English
Related papers

Related papers: Implications of B meson decay data -- a graphical …

200 papers

Measurements of the rates for the hadronic decays B^+- -> pi K can be used to derive information on the weak phase gamma=arg(V_ub^*) in a largely model-independent way. Hadronic uncertainties can be reduced to the level of nonfactorizable…

High Energy Physics - Phenomenology · Physics 2010-11-23 Matthias Neubert

We give the detailed analyses for the gluonic-penguin effect on the $\kp$ and $\pp$ decays of the $B$ meson. In the standard model, it is shown that the ratio $BR(B\A\kp)/BR(B\A\pp)$ takes the value $0.5\sim 3.0$ with the strongly depending…

High Energy Physics - Phenomenology · Physics 2010-11-01 Takemi Hayashi , Masahisa Matsuda , Morimitsu Tanimoto

The low-energy S-wave component of the decay $D^+ \to K^- \pi^+ \pi^+$ is studied by means of a chiral SU(3)XSU(3) effective theory. As far as the primary vertex is concerned, we allow for the possibility of either direct production of…

High Energy Physics - Phenomenology · Physics 2008-06-02 D. R. Boito , P. C. Magalhães , M. R. Robilotta , G. R. S. Zarnauskas

Using the $SU(3)$ flavour symmetry of strong interactions, we propose strategies for extracting both the CKM-angle $\gamma$ and the $\bar b\to\bar uu\bar s$ tree-level amplitude $T'$. We present also an approximate approach using the…

High Energy Physics - Phenomenology · Physics 2011-01-05 Robert Fleischer

The most common decay used for measuring 2beta_s, the phase of Bs-Bsbar mixing, is Bs -> J/psi phi. This decay is dominated by the colour-suppressed tree diagram, but there are other contributions due to gluonic and electroweak penguin…

High Energy Physics - Phenomenology · Physics 2015-06-11 Bhubanjyoti Bhattacharya , Alakabha Datta , David London

Recently B-factories have published new results on the $B \to K \eta \gamma$ decays being inspired by the theoretical suggestion to search for new physics in $B \to P_1 P_2 \gamma$ decays. Using heavy meson chiral perturbation theory we…

High Energy Physics - Phenomenology · Physics 2008-11-26 Svjetlana Fajfer , Tri-Nang Pham , Nejc Košnik

A quadrangle relation is shown to be satisfied by the amplitudes for $B^+ \to \pi^0 K^+,~\pi^+ K^0,~\eta K^+$, and $\eta' K^+$. By comparison with the corresponding relation satisfied by $B^-$ decay amplitudes, it is shown that the relative…

High Energy Physics - Phenomenology · Physics 2016-08-24 Michael Gronau , Jonathan L. Rosner

The large branching ratios for $B \to K\pi$ decays as observed by the CLEO Collaboration indicate that penguin interactions contribute a major part to the decay rates and provide an interference between the Cabibbo-suppressed tree and…

High Energy Physics - Phenomenology · Physics 2009-10-31 T. N. Pham

Motivated by recent measurements, we investigate $B\to \pi \pi, K \pi$ decay modes in the framework of QCD improved factorization, which was recently proposed by Beneke $et al$. We find that all the measured branching ratios are well…

High Energy Physics - Phenomenology · Physics 2009-10-31 Taizo Muta , Akio Sugamoto , Mao-Zhi Yang , Ya-Dong Yang

The decays of $B$ mesons to two-body hadronic final states are analyzed within the context of broken flavor SU(3) symmetry, extending a previous analysis involving pairs of light pseudoscalars to decays involving one or two charmed quarks…

High Energy Physics - Phenomenology · Physics 2010-11-01 Michael Gronau , Oscar F. Hernandez , David London , Jonathan L. Rosner

Two-body charmless nonleptonic decays of the B_s meson are studied within the framework of generalized factorization in which factorization is applied to the tree level matrix elements while the effective Wilson coefficients are $\mu$ and…

High Energy Physics - Phenomenology · Physics 2016-08-25 Yaw-Hwang Chen , Hai-Yang Cheng , B. Tseng

We investigate the $B\to a_1(1260)(b_1(1235))\pi(K)$ decays under the factorization scheme and find many discrepancies between theoretical predictions and the experimental data. In the tree dominated processes, large contributions from…

High Energy Physics - Phenomenology · Physics 2008-11-26 Wei Wang , Run-Hui Li , Cai-Dian Lü

The Cabibbo-Kobayashi-Maskawa matrix element |V_ub| can be extracted from the rate for the semi-leptonic decay B -> pi + l + antineutrino_l, with little theoretical uncertainty, provided the hadronic form factor for the B -> pi transition…

High Energy Physics - Phenomenology · Physics 2016-09-06 Joao M. Soares

We find expressions for the weak decay amplitudes of baryons containing two b quarks (or one b and one c quark -- many relationship are the same) in terms of unknown reduced matrix elements. This project was originally motivated by the…

High Energy Physics - Phenomenology · Physics 2011-01-27 David A. Egolf , Roxanne P. Springer , Joerg Urban

In this paper we try to extract the CKM angle $\gamma$ from the new "mixed" system of $B^+ \to \pi^+ K^0$ and $B_d^0 \to \pi^0 K^0$ decays. We also made an update for the constraints on the angle $\gamma$ from the observables $R$ and $A_0$.…

High Energy Physics - Phenomenology · Physics 2009-11-07 Zhenjun Xiao , Minping Zhang

Charmless $B$ decays are dominated by contributions from the short distance amplitudes from tree level and penguin loop-level amplitudes. The Tree contribution presents a weak phase $\gamma$. The relationship between these two amplitudes…

High Energy Physics - Experiment · Physics 2014-08-22 Ignacio Bediaga

This paper is the extension of our previous work [arXiv:2108.03296] entitled Searching a systematics for nonfactorizable contributions to B hadronic decays. In order to realize the full impact of isospin analysis, and to relate decays of…

High Energy Physics - Phenomenology · Physics 2025-02-28 Maninder Kaur , R. C. Verma

We present a general parametrization of $B^\pm\to\pi^\pm K, \pi^0K^\pm$ and $B_d\to\pi^0 K, \pi^\mp K^\pm$ decays, taking into account both electroweak penguin and rescattering effects. This formalism allows -- among other things -- an…

High Energy Physics - Phenomenology · Physics 2011-09-13 Andrzej J. Buras , Robert Fleischer

We calculate the electron spectrum of semileptonic decays of B-mesons into non-charmed hadrons. The shape of the spectrum obtained from QCD sum rules is in general agreement with quark model calculations. At high electron energies the…

High Energy Physics - Phenomenology · Physics 2008-11-26 P. Ball , V. M. Braun , H. G. Dosch

We review recent advances in the theory of strong-interaction effects and final-state interactions in hadronic weak decays of heavy mesons. In the heavy-quark limit, the amplitudes for most nonleptonic, two-body B decays can be calculated…

High Energy Physics - Phenomenology · Physics 2009-10-31 Matthias Neubert