English
Related papers

Related papers: T and CPT in B-Factories

200 papers

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

Further experimental and theoretical studies of the physics of flavor and CP violation are well motivated. Within the supersymmetric framework, higher precision measurements will allow to explore classes of models with stronger degree of…

High Energy Physics - Phenomenology · Physics 2009-11-07 Zoltan Ligeti , Yosef Nir

We present an analysis of low energy CP violating observables in the Minimal Supersymmetric Standard Model (MSSM). We focus on the predictions of CP violation in b -> s transitions in the framework of a flavor blind MSSM, where the CKM…

High Energy Physics - Phenomenology · Physics 2015-05-14 Wolfgang Altmannshofer

We introduce a method for the study of CP-violating asymmetries in tagged states of neutral $B$ mesons with arbitrary coherence properties. A set of time-dependent measurements is identified which completely specifies the density matrix of…

High Energy Physics - Phenomenology · Physics 2010-11-01 Michael Gronau , Jonathan L. Rosner

One distinguishes between "true" CP violating triple product (TP) asymmetries which require no strong phases and "fake" asymmetries which are due to strong phases but require no CP violation. So far a single true TP asymmetry has been…

High Energy Physics - Phenomenology · Physics 2015-05-28 Michael Gronau , Jonathan L. Rosner

The status of CP violation and the CKM matrix is reviewed. Direct CP violation in B decay has been established and the measurement of sin(2beta) in \psi K modes reached 5% accuracy. I discuss the implications of these, and of the possible…

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

We review the information on the CKM matrix elements, unitarity triangle and CP-violating phases $\alpha, \beta$ and $\gamma$ in the standard model which will be measured in the forthcoming experiments at B factories, HERA-B and hadron…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. Ali

After the establishment of the Kobayashi-Maskawa mechanism of CP violation at the two B factories, possibilities to increase the integrated luminosity by two orders of magnitude have been investigated, since it seems to be the amount needed…

High Energy Physics - Experiment · Physics 2009-03-26 Mikihiko Nakao

We present an overview of recent work on flavour physics in the presence of a sequential fourth generation. We will discuss shortly the constraints on the new parameters and in the reminder present predictions for observables like Br(B_s ->…

High Energy Physics - Phenomenology · Physics 2010-12-07 Tillmann Heidsieck

The new proposals for high luminosity B/Flavor factories, near and on top of the $\Upsilon$ resonances, allow for a detailed investigation of CP-violation in the $\tau$-pair production. In particular, bounds on the tau electric dipole…

High Energy Physics - Phenomenology · Physics 2008-11-26 J. Bernabeu G. A. Gonzalez-Sprinberg J. Vidal

The discrete symmetries C, P and CP are known to be violated by the weak interaction. It is possible to probe the breaking of these symmetries using asymmetries constructed from triple products based on the decay of some particle M to a…

High Energy Physics - Experiment · Physics 2015-06-16 Adrian J. Bevan

We describe a flavor tagging algorithm used in measurements of the CP violation parameter sin2phi_1 at the Belle experiment. Efficiencies and wrong tag fractions are evaluated using flavor-specific B meson decays into hadronic and…

We consider various integrated lepton charge-energy asymmetries and azimuthal asymmetries as tests of CP violation in the process $e^-e^+ \to W^-W^+$. These asymmetries are sensitive to different linear combinations of the CP violating form…

High Energy Physics - Phenomenology · Physics 2009-09-01 Darwin Chang , Wai-Yee Keung , Ivan Phillips

There are strong similarities between charge-parity (CP) violating observables in hadronic $B$ decays (in particular $\Delta A^-_{\rm CP}$ in $B\to K\pi$) and direct CP violation in Kaon decays ($\epsilon^\prime$): All these observables are…

High Energy Physics - Phenomenology · Physics 2020-02-05 Andreas Crivellin , Christian Gross , Stefan Pokorski , Leonardo Vernazza

Certain types of asymmetries in neutral meson physics have not been treated properly, ignoring the difference of normalization factors with an assumption of the equality of total decay width. Since the corrected asymmetries in $B^0$ meson…

High Energy Physics - Phenomenology · Physics 2009-11-07 J. C. Yoon

We consider the time-dependent analysis of rare $B_d$ and $B_s$ decays mediated by $b\to s \nu \bar \nu$ transitions. The inclusion of time evolution allows us to construct novel observables with specific sensitivity to CP-odd phases in…

High Energy Physics - Phenomenology · Physics 2023-01-25 Sébastien Descotes-Genon , Svjetlana Fajfer , Jernej F. Kamenik , Martín Novoa-Brunet

After an introduction to the Standard-Model description of CP violation, we turn to the main focus of these lectures, the B-meson system. Since non-leptonic B decays play the key role for the exploration of CP violation, we have to discuss…

High Energy Physics - Phenomenology · Physics 2017-08-23 Robert Fleischer

The basic feature of the measurement of CPT violation in the neutral kaon system is overviewed beginning with noting the physical implication of CPT violation. After describing $K^0-\bar{K}^0$ system at length, how CPT test is possible is…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. Hayakawa

The focus of our considerations is the B-meson system, which will provide stringent tests of the Kobayashi-Maskawa mechanism of CP violation in this decade. After a classification of the main possible strategies to achieve this goal, we…

High Energy Physics - Phenomenology · Physics 2010-11-23 Robert Fleischer

In this letter we reinterpret and reanalyze the available data of the B meson factories showing the existence of direct experimental evidence of time reversal invariance violation in B mesons. This reinterpretation consists of using the…

High Energy Physics - Phenomenology · Physics 2008-11-26 Ezequiel Alvarez , Alejandro Szynkman
‹ Prev 1 3 4 5 6 7 10 Next ›