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CP violation in B decays provides a powerful tool to probe physics from beyond the Standard Model. A theoretical overview of recent developments of benchmark channels is given, ranging from non-leptonic to rare leptonic and semileptonic…

High Energy Physics - Phenomenology · Physics 2024-02-02 Robert Fleischer

CP violation is an excellent tool for probing flavor dynamics as we learnt first with $K_L \to 2 \pi$ and later also with the weak decays of beauty mesons. LHCb 2019 data have shown CP violation for the first time in $D^0\to K^-K^+$ vs.…

High Energy Physics - Phenomenology · Physics 2019-12-11 Xiao-Dong Shi , Xian-Wei Kang , Ikaros Bigi , Wei-Ping Wang , Hai-Ping Peng

Motivated by recent LHCb measurements of CP violation in $\Lambda_b$ three-body decays, we conduct an analysis of CP asymmetry in three-body decays of bottom baryons utilizing U-spin symmetry. We first develop a convenient representation…

High Energy Physics - Phenomenology · Physics 2024-11-28 Wei Wang , Zhi-Peng Xing , Zhen-Xing Zhao

We analyze the extraction of weak phases from CP violation in $B\to\pi^+\pi^-$ decays. By combining the information on mixing induced CP violation in $B\to\pi^+\pi^-$, namely $S_{\pi\pi}$, with the precision observable $\sin 2\beta$…

High Energy Physics - Phenomenology · Physics 2010-11-23 A. Salim Safir

It is well known that observing CP violation in many-body decays could provide strong evidence for physics beyond the Standard Model. Many searches have been carried out; however, no 5sigma evidence for CP violation has yet been found in…

High Energy Physics - Experiment · Physics 2011-10-25 Mike Williams

The observation of a sizable CP asymmetry in the inclusive decays B -> Xs gamma would be a clean signal of New Physics. In the Standard Model, this asymmetry is below 1 % in magnitude. In extensions of the Standard Model with new…

High Energy Physics - Phenomenology · Physics 2009-10-31 Matthias Neubert

We study possible effects of new physics in CP asymmetries in two-body $B_s$ decays in left-right models with spontaneous CP violation. Considering the contributions of new CP phases to the $B_s$ mixing as well as to the penguin dominated…

High Energy Physics - Phenomenology · Physics 2011-03-23 G. Barenboim , J. Bernabeu , J. Matias , M. Raidal

Entangled pseudoscalar neutral meson pairs have been used in studying CP violation and searching CPT violation, but almost all the previous works concern $C=-1$ entangled state. Here we consider $C=+1$ entangled state of pseudoscalar…

High Energy Physics - Phenomenology · Physics 2015-06-16 Zhijie Huang , Yu Shi

The observation of CP violation effects is becoming more and more significant in a variety of channels, due to the impressive experimental effort of the last years. We review recent progress in Bs semileptonic decays and in Bs decays into…

High Energy Physics - Phenomenology · Physics 2012-05-15 Giulia Ricciardi

Cosmological implications of asymmetry between particles and antiparticles are reviewed. Three possible mechanisms of CP-violation in cosmology are described. General features of kinetics of generation of cosmological charge asymmetry are…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. D. Dolgov

We argue that the observation of a sizable direct CP asymmetry A_{CP} in the inclusive decays B -> X_s gamma would be a clean signal of New Physics. In the Standard Model, A_{CP} can be calculated reliably and is found to be below 1% in…

High Energy Physics - Phenomenology · Physics 2016-08-25 A. L. Kagan , M. Neubert

CP violation in the K system is pedagogically reviewed. We discuss its manifestations in the neutral K meson systems, in rare K meson decays and in decays of charged K mesons. Results from classical experiments, and perspectives for…

High Energy Physics - Experiment · Physics 2015-06-25 Juliet Lee-Franzini , Paolo Franzini

In this talk CP violation in the supersymmetric models, and especially in B-decays is discussed. We review our analysis of the supersymmetric contributions to the mixing CP asymmetries of $B\to \phi K_S$ and $B\to \eta^{\prime} K_S$…

High Energy Physics - Phenomenology · Physics 2007-05-23 E. Gabrielli , K. Huitu , S. Khalil

CP violation in the decays $t \to \ell^+\nu b$ and $\bar t \to \ell^-\bar\nu \bar b$ from the production process $e^-e^+ \to \ttbar$ is discussed. Since the asymmetry proposed as a measure of CP violation vanishes even at the one-loop level…

High Energy Physics - Phenomenology · Physics 2009-09-01 Bohdan Grzadkowski , Wai-Yee Keung

The CP violating asymmetries in the (b -> d l^+ l^-) decay, when one of the leptons is polarized, is investigated using the most general form of the effective Hamiltonian. The sensitivity of the CP violating asymmetries on the new Wilson…

High Energy Physics - Phenomenology · Physics 2014-11-17 T. M. Aliev , V. Bashiry , M. Savci

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

We study resonant CP-violating Einstein--Podolsky--Rosen correlations that may take place in the production and decay of unstable scalar particles at high-energy colliders. We show that as a consequence of unitarity and CPT invariance of…

High Energy Physics - Phenomenology · Physics 2011-12-14 Olaf Kittel , Apostolos Pilaftsis

I review some of the salient issues connected to CP-violation and weak decays. In particular, I focus on recent and forthcoming tests of the CKM model and discuss the accuracy one can expect to achieve in B-decays for the parameters of this…

High Energy Physics - Phenomenology · Physics 2007-05-23 R. D. Peccei

The possibility of spontaneous breaking of CP symmetry by the expectation values of orbifold moduli is investigated with particular reference to $CP$ violating phases in soft supersymmetry breaking terms. The effect of different mechanisms…

High Energy Physics - Theory · Physics 2014-11-18 D. Bailin , G. V. Kraniotis , A. Love

We study the possibility of measuring nonstandard CP violation effects through Dalitz plot analysis in B^\pm -> D_s^\pm D^0 pi^0 decays. The accuracy in the extraction of CP violating phases is analyzed by performing a Monte Carlo…

High Energy Physics - Phenomenology · Physics 2009-11-10 L. Epele , D. Gomez Dumm , R. Mendez-Galain , A. Szynkman