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Related papers: Framework for Identification of Neutral B Mesons

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We present updated measurements of time-dependent CP asymmetries in fully reconstructed neutral B decays containing a charmonium meson. The measurements reported here use a data sample of (465+/-5) million Upsilon(4S)->BBbar decays…

High Energy Physics - Experiment · Physics 2010-04-12 The BABAR Collaboration , B. Aubert

One of the key elements in the testing of the Standard-Model description of CP violation through $B$-meson decays is the direct determination of the angle $\gamma$ of the unitarity triangle in a variety of ways. We give a brief overview of…

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

We present a measurement of the time-dependent CP-violating asymmetries in neutral B decays to the $\pi^+\pi^-$ CP eigenstate, and an updated measurement of the charge asymmetry in $B^0\to K^+\pi^-$ decays. In a sample of 33 million…

High Energy Physics - Experiment · Physics 2008-11-26 The BABAR Collaboration , H. Aubert

We present studies from the LHCb experiment leading to the measurement of the weak phase {\phi}s. At first, flavor tagging is established by measuring the B0s oscillation frequency \Deltams. Then, flavor tagging is used to perform a…

High Energy Physics - Experiment · Physics 2019-08-13 Till Moritz Karbach

We review the status of the Cabibbo-Kobayashi-Maskawa (CKM) matrix elements and the CP-violating phases in the CKM-unitarity triangle. The emphasis in these lecture notes is on $B$-meson physics, though we also review the current status and…

High Energy Physics - Phenomenology · Physics 2007-05-23 Ahmed Ali

The precise connection between the theoretical T, CP, CPT asymmetries, in terms of transition probabilities between the filtered neutral meson $B_d$ states and the experimental asymmetries between the double decay rate intensities for…

High Energy Physics - Phenomenology · Physics 2016-07-20 Jose Bernabeu , Francisco J. Botella , Miguel Nebot

While the Kobayashi--Maskawa model of CP violation passed its first crucial precision test in $B\to J/\psi K_S$, other CP asymmetries in $B$ and $B_s$ decays will have to be measured in order to critically test and overconstrain the model…

High Energy Physics - Phenomenology · Physics 2007-05-23 Michael Gronau

The B^0_s meson is a bound state of b and s type quarks. A CP violation parameter, \beta_s, of that system is the analogue of the parameter \beta measured precisely at the B factories in B^0 decays. The standard model predicts, robustly and…

High Energy Physics - Experiment · Physics 2009-03-19 J. Boudreau

We consider the decays of a correlated neutral-meson--antimeson state with C-parity +1. We show that there is CPT noninvariance in the mixing of the neutral mesons if, for any two decay modes f and g, the decay rate has a component R_A…

High Energy Physics - Phenomenology · Physics 2010-02-03 G. V. Dass , W. Grimus , L. Lavoura

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 Cabibbo-Kobayashi-Maskawa matrix is a key element to describe flavour dynamics in the Standard Model. With only four parameters, this matrix is able to describe a large range of phenomena in the quark sector, such as CP violation and…

High Energy Physics - Experiment · Physics 2017-11-07 Sébastien Descotes-Genon , Patrick Koppenburg

We present results on semileptonic B decays obtained with the BABAR detector. The large data set accumulated at the PEP-II asymmetric-energy B-Factory allows a new measurement technique, where the hadronic decay of one B meson is fully…

High Energy Physics - Experiment · Physics 2010-11-23 Urs Langenegger

In Standard Model, CP violation arises from an irreducible complex phase in the quark mixing matrix, now under the name Cabibbo-Kobayashi-Maskawa matrix. This description has shown remarkably overall agreement with various experimental…

High Energy Physics - Phenomenology · Physics 2014-08-06 Wei Wang

The unitarity triangles of the $3\times 3$ Cabibbo-Kobayashi-Maskawa (CKM) matrix are studied in a systematic way. We show that the phases of the nine CKM rephasing invariants are indeed the outer angles of the six unitarity triangles and…

High Energy Physics - Phenomenology · Physics 2010-11-01 Dan-di WU , Zhi-zhong XING

We present a measurement of the time-dependent CP-violating asymmetries in decays of neutral B mesons to the final states D*-+ pi+-, using approximately 232 million BBbar events recorded by the BABAR experiment at the PEP2 e+e- storage…

High Energy Physics - Experiment · Physics 2010-03-19 The BABAR Collaboration , B. Aubert

Employing an effective formalism for decaying system we are able to investigate Heisenberg's uncertainty relation for observables measured at accelerator facilities. In particular we investigate the neutral K--meson system and show that,…

High Energy Physics - Phenomenology · Physics 2015-05-27 Beatrix C. Hiesmayr

After reviewing techniques for extracting clean information on CP-violating phase angles from $B$ decays, we explain the rules for finding decay modes that can probe the phase angle $\gamma$ of the unitarity triangle. We identify the more…

High Energy Physics - Phenomenology · Physics 2009-09-25 R. Aleksan , B. Kayser , D. London

We propose for the first time a method to perform analysis of time-dependent CP asymmetries in charm by using both, correlated and un-correlated $D^0$ mesons. Here we consider the decay channels $D^0\to K^+ K^-$ and $D^0\to \pi^+ \pi^-$.…

High Energy Physics - Phenomenology · Physics 2011-09-22 Gianluca Inguglia

We present a precise measurement of the standard model CP-violation parameter sin(2phi1), the direct CP violation parameter |lambda|, the lifetimes of charged and neutral B mesons and their ratio, and the B0-B0bar mixing parameter Delta m_d…

High Energy Physics - Experiment · Physics 2014-11-17 The Belle Collaboration , K. Abe

We present the contributions of new CP phases in CP asymmetries of two-body neutral $B_s$ decays coming from a left--right model with spontaneous CP violation. Large deviations from the Standard Model predictions can be accommodated in a…

High Energy Physics - Phenomenology · Physics 2007-05-23 J. Matias