English
Related papers

Related papers: CP Violation in the B Meson System

200 papers

The CKM mechanism is well established as the dominant mechanism for $CP$ violation, which was first discovered in the neutral kaons in 1964 \cite{ref:cpkaon}. To search for new sources of CP violation, one can exploit a handful of systems…

High Energy Physics - Experiment · Physics 2008-07-31 Chunlei Liu

The standard CKM model can be tested and New Physics detected using only CP-violating phase measurements in B decays. This requires the measurement of a phase factor which is small in the Standard Model, in addition to the usual large…

High Energy Physics - Phenomenology · Physics 2016-09-06 Joao P. Silva , L. Wolfenstein

We discuss the usefulness of the CP violating semi-leptonic asymmetry a_{SL} not only as a signal of new physics, but also as a tool in constraining the CKM parameters. We show that this technique could yield useful results in the first…

High Energy Physics - Phenomenology · Physics 2014-11-17 Robert N. Cahn , Mihir P. Worah

Supersymmetric models with nonuniversal down type squark masses can enrich the chiral structure and CP violating phenomena in $b\to s\gamma$ decays. Direct CP violation in $b\to s \gamma$, mixing induced CP violation in radiative $B_{d,s}$…

High Energy Physics - Phenomenology · Physics 2016-08-25 Chun-Khiang Chua , Xiao-Gang He , Wei-Shu Hou

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

Generically, non-Standard-Model particles contribute to processes with order-one charge-parity (CP) violating phases, as CP is not a fundamental symmetry of nature. The exploration of CP violation becomes therefore a sensitive search for…

High Energy Physics - Phenomenology · Physics 2022-09-30 Avital Dery , Yuval Grossman , Stefan Schacht , Diego Tonelli

We consider the possibility of observing CP violation in quasi-inclusive decays of the type $B^-\to K^- X$, $B^-\to K^{*-} X$, $\bar B^0\to K^- X$ and $\bar B^0\to K^{*-} X$, where $X$ does not contain strange quarks. We present estimates…

High Energy Physics - Phenomenology · Physics 2014-11-17 T. E. Browder , A. Datta , X. -G. He , S. Pakvasa

Recent experimental results on CP violation in the study of B meson decays are reviewed. The emphasis is put on the recent measurements of the CP parameter sin2beta by the BABAR and BELLE experiments at asymmetric B factories, which…

High Energy Physics - Experiment · Physics 2007-05-23 Gautier Hamel de Monchenault

The penguin loop-suppressed $B\to\phi K$ decays are highly sensitive to contributions of hypothetical heavy new particles. Particularly interesting probes for testing the Standard Model and revealing such phenomena are provided by CP…

High Energy Physics - Phenomenology · Physics 2026-03-16 Robert Fleischer , Jelle Groot , K. Keri Vos

Mixing and CP violation in charm meson decays provide a unique probe of possible physics beyond the standard model. In this paper, we give a brief review of the current measurements from the BABAR experiment.

High Energy Physics - Experiment · Physics 2015-05-20 Chunhui Chen

We review the highlights of quark mixing, particle-antiparticle mixing, CP violation and rare K- and B-decays in the Standard Model. The top quark discovery, the precise measurement of its mass, the improved knowledge of the couplings…

High Energy Physics - Phenomenology · Physics 2016-11-03 Andrzej J. Buras , Robert Fleischer

Measuring phases in the Cabibbo-Kobayashi-Maskawa matrix through CP asymmetries in B decays is a major goal of current and future experiments. Methods based on charge-conjugation and isospin symmetries involve very little theoretical…

High Energy Physics - Phenomenology · Physics 2008-11-26 Michael Gronau

There has been a lot of recent interest in the experimental hints of CP violation in B_{d,s}^0 mixing, which would be a clear signal of beyond the standard model physics (with higher significance). We derive a new relation for the mixing…

High Energy Physics - Phenomenology · Physics 2013-05-30 Marat Freytsis , Zoltan Ligeti , Sascha Turczyk

We make a systematic analysis of the effects of new physics in the B decay amplitudes on the CP asymmetries in neutral B decays. Although these are expected to be smaller than new physics effects on the mixing amplitude, they are easier to…

High Energy Physics - Phenomenology · Physics 2016-11-03 Yuval Grossman , Mihir P. Worah

CP violation in H^\pm decays into the three possible decay modes into ordinary particles, 1) H^\pm \to tb, 2) H^\pm \to \nu \tau and 3) H^\pm \to W^\pm h^0 is considered. Analytic expressions and numerical results for the CP violating decay…

High Energy Physics - Phenomenology · Physics 2009-04-14 Ekaterina Christova , Helmut Eberl , Elena Ginina

This report describes an observation of mixing-induced CP violation and a measurement of the CP violation parameter, sin(2phi_1), with the Belle detector at the KEKB asymmetric e+e- collider. Using a data sample of 29.1 fb-1 recorded on the…

High Energy Physics - Experiment · Physics 2008-11-26 Belle Collaboration , K. Abe

We comment on the implications of the recently measured CP asymmetry in B --> Phi K_S decay. The data disfavor the Standard Model at 2.7 sigma and -if the trend persists in the future with higher statistics - require the existence of CP…

High Energy Physics - Phenomenology · Physics 2009-11-07 Gudrun Hiller

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

We present a measurement of CP-violation parameters in the b->sq q penguin transitions (q=s,u,d) based on a 78/fb data sample collected at the Y(4S) resonance with the Belle detector at the KEKB energy-asymmetric e+e- collider. One neutral…

High Energy Physics - Experiment · Physics 2010-04-06 K. Abe

We investigate allowed regions in observable space of B --> pi K, B_d --> pi^+pi^- and B_s --> K^+K^- decays, characterizing these modes in the Standard Model. After a discussion of a new kind of contour plots for the $B\to\pi K$ system, we…

High Energy Physics - Phenomenology · Physics 2011-03-23 Robert Fleischer , Joaquim Matias
‹ Prev 1 4 5 6 7 8 10 Next ›