English
Related papers

Related papers: New Physics in Bs -> J/psi phi: a General Analysis

200 papers

The recent data on CP asymmetry in $B->J/\Psi K_S$ and muon g-2 are discussed in the framework of standard model and beyond. Possible new phase effects besides the CKM phase are discussed in the processes concerning CP violation in B decays…

High Energy Physics - Phenomenology · Physics 2017-08-23 Yue-Liang Wu , Yu-Feng Zhou

We present measurements of the branching fraction and time-dependent CP asymmetries in B0->J/Psi pi0 decays based on (231.8 +/- 2.6)*10^6 Upsilon(4S) -> BBbar decays collected with the BaBar detector at the PEP-II asymmetric-energy B…

High Energy Physics - Experiment · Physics 2007-05-23 B. Aubert , BABAR Collaboration

The BABAR experiment at the PEP-II asymmetric B factory at SLAC has collected a large sample of data at the $\Upsilon(4S)$ resonance. I will summarize BABAR's new results on CP violation, B mixing and lifetimes, and a selection of rare B…

High Energy Physics - Experiment · Physics 2007-05-23 Aaron Roodman

In the decay chain B(d) --> Psi + K --> Psi + (pi l nu), neutral K mixing follows on the heels of neutral B mixing. This "cascade mixing" leads to an interference which probes cos(2*beta), where beta is one of the three CP-violating phase…

High Energy Physics - Phenomenology · Physics 2007-05-23 Boris Kayser

Direct CP violation can occur in B-meson decays of the type b -> d+c+cbar, where the charm-anticharm pair forms a J/psi. The CP asymmetry requires the contribution to the amplitude from decays into other states, which rescatter into d+J/psi…

High Energy Physics - Phenomenology · Physics 2010-11-01 Joao M. Soares

We systematically investigate tests of the parity P and the combined parity and charge-conjugate CP symmetries from differential angular distributions of $J/\psi$ decaying into the lowest-lying baryon pairs at BESIII and the next-generation…

High Energy Physics - Phenomenology · Physics 2024-10-31 Yong Du , Xiao-Gang He , Jian-Ping Ma , Xin-Yu Du

The Bs meson is an interesting particle to study because a sizable mixing induced CP violation in the Bs-Bsbar system would be an indication for physics beyond the Standard Model. In this paper we present a measurement of the lifetime…

High Energy Physics - Experiment · Physics 2019-08-13 Thomas Kuhr

I discuss several techniques for observing new physics using measurements of B -> V1 V2 decays. Within the standard model, all CP-violating triple-product correlations (TP's) involving light vector mesons are expected be very small or to…

High Energy Physics - Phenomenology · Physics 2007-05-23 David London

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 present a preliminary measurement of time-dependent CP-violating asymmetries in B0 -> J/psi K0S and B0 -> psi(2S) K0S decays recorded by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. The data sample consists of…

High Energy Physics - Experiment · Physics 2007-05-23 The BABAR Collaboration , B. Aubert

We consider the new-physics (NP) solution to the polarization puzzle in B -> phi K* decays. We note that any such solution must reproduce the data in B -> phi Ks, where there are disagreements with the standard model in CP-asymmetry…

High Energy Physics - Phenomenology · Physics 2009-02-10 Alakabha Datta , Maxime Imbeault , David London

We present the latest B physics results from the CDF experiment at the Fermilab Tevatron collider. We focus on a number of analyses, including a measurement of the forward-backward asymmetry of B -> K^(*) mu mu decays, determination of the…

High Energy Physics - Experiment · Physics 2010-06-01 Elisa Pueschel

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…

High Energy Physics - Experiment · Physics 2007-05-23 A. Satpathy

We analyze nonleptonic $B_s$ decays to a charmonium state and a light meson, induced by the $b \to c {\bar c}s$ transition, which are useful to access the $B_s$-${\bar B}_s$ mixing phase $\beta_s$. We use generalized factorization and…

High Energy Physics - Phenomenology · Physics 2011-06-06 Pietro Colangelo , Fulvia De Fazio , Wei Wang

Flavor symmetry and symmetry breaking, K^0-\bar{K}^0 mixing and possible effects of new physics on CP violation in weak decay modes D^{\pm} \to K_{S,L} + X^{\pm}, (K_{S,L} + \pi^0)_{K^*} + X^{\pm} (for X =\pi, \rho, a_1) and D^{\pm}_s \to…

High Energy Physics - Phenomenology · Physics 2009-10-31 Harry J. Lipkin , Zhi-zhong Xing

The study of CP violation in $B$-meson decays has already reached a high level of precision, which will be pushed even higher in the future era of Belle-II and the LHCb upgrade. %Important probes of CP violation are the $B_d^0$ and $B_s^0$…

High Energy Physics - Phenomenology · Physics 2018-07-24 K. Keri Vos

This proceeding contribution presents the latest measurement of the CP-violation and other physics parameters in the $B_s^0 \to J/\psi \phi$ decay channel performed by the ATLAS, CMS and LHCb experiments. The measurements are based on a…

High Energy Physics - Experiment · Physics 2020-08-20 Jhovanny Mejia-Guisao

CP-violating effects in the time-dependent angular distribution of the B^0_s -> J/psi[-> ell^+ ell^-] phi[-> K^+K^-] decay products play a key role for the search of new physics. The hadronic Standard-Model uncertainties are related to…

High Energy Physics - Phenomenology · Physics 2009-01-16 Sven Faller , Robert Fleischer , Thomas Mannel

The non-minimal flavour violating interactions of mirror quarks and new heavy gauge bosons in the Littlest Higgs model with T-parity (LHT) give rise to naturally large CP-violating effects in the B_s system. In view of a large new CP phase…

High Energy Physics - Phenomenology · Physics 2010-01-15 Monika Blanke , Andrzej J. Buras , Stefan Recksiegel , Cecilia Tarantino

First measurements of the CP observables from a time-dependent analysis of $\bar{B}^0_s\to D_s^+K^-$ decays are reported. We also present the first observation of the $\bar{B}^0_{(s)}\to D_s^+K^-\pi^+\pi^-$ and $\bar{B}^0_s\to…

High Energy Physics - Experiment · Physics 2019-08-13 Steven Blusk