English
Related papers

Related papers: B Physics Overview: Rare Hadronic and Radiative De…

200 papers

The rare K and B semileptonic decays into neutrino pairs are well-known to be extremely sensitive to non-standard physics in the quark sector. In this talk, their capabilities to signal New Physics in the leptonic sector, or even to reveal…

High Energy Physics - Phenomenology · Physics 2010-12-21 Christopher Smith

Rare radiative, leptonic and semileptonic B meson decays are valuable probes of physics beyond the Standard Model. This talk reviews the sensitivity to new physics of observables related to two rare B decays to be measured in the near…

High Energy Physics - Phenomenology · Physics 2015-03-19 David M. Straub

We present a summary of the latest measurements of branching fractions and direct CP violations in the charmless hadronic two-body B decays B -> K^+ pi^-, K^+ pi^0, K^0 pi^+ and K^0 pi^0, performed by the Belle, BABAR, CDF and CLEO…

High Energy Physics - Experiment · Physics 2011-01-05 Yuuji Unno

Coupling the scale invariant unparticle sector to flavour physics and assuming that it remains scale invariant we investigate its consequences in heavy flavour physics. A drastic feature of unparticle physics is an unusual phase leading to…

High Energy Physics - Phenomenology · Physics 2008-11-26 Roman Zwicky

We compute the supersymmetric (SUSY) contributions to the observables in Bs-->K+K- and Bs-->K0 anti-K0 decays. The hadronic parameters in the standard-model (SM) amplitudes are obtained from the Bd-->K0 anti-K0 decay using a recent approach…

High Energy Physics - Phenomenology · Physics 2011-03-23 Seungwon Baek , David London , Joaquim Matias , Javier Virto

I briefly review CP violation in the B system, concentrating on B -> pi K decays. I discuss how to deal with electroweak-penguin contributions to these decays using flavour SU(3). With these, I show that the entire unitarity triangle can be…

High Energy Physics - Phenomenology · Physics 2014-11-17 Maxime Imbeault

We study two-body hadronic $B_s\to PT$ decays, with $P (T)$ being a light pseudoscalar (tensor) meson, in the perturbative QCD approach. The CP-averaged branching ratios and the direct CP asymmetries of the $\Delta S=0$ modes are predicted,…

High Energy Physics - Phenomenology · Physics 2014-03-25 Qin Qin , Zhi-Tian Zou , Xin Yu , Hsiang-nan Li , Cai-Dian Lü

Contributions to B - \bar B mixing from physics beyond the standard model may be detected from CP-violating asymmetries in B decays. There exists the possibility of large new contributions that cannot be detected by first generation…

High Energy Physics - Phenomenology · Physics 2009-10-31 Lincoln Wolfenstein

In this proceeding we will review the current theoretical status of rare $B$ decays. These decays are indeed excellent indirect probes for New Physics searches, and in the current situation where no new states have been directly observed at…

High Energy Physics - Phenomenology · Physics 2024-02-07 Marco Fedele

The recent Tevatron result on the top quark forward-backward asymmetry, which deviates from its standard model prediction by 3.4$\sigma$, has prompted many authors to build new models to account for this anomaly. Among the various…

High Energy Physics - Phenomenology · Physics 2015-05-27 Chuan-Hung Chen , Sandy S. C. Law , Run-Hui Li

The semitauonic $B_c^- \to J/\psi \tau^-\bar{\nu}_\tau$ decay is optimal to scrutinize possible new physics effects in $b \to c \tau^- \bar{\nu}_\tau$ transitions as indicated by the current data on $R(D^{(*)})$ anomalies. In this work, we…

High Energy Physics - Phenomenology · Physics 2023-06-07 Xin-Qiang Li , Xin Xu , Ya-Dong Yang , Dong-Hui Zheng

Some aspects of $B$ physics relevant for experiments in hadron colliders are discussed. These include the determination of parameters of the CKM Matrix and confirmation of its role in CP violation, studies of mixing of nonstrange and…

High Energy Physics - Phenomenology · Physics 2009-10-28 Jonathan L. Rosner

We summarize recent results for charm physics. These results span several categories: charm mixing, indirect (time-dependent) CP violation, direct (time-integrated) CP violation, T violation, semileptonic and leptonic decays, and decays of…

High Energy Physics - Experiment · Physics 2018-08-01 A. J. Schwartz

In SUSY models, it is still possible to have large signals even if the current data on $K$ and $B$ systems are consistent with the CKM paradigm for flavor mixing and CP violation. I first discuss $b\to d$ and $b\to s$ transitions including…

High Energy Physics - Phenomenology · Physics 2007-05-23 P. Ko

The decay process $B\to D^+ D^- \pi^0$ is an interesting channel for the investigation of CP violating effects in the $b-$ sector. We write down a decay amplitude constrained by a low-energy theorem, which also includes the contribution of…

High Energy Physics - Phenomenology · Physics 2009-10-31 P. Colangelo , F. De Fazio , G. Nardulli , N. Paver , Riazuddin

Using the hadronic matrix elements from the lattice, B_K and xi_s, involving only the 4-quark operators for Delta flavor (F) = 2 Hamiltonian relevant for K, B_d and B_s mixing, along with V_cb, we deduce a non-trivial constraint on the SM,…

High Energy Physics - Phenomenology · Physics 2008-11-26 Enrico Lunghi , Amarjit Soni

This talk discusses the theory of inclusive and exclusive radiative B decays, emphasizing the interplay of perturbative and non-perturbative effects and the importance CP and isospin asymmetries.

High Energy Physics - Phenomenology · Physics 2017-04-05 Gil Paz

We report preliminary results on time-dependent CP asymmetries in $B \to D^{*\mp}\pi^{\pm}$ decays. The CP asymmetry in these decays is proportional to $2R_{D^{*} \pi} \sin (2\phi_1 + \phi_3 \pm \delta_{D^{*} \pi})$, where $R_{D^{*} \pi}$…

High Energy Physics - Experiment · Physics 2019-08-13 S. Bahinipati , K. Trabelsi , K. Kinoshita

The rare decays {$B^- \to \tau \bar\nu$}, \mbox{$B \to \tau^+ \tau^-$}, {$b \to X \nu \bar\nu$} and \mbox{$b \to X \tau^+ \tau^-$} all contain third generation leptons in the final state, and hence are sensitive to new physics that couples…

High Energy Physics - Phenomenology · Physics 2008-11-26 Dafne Guetta , Enrico Nardi

We propose a theoretical framework for analyzing three-body hadronic $B$ meson decays based on the perturbative QCD approach. The crucial nonperturbative input is a two-hadron distribution amplitude for final states, whose involved…

High Energy Physics - Phenomenology · Physics 2014-04-17 Wen-Fei Wang , Hao-Chung Hu , Hsiang-nan Li , Cai-Dian Lü