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Recent evidence for anomalous CP violation in B-meson oscillations can be interpreted as resulting from CPT violation. This yields the first sensitivity to CPT violation in the B_s^0 system, with the relevant coefficient for CPT violation…

High Energy Physics - Phenomenology · Physics 2010-12-09 Alan Kostelecky , R. Van Kooten

We propose that the cascade decay $\Lambda_b \to D(\to K^+\pi^-) N(\to p\pi^-)$ may serve as the discovery channel for baryonic CP violation. This decay chain is contributed by, dominantly, the amplitudes with the intermediate $D$ state as…

High Energy Physics - Phenomenology · Physics 2023-12-11 Yin-Fa Shen , Jian-Peng Wang , Qin Qin

We discuss the implications of CP violation as well as final state interaction phases in the experimental search for $D^0-\bar{D}^0$ mixing. At the present level of sensitivity, these are not yet a significant systematic experimental…

High Energy Physics - Phenomenology · Physics 2009-10-28 T. E. Browder , S. Pakvasa

The existence of $D^0-\overline{D^0}$ mixing at a detectable level requires new physics, which effectively yields a $\Delta c = 2$ superweak interaction. In general this interaction may involve significant CP violation. For small values of…

High Energy Physics - Phenomenology · Physics 2009-10-28 Lincoln Wolfenstein

The decay $B^0\rightarrow D^{*+}D^-$ is favorable mode for studying $CP$ violation in the interference between mixing and decay for $B^0$ and $\bar{B}^0$ mesons. The latest analysis of the $CP$ parameters has been performed by the LHCb…

High Energy Physics - Phenomenology · Physics 2023-04-13 Behnam Mohammadi , Elnaz Amirkhanlou

B factories measure the CP violation parameter of B^0 Bbar^0 mixing and decay. Hadron colliders measure the dimuon charge asymmetry of an admixture of B hadrons. In this note we discuss a subtle point on how the CP violation parameter of…

High Energy Physics - Experiment · Physics 2007-05-23 B. Hoeneisen

We present a general model-independent and rephase-invariant formalism that cleanly relates CP and CPT noninvariant observables to the fundamental parameters. Different types of CP and CPT violations in the K^0-, B^0-, B_s^0- and…

High Energy Physics - Phenomenology · Physics 2011-09-13 K. C. Chou , W. Palmer , E. A. Paschos , Y. L. Wu

A review of CP violation in the $B$ system and strategies to determine the unitarity triangle of the CKM matrix is given. We begin with an introduction to the description of CP violation in the Standard Model of electroweak interactions,…

High Energy Physics - Phenomenology · Physics 2014-11-17 Robert Fleischer

$B^0$ mixing measurements from the Tevatron Run I data are reported. These include time-integrated measurements of the average mixing parameter $\bar{\chi}$, six time-dependent oscillation measurements of $\Delta m_d$, and a time-dependent…

High Energy Physics - Experiment · Physics 2007-05-23 G. Bauer

We present results on CP violation from approximately 2.8 fb^{-1} of data collected by the D0 Experiment at the Fermilab Tevatron. The results presented are: (i) an improved measurement of the B_s^0 CP-violating phase from a flavor-tagged…

High Energy Physics - Experiment · Physics 2008-10-07 J. Ellison

We describe in detail a previously published measurement of CP violation induced by B0-anti B0 oscillations, based on an integrated luminosity of 425.7 fb-1 collected by the BABAR experiment at the PEPII collider. We apply a novel technique…

High Energy Physics - Experiment · Physics 2016-02-17 The BABAR Collaboration

We summarize the results of two papers in which we have studied CP violation in inclusive and exclusive decays b -> d e^+e^-. Two CP-violating effects are calculated: the partial rate asymmetry between b and \bar{b} decay, and the asymmetry…

High Energy Physics - Phenomenology · Physics 2007-05-23 F. Krüger , L. M. Sehgal

The $B^0_{s,d} \to J/\psi \eta^{(\prime)}$ decays provide new terrain for exploring CP violation. After briefly discussing $\eta$-$\eta'$ mixing, we analyse the effective lifetimes and CP-violating observables of the $B_s$ channels, which…

High Energy Physics - Phenomenology · Physics 2012-11-21 Robert Fleischer , Robert Knegjens , Giulia Ricciardi

We demonstrate how one may identify or constrain possible violation of $CP$, $T$ and $CPT$ symmetries in the $K^0$-$\bar{K^0}$ system in a way as phenomenological and comprehensive as possibie. For this purpose, we first introduce…

High Energy Physics - Phenomenology · Physics 2007-05-23 Y. Kouchi , A. Shinbori , Y. Takeuchi , S. Y. Tsai

We describe measurements of CP and CPT violation parameters in B^0B^0bar oscillations, performed at BaBar by using BBbar events collected at the Y(4S) mass peak. These are obtained from two different B-reconstruction methods, namely:…

High Energy Physics - Experiment · Physics 2007-05-23 R. Covarelli

It is shown that in R-parity violating models of supersymmetry, the CP violation observed in the kaon system could arise purely from the R-parity violating scalar interactions (A-terms), with no CP violation in the CKM matrix. The direct CP…

High Energy Physics - Phenomenology · Physics 2009-10-30 S. A. Abel

The phenomenological description of the neutral B meson system is proposed in terms of the fundamental CP-violating observables and within a rephasing invariant formalism. This generic formalism can select the time-dependent and…

High Energy Physics - Phenomenology · Physics 2011-04-12 D. Cocolicchio , M. Viggiano

Establishing CP violation in B0 (bar{B0}) --> l+ l- decays requires a measurement of polarization of the final lepton pair, or a precise determination of the B0 --> l+ l- and bar{B0} --> l+ l- rates. We first argue that if the amplitudes of…

High Energy Physics - Phenomenology · Physics 2014-11-18 Piotr H. Chankowski , Jan Kalinowski , Zbigniew Was , Malgorzata Worek

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 present the most recent set of world averages for D0-D0bar mixing and CP violation parameters, as obtained by the Heavy Flavor Averaging Group from a global fit to various measurements. The values obtained for the mixing parameters when…

High Energy Physics - Experiment · Physics 2009-11-10 A. J. Schwartz