中文
相关论文

相关论文: Results on $\sin 2\phi_2 (\alpha)$ from the B Fact…

200 篇论文

We report the latest results on CP violation measurements and the tantalizing hints of potential new physics effects obtained at the B factories.

高能物理 - 实验 · 物理学 2010-03-09 Gagan B. Mohanty

Recent results on B mixing and CP violation from the B-factory experiments, BABAR and Belle are summarized.

高能物理 - 实验 · 物理学 2014-11-17 Yibin Pan

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 $\sin 2\beta$…

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

Recent developments in the theory of CP violation in the B-meson system are reviewed, with focus on the determination of sin(2beta) from B-> J/psi K decays, its implications for tests of the Standard Model and searches for New Physics, and…

高能物理 - 唯象学 · 物理学 2009-11-07 Matthias Neubert

Recent experimental results on CP violation in the study of B meson decays are reviewed. The emphasis is put on the recent measurements of the CP parameter sin2beta by the BABAR and BELLE experiments at asymmetric B factories, which…

高能物理 - 实验 · 物理学 2007-05-23 Gautier Hamel de Monchenault

The highlights and conflicts at the B Factories are briefly reviewed. $CP$ violation was established in 2001 in $B^0 \to J/\psi K_S$ and related modes, which has now become a precision measurement of CP violation in $B^0$-$\bar B^0$ mixing.…

高能物理 - 唯象学 · 物理学 2014-11-18 Wei-Shu Hou

CP-violating asymmetries in $B \to \pi \pi$ and $B \to \rho \rho$ decays can help specify the weak phase $\phi_2 = \alpha$ of the Cabibbo-Kobayashi-% Maskawa (CKM) matrix. We discuss the impact of improved measurements of these processes…

高能物理 - 唯象学 · 物理学 2016-10-26 Michael Gronau , Jonathan L. Rosner

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…

高能物理 - 实验 · 物理学 2008-10-07 J. Ellison

The current results on B to pipi decays and SU2 constraints on the Unitarity Triangle angle alpha or phi_2 from the B-factories are summarised. Based on these measurements, predictions of the isospin analysis constraints at the end of the…

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

We review recent progress at the two $e^+ e^-$ B factories. The first measurement of CP violation and the prospects for measuring all the angles of the unitarity triangle are discussed.

高能物理 - 实验 · 物理学 2015-06-25 T. E. Browder

Determination of the characteristic CP-violating quantity \sin (2\beta) should be the central goal of a B-meson factory in its first-round experiments. Except the gold-plated channels B_d\to \psi K_S and \psi K_L, three other types of B_d…

高能物理 - 唯象学 · 物理学 2016-09-06 Zhi-zhong Xing

An overview of the observation of CP violation in the neutral B system, and the measurements of the CP violating asymmetry sin(2beta) with B to charmonium K^0_{S,L} events, performed by the BaBar and Belle experiments at the SLAC and KEK B…

高能物理 - 实验 · 物理学 2010-11-23 Gerhard Raven

In the main part of the paper we project forward to having $B$ factory determinations of $\sin(2\beta)$ and $\sin(2\alpha)$, for which we take several values. First, we use a joint $\chi^2$ analysis of CKM experiments to constrain CKM…

高能物理 - 唯象学 · 物理学 2010-11-01 Dennis Silverman

We study the implication of the time-dependent CP asymmetry in $B\to\pi^+\pi^-$ decays on the extraction of weak phases taking into account the precise measurement of $\sin 2\beta$, obtained from the ``gold-plated''mode $B\to J/\psi K_S$.…

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

We explore the CP violation in $B \to \phi K$ decay processes in the presence of the anomalous right-handed $\bar{t}sW$ and $\bar{t}bW$ couplings. The complex anomalous top coupling can be a source of the new CP violation and lead to a…

高能物理 - 唯象学 · 物理学 2011-09-13 Jong-Phil Lee , Kang Young Lee

In this paper the most recent Tevatron results concerning CP violation in the B0s system are reviewed. These are the measurement of the direct CP asymmetry in the B0s->K-\pi+ decay performed by CDF and the measurement of \Delta\Gamma_s and…

高能物理 - 实验 · 物理学 2011-03-23 S. Donati

Sensitivity studies to the CP-violating parameters of the decay Bs->phi phi with the LHCb experiment are presented. The decay proceeds via a b->s s anti-s gluonic-penguin quark transition, which is sensitive to contributions from beyond the…

高能物理 - 唯象学 · 物理学 2007-05-23 J. F. Libby

We analyze the extraction of weak phases from CP violation in $B\to\pi^+\pi^-$ decays. We propose to determine the unitarity triangle $(\bar\rho,\bar\eta)$ by combining the information on mixing induced CP violation in $B\to\pi^+\pi^-$,…

高能物理 - 唯象学 · 物理学 2009-01-07 Gerhard Buchalla , A. Salim Safir

Results by the BaBar and Belle experiments of the measurements $\sin 2\alpha$, $\sin 2\beta$ and $\sin (2\beta + \gamma)$ along with the CKM matrix elements $V_{cb}$ and $V_{ub}$ are presented. The BaBar and Belle experiments $b \to…

高能物理 - 实验 · 物理学 2010-11-23 E. O. Olaiya

We look at two methods to determine the weak phases $\phi_2$ and $\phi_3$ from $B \to \pi\pi$ and $K\pi$ decays within the perturbative QCD approach. We obtain quite interesting bounds on $\phi_2$ and $\phi_3$ from experimental measurements…

高能物理 - 唯象学 · 物理学 2007-05-23 Yong-Yeon Keum
‹ 上一页 1 2 3 10 下一页 ›