenburg , R. V. Kowalewski , P. Krokovny , A. S. Kronfeld , J. Laiho , G. Lanfranchi , T. E. Latham , J. Libby , A. Limosani , D. Lopes Pegna , C. D. Lu , V. Lubicz , E. Lunghi , V. G. Lüth , K. Maltman , W. J. Marciano , E. C. Martin , G. Martinelli , F. Martinez-Vidal , A. Masiero , V. Mateu , F. Mescia , G. Mohanty , M. Moulson , M. Neubert , H. Neufeld , S. Nishida , N. Offen , M. Palutan , P. Paradisi , Z. Parsa , E. Passemar , M. Patel , B. D. Pecjak , A. A. Petrov , A. Pich , M. Pierini , B. Plaster , A. Powell , S. Prell , J. Rademaker , M. Rescigno , S. Ricciardi , P. Robbe , E. Rodrigues , M. Rotondo , R. Sacco , C. J. Schilling , O. Schneider , E. E. Scholz , B. A. Schumm , C. Schwanda , A. J. Schwartz , B. Sciascia , J. Serrano , J. Shigemitsu , I. J. Shipsey , A. Sibidanov , L. Silvestrini , F. Simonetto , S. Simula , C. Smith , A. Soni , L. Sonnenschein , V. Sordini , M. Sozzi , T. Spadaro , P. Spradlin , A. Stocchi , N. Tantalo , C. Tarantino , A. V. Telnov , D. Tonelli , I. S. Towner , K. Trabelsi , P. Urquijo , R. S. Van de Water , R. J. Van Kooten , J. Virto , G. Volpi , R. Wanke , S. Westhoff , G. Wilkinson , M. Wingate , Y. Xie , J. Zupan

We study a decay rate asymmetry of the top quark in the supersymmetric standard model, taking into account the constraints from the electric dipole moments of the neutron and the electron. One CP-violating phase contained in the…

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

It is pointed out that the recent measurement of the angle $\gamma$ of the unitarity triangle, providing irrefutable evidence for a complex Cabibbo-Kobayashi-Maskawa (CKM) matrix, presents a great challenge for supersymmetric models with…

High Energy Physics - Phenomenology · Physics 2010-04-05 G. C. Branco , D. Emmanuel-Costa , J. C. Romao