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Measurements of the CKM parameter $\sin(2 \beta)$ have established $CP$ violation in the $B^0$ meson system arising from the interference between mixing and decay. However, direct CP violation, arising from the interference among different…

高能物理 - 实验 · 物理学 2007-05-23 A. Satpathy

These proceedings review direct CP violation in hadronic B decays. The experimental results include those related to the measurement of the unitarity triangle angle gamma using B->D(*)K(*) decays and measurements of charmless hadronic B…

高能物理 - 实验 · 物理学 2014-12-16 Jim Libby

The status of Lattice QCD is reviewed with respect to results that are relevant to Standard Model phenomenology. I argue that in a few simple cases all (or almost all) systematic errors from the lattice calculation are under control.…

高能物理 - 唯象学 · 物理学 2008-02-03 Aida X. El-Khadra

The current status of the search for indirect CP violation in the neutral D meson system at the B-factories and at LHCb is reported. The indirect CP asymmetry search is performed by the measurement of the proper-time asymmetry…

高能物理 - 实验 · 物理学 2013-12-18 Silvia Borghi

We discuss the determination of the CKM parameters from the forthcoming $CP$ violation observables in $B_s \to K^+ K^-$ decays. Combining the information on mixing induced CP violation in $B_s \to K^+ K^-$, with the $B_d \to J/\psi K_s$…

高能物理 - 唯象学 · 物理学 2010-11-23 A. Salim Safir

The final result is presented of the NA48 Experiment performed at CERN SPS neutral kaon beams on the direct CP violation parameter Re(epsilon'/epsilon), as maesured from the decay rates of neutral kaons into two pions. The data collected in…

高能物理 - 实验 · 物理学 2008-11-26 Wojciech Wislicki

CP violation in the neutral kaon system is known to be dominated by the mixing of K0 and anti-K0. Direct CP violation in the 2 pion decays of neutral kaons has been a controversial subject over the last decade. A strong experimental effort…

高能物理 - 实验 · 物理学 2007-05-23 M. Cirilli

We study CP violation in b-baryon decays of $\Xi_b^- \to \Xi^- D$ with $D = D^0, \bar{D}^0$ and $D_i~(i=1,2)$. We find that these baryonic decay processes provide an ideal opportunity to measure the weak phase due to the absence of the…

高能物理 - 唯象学 · 物理学 2022-09-07 Chao-Qiang Geng , Xiang-Nan Jin , Chia-Wei Liu , Zheng-Yi Wei , Jiabao Zhang

We report a measurement of the direct CP violation asymmetry parameter $A_g$ in charged kaon decays $K^\pm\to\pi^\pm\pi^+\pi^-$ by the NA48/2 experiment at the CERN SPS. The experiment has been designed not to be limited by systematics in…

高能物理 - 实验 · 物理学 2012-08-27 2 Collaboration , J. R. Batley

Recent highlights in CP violation phenomena are reviewed. B-factory results imply that CP-violation phase in the CKM matrix is the dominant contributor to the observed CP violation in K and B-physics. Deviations from the predictions of the…

高能物理 - 唯象学 · 物理学 2007-05-23 Amarjit Soni

The CKM matrix element $|V_{us}|$ can be extracted from the experimental measurement of semileptonic $K\to\pi$ decays. The determination depends on theory input for the corresponding vector form factor in QCD. We present a preliminary…

The decay modes $B$ to $\pi\pi$, $\psi K_S$, $K^- D$, $\pi K$ and $\eta K$ are promising channels to study the unitarity triangle of the CP violating CKM matrix. In this paper I study the consequences of these measurements in the Weinberg…

高能物理 - 唯象学 · 物理学 2009-10-28 Xiao-Gang He

The NA48/2 result, based on the data collected during the 2003 run, on direct CP violation in $K^{\pm}\to\pi^{\pm}\pi^0\pi^0$ decay is presented. The main goal of the experiment is to reach a sensitivity at level of $10^{-4}$ in the…

高能物理 - 实验 · 物理学 2007-05-23 G. Lamanna

We discuss a class of models in which CP is violated softly in a heavy sector adjoined to the standard model. Heavy-sector loops produce the observed CP violation in kaon physics, yielding a tiny and probably undetectable value for…

高能物理 - 唯象学 · 物理学 2009-09-11 Howard Georgi , Sheldon L. Glashow

I will review the latest developments in determining the CP-violating phases of the CKM matrix elements from measurements by the BaBar and BELLE experiments at the high-luminosity B factories (PEP-II and KEKB). The emphasis will be on the…

高能物理 - 实验 · 物理学 2010-06-22 Owen Long

We present a lattice QCD determination of the vector form factor of the kaon semileptonic decay K -> pi l nu which is relevant for the extraction of the CKM matrix element |V_{us}| from experimental data. Our result is based on the gauge…

高能物理 - 格点 · 物理学 2014-11-06 Nuria Carrasco , Paolo Lami , Vittorio Lubicz , Eleonora Picca , Lorenzo Riggio , Silvano Simula , Cecilia Tarantino

Lattice QCD calculations in charm and bottom physics are particularly important because they can provide the hadronic weak decay matrix elements needed for key constraints on the CKM Unitarity Triangle. I will summarise recent results in…

高能物理 - 格点 · 物理学 2012-03-20 Christine Davies

CP asymmetries in $B$ decays into final CP eigenstates are in many cases theoretically clean. In particular, they do not depend on the values of hadronic parameters. The sign of the asymmetries, however, does depend on the sign of the $B_B$…

高能物理 - 唯象学 · 物理学 2009-10-30 Yuval Grossman , Boris Kayser , Yosef Nir

Significant progress has recently been achieved in the lattice gauge theory calculations required for extracting the fundamental parameters of the standard model from experiment. Recent lattice determinations of such quantities as the kaon…

高能物理 - 唯象学 · 物理学 2015-06-25 Paul B. Mackenzie

Direct CP violation in the hadronic decays $\Bar{B}^{0} \to \pi^{+}\pi^{-} \pi^{0}$ is investigated near the peak of the $\rho^{0}$ taking into account the effect of $\rho - \omega$ mixing. Branching ratios for processes $B^{\pm,0} \to…

高能物理 - 唯象学 · 物理学 2010-02-17 O. Leitner , X. -H. Guo , A. W. Thomas