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We present a general analysis for the discovery potential of CP-violation (CPV) searches in scattering processes at TeV-scale colliders in an effective field theory framework, using the SMEFT basis for higher dimensional operators. In…

高能物理 - 唯象学 · 物理学 2024-07-30 Shaouly Bar-Shalom , Amarjit Soni , Jose Wudka

Recent developments concerning CP violation beyond the Standard Model are reviewed. The central target of this presentation is the $B$ system, as it plays an outstanding role in the extraction of CKM phases. Besides a general discussion of…

高能物理 - 唯象学 · 物理学 2007-05-23 Robert Fleischer

In the perturbative QCD framework, we use the quasi-two-body method to study the CP violations and branching ratios in the $\bar B_{s} \rightarrow [\phi(\rho^{0},\omega)\rightarrow K^{+}K^{-}][K^{*0}\rightarrow K^{+}\pi^{-}]$ and $\bar…

高能物理 - 唯象学 · 物理学 2025-04-28 Jiao Wu , Na Wang , Gang Lü , Xin-Heng Guo

We review and update the constraints on the parameters of the quark flavour mixing matrix $V_{CKM}$ in the standard model and estimate the resulting CP asymmetries in $B$ decays, taking into account recent experimental and theoretical…

高能物理 - 唯象学 · 物理学 2010-11-11 A. Ali , D. London

In this presentation, we discuss recent key topics in theoretical analyses of CP violation in benchmarks decays of the $B$ meson. We provide the most updated values of the mixing phases and discuss the importance of including the penguin…

高能物理 - 唯象学 · 物理学 2024-02-28 Eleftheria Malami

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…

高能物理 - 唯象学 · 物理学 2011-03-23 F. Krüger , E. Lunghi

Scalar interactions (in effective Hamiltonian) can give significant variation of various experimental observables, as comparted to their respective Standard Model values, in dileptonic decays of B-meson. Also the quark level transition $b…

高能物理 - 唯象学 · 物理学 2007-05-23 S. Rai Choudhury , Naveen Gaur

Sources of CP violation beyond the Standard Model (BSM) are required to explain the baryonic asymmetry of the Universe. In this work, we study BSM CP-violating components in the HWW interaction in WH production, parametrized by an effective…

高能物理 - 唯象学 · 物理学 2024-05-20 Ricardo Barrué , Patricia Conde-Muíño , Valerio Dao , Rui Santos

The mechanism of CP violation remains one of the puzzles in particle physics. Key to understanding this phenomenon are nonleptonic $B$ decays, especially multibody decays which exhibit large CP asymmetries in various regions of phase space.…

高能物理 - 唯象学 · 物理学 2020-07-15 Thomas Mannel , Kevin Olschewsky , K. Keri Vos

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…

高能物理 - 唯象学 · 物理学 2022-09-30 Avital Dery , Yuval Grossman , Stefan Schacht , Diego Tonelli

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…

高能物理 - 唯象学 · 物理学 2014-11-17 Robert N. Cahn , Mihir P. Worah

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…

高能物理 - 唯象学 · 物理学 2020-07-14 David London

We explore the possibility of using CP violation in B decays to detect the presence of physics beyond the Standard Model. We first study the possibility of new physics in the $B-\bar B$ mixing amplitude. We discuss a construction to extract…

高能物理 - 唯象学 · 物理学 2007-05-23 Mihir P. Worah

CP-violating effects in decays of B mesons offer a wide spectrum of probes for testing the phase structure of the quark-flavour sector of the Standard Model. After a brief discussion of the picture emerging from the current LHC data, the…

高能物理 - 唯象学 · 物理学 2015-06-22 Robert Fleischer

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…

高能物理 - 唯象学 · 物理学 2007-05-23 A. Ali

A search for the violation of the charge-parity ($CP$) symmetry in the production of top quarks in association with Z bosons is presented, using events with at least three charged leptons and additional jets. The search is performed in a…

高能物理 - 实验 · 物理学 2026-01-08 CMS Collaboration

We consider CP violating effects in decays of the type $B^\pm\to \gamma a^\pm_{1,2}$ where $a_{1,2}$ are the $J^P=1^+$ and $2^+$ resonances each decaying to the common final state via $a^\pm_{1,2} \to\pi^\pm\rho^0$. The resonances enhance…

高能物理 - 唯象学 · 物理学 2010-11-01 D. Atwood , A. Soni

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…

高能物理 - 唯象学 · 物理学 2011-03-23 G. Barenboim , J. Bernabeu , J. Matias , M. Raidal

Direct CP violation in charmless three-body hadronic decays of $B$ mesons is studied within the framework of a simple model based on the factorization approach. Three-body decays of heavy mesons receive both resonant and nonresonant…

高能物理 - 唯象学 · 物理学 2016-11-23 Hai-Yang Cheng , Chun-Khiang Chua , Zhi-Qing Zhang

The recent evidence of large direct CP violation in D0 decay at LHCb suggests that such CP studies may become an important avenue for understanding CP. In this paper, we make several suggestions to try to clarify the role of new physics in…

高能物理 - 唯象学 · 物理学 2014-05-07 David Atwood , Amarjit Soni