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Within the QCD factorization approach, we calculate the branching fractions and $CP$ asymmetry parameters of 12 $B \to K_0^*(1430)K^{(*)}$ decay modes under the assumption that the scalar meson $K_0^*(1430)$ is the first excited state or…

High Energy Physics - Phenomenology · Physics 2015-06-23 Ying Li , Hong-Yan Zhang , Ye Xing , Zuo-Hong Li , Cai-Dian Lu

The QCD factorization approach provides the theoretical basis for a systematic analysis of nonleptonic decay amplitudes of B mesons in the heavy-quark limit. After recalling the basic ideas underlying this formalism, several tests of QCD…

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

Two-body charmless nonleptonic decays of B_u and B_d mesons are studied within the framework of generalized factorization in which the effective Wilson coefficients $c^{eff}_i$ are renormalization-scale and -scheme independent while…

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

I review the meaning of ``QCD factorization'' in hadronic two-body B decays and then discuss recent results of theoretical (rather than phenomenological) nature: the proof of factorization at two loops; the identification of ``chirally…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. Beneke

While the factorization assumption works well for many two-body nonleptonic $B$ meson decay modes, the recent measurement of $\bar B\to D^{(*)0}M^0$ with $M=\pi$, $\rho$ and $\omega$ shows large deviation from this assumption. We analyze…

High Energy Physics - Phenomenology · Physics 2009-11-10 Yong-Yeon Keum , T. Kurimoto , H. -n. Li , C. -D. Lu , A. I. Sanda

We have performed a numerical analysis of branching ratios and direct CP-asymmetries of B meson decays to two light pseudoscalar nonets with deltaS=1 using QCD improved factorization. The parameters related to B meson including its…

High Energy Physics - Phenomenology · Physics 2015-06-16 Janardan P. Singh , N. G. Deshpande

The success of QCD factorization(QCDF) in predicting branching ratios for charmless $B$ decays to light pseudoscalar and vector mesons and the small CP asymmetries measured at $BABAR$, Belle and LHCb show that the phase in these decays, as…

High Energy Physics - Phenomenology · Physics 2016-06-29 T. N. Pham

After an introduction on the peculiarities of flavor-physics measurements at a hadron collider, and on the upgraded Collider Detector at Fermilab (CDF II), I show recent results on two-body B0 and B0s decays into charged, pseudo-scalar,…

High Energy Physics - Experiment · Physics 2019-08-14 Diego Tonelli

We present a new analysis of B_{d,s}->KK modes within the SM, relating them in a controlled way through SU(3)-flavour symmetry and QCD-improved factorisation. We propose a set of sum rules for B_{d,s}-> K^0{\bar K}^0 observables. We…

High Energy Physics - Phenomenology · Physics 2009-11-11 Sebastien Descotes-Genon , Joaquim Matias , Javier Virto

We derive factorization theorems for Lambda_QCD/mb power corrections to inclusive B-decays in the endpoint region, where mX^2 ~mb Lambda_QCD. In B-> Xu e nu our results are for the full triply differential rate. A complete enumeration of…

High Energy Physics - Phenomenology · Physics 2011-01-27 Keith S. M. Lee , Iain W. Stewart

We analyze the two-body charmed $B$ meson decays $B_{u,d,s} \to D^{(*)}P(V)$ in the factorization assisted topological amplitude approach, where $P(V)$ denoting a light pseudoscalar (vector) meson. Different from the conventional…

High Energy Physics - Phenomenology · Physics 2016-05-30 Cai-Dian Lu , Si-Hong Zhou

According to the heavy-quark flavour symmetry, the $B\to \pi, K$ transition form factors could be related to the corresponding ones of D-meson decays near the zero recoil point. With the recent precisely measured exclusive semileptonic…

High Energy Physics - Phenomenology · Physics 2011-08-03 Fang Su , Ya-Dong Yang

We present the first evidence of the decay mode $B_s \to \phi \phi$ and a measurement of partial width and direct CP asymmetry for the $B^+ \to \phi K^+$ decay using $180 pb^{-1}$ of data collected by the CDFII experiment at the Fermilab…

High Energy Physics - Experiment · Physics 2017-08-23 Marco Rescigno

We study the decay $B^\pm\to \phi K^{\ast\pm}$, followed by the decay of the outgoing vector mesons into two pseudoscalars. The analysis of angular distributions of the decay products is shown to provide useful information about the…

High Energy Physics - Phenomenology · Physics 2009-01-07 L. N. Epele , D. Gomez Dumm , A. Szynkman

We introduce parametrizations of hadronic three-body $B$ and $D$ weak decay amplitudes that can be readily implemented in experimental analyses and are a sound alternative to the simplistic and widely used sum of Breit-Wigner type…

High Energy Physics - Phenomenology · Physics 2017-12-20 D. Boito , J. -P. Dedonder , B. El-Bennich , R. Escribano , R. Kaminski , L. Lesniak , B. Loiseau

In this work, we studied the quasi-two-body decays $B_{(s)} \to \psi [K^*(892), K^*(1410),$ $K^*(1680)] \to \psi K\pi$ by employing the perturbative QCD (PQCD) factorization approach, where the charmonia $\psi$ represents $J/\psi$ and…

High Energy Physics - Phenomenology · Physics 2020-05-13 Ya Li , Zhou Rui , Zhen-Jun Xiao

We investigate the physics potential of the annihilation decays $\bar{B}^0_{s,d} \to J/\psi$ $\gamma$ in the Standard Model and beyond. In naive factorization approach, the branching ratios are estimated to be $\mathcal{B}(\bar{B}^0_s \to…

High Energy Physics - Phenomenology · Physics 2016-09-06 Gongru Lu , Rumin Wang , Yadong Yang

QCD sum rules are used to estimate the flavour SU(3)-symmetry violation in two-body B decays to pions and kaons. In the factorizable amplitudes the SU(3)-violation manifests itself in the ratio of the decay constants f_K/f_pi and in the…

High Energy Physics - Phenomenology · Physics 2009-11-10 Alexander Khodjamirian , Thomas Mannel , Martin Melcher

In this paper, we perform fits to $B \to PP$ decays, where $B = \{B^0, B^+, B_s^0\}$ and the pseudoscalar $P = \{\pi, K\}$, under the assumption of flavor SU(3) symmetry [SU(3)$_F$]. Although the fits to $\Delta S=0$ or $\Delta S=1$ decays…

High Energy Physics - Phenomenology · Physics 2024-11-22 Raphaël Berthiaume , Bhubanjyoti Bhattacharya , Rida Boumris , Alexandre Jean , Suman Kumbhakar , David London

Using flavor SU(3) symmetry, we perform a model-independent analysis of charmless $\bar B_{u,d} (\bar B_s) \to PP, ~PV$ decays. All the relevant topological diagrams, including the presumably subleading diagrams, such as the QCD- and…

High Energy Physics - Phenomenology · Physics 2015-03-19 Hai-Yang Cheng , Sechul Oh