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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…

高能物理 - 唯象学 · 物理学 2016-08-25 Yaw-Hwang Chen , Hai-Yang Cheng , B. Tseng , Kwei-Chou Yang

Using data from the B factories and the Tevatron, we perform tests of how well non-leptonic B decays of the kind B -> D^{(*)}_{(s)} P, where P is a pion or kaon, are described within the factorization framework. We find that factorization…

高能物理 - 唯象学 · 物理学 2015-03-17 Robert Fleischer , Nicola Serra , Niels Tuning

Polarized $\Lambda_b \to \Lambda \gamma$ decays at the Z pole are shown to be well suited for probing a large variety of New Physics effects. A new observable is proposed, the angular asymmetry between the $\Lambda_b$ spin and photon…

高能物理 - 唯象学 · 物理学 2009-11-07 G. Hiller , A. Kagan

With a sample of approximately 89 million BBbar pairs collected with the BABAR detector, we perform a search for B meson decays into pairs of charmless vector mesons (phi, rho, and K*). We measure the branching fractions, determine the…

高能物理 - 实验 · 物理学 2008-11-26 The BABAR Collaboration , B. Aubert

Two-body charmless hadronic B decays involving a light tensor meson in the final states are studied in the perturbative QCD approach based on $k_T$ factorization. From our calculations, we find that the decay branching ratios for color…

高能物理 - 唯象学 · 物理学 2013-05-30 Zhi-Tian Zou , Xin Yu , Cai-Dian Lu

We study the $B(B_{s})\rightarrow D_{(s)}(\bar{D}_{(s)})\,T$ and $D_{(s)}^{\ast}(\bar{D}_{(s)}^{*})\,T$ decays in perturbative QCD approach, where T denotes a light tensor meson. In addition to the branching ratios, we also give predictions…

高能物理 - 唯象学 · 物理学 2012-09-18 Zhi-Tian Zou , Xin Yu , Cai-Dian Lu

We investigate the role of R-parity violating interaction in the non-leptonic decays of B mesons into two light mesons B --> PP. The decay amplitudes are calculated using the QCD improved factorization method. Using the combined data on B…

高能物理 - 唯象学 · 物理学 2011-07-19 Dilip Kumar Ghosh , Xiao-Gang He , Bruce H. J. McKellar , Jian-Qing Shi

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…

高能物理 - 唯象学 · 物理学 2016-08-25 Yaw-Hwang Chen , Hai-Yang Cheng , B. Tseng

In this paper, we studied the charmless $B_{c}\to VV$ ($V$ denotes the light ground $\rm SU(3)$ vector meson) decays within the framework of QCD factorization. In the evaluation, two different schemes for regulating the end-point divergence…

高能物理 - 唯象学 · 物理学 2017-07-28 Qin Chang , Na Wang , Junfeng Sun , Lin Han

The two-body hadronic decays of B mesons into pseudoscalar and axial vector mesons are studied within the framework of QCD factorization. The light-cone distribution amplitudes (LCDAs) for $^3P_1$ and $^1P_1$ axial-vector mesons have been…

高能物理 - 唯象学 · 物理学 2008-11-26 Hai-Yang Cheng , Kwei-Chou Yang

Motivated by the recent LHCb results of lepton flavour violation on b decays into s and b decays into c transitions we study the lepton flavour violating (LFV) baryonic decays {Lambda}_b decays into {Lambda}l_i^+ l_j^- in non-universal Z^'…

高能物理 - 唯象学 · 物理学 2023-10-18 S. Biswas , P. Nayek , P. Maji , S. Sahoo

We study the T violating effects in the baryonic decays of $\Lambda_b\to\Lambda l^+l^- (l=e ,\mu)$ with polarized $\Lambda$. We show that the transverse $\Lambda$ polarizations in these baryonic decays could be as large as 50% in CP…

高能物理 - 唯象学 · 物理学 2008-11-26 Chuan-Hung Chen , C. Q. Geng , J. N. Ng

We investigate nonfactorizable contributions to two-body hadronic decays of the charmed mesons to a pseudoscalar meson and a vector meson in Cabibbo-favored mode. Employing SU(3)-flavor symmetry for the nonfactorizable matrix elements, we…

高能物理 - 唯象学 · 物理学 2007-05-23 K. K. Sharma , A. C. Katoch , R. C. Verma

In the light of recent experimental data from the CLEO Collaboration we study, the decays of B mesons to a pair of pseudoscalar (P) mesons, and a vector (V) meson and a pseudoscalar meson, in the framework of factorization. In order to…

高能物理 - 唯象学 · 物理学 2009-10-31 B. Dutta , Sechul Oh

We examine the validity of the generalized factorization method and calculate the angular correlations in the charmful three-body baryonic decays of $\bar B^0\to \Lambda \bar p D^{(*)+}$. With the timelike baryonic form factors newly…

高能物理 - 唯象学 · 物理学 2016-03-02 Y. K. Hsiao , C. Q. Geng

We analyze charmless two-body non-leptonic B decays $B \to PP, PV$ under the framework of factorization assisted topological amplitude approach, where $P(V)$ denotes a light pseudoscalar (vector) meson. Compared with the conventional flavor…

高能物理 - 唯象学 · 物理学 2017-03-08 Si-Hong Zhou , Qi-An Zhang , Wei-Ran Lyu , Cai-Dian Lü

Some flavor SU(3) results are presented for decays of the $\Lambda_b$ baryon into non-charmed final states $PB$, where $P$ is a pseudoscalar mesons and $B$ is a spin-1/2 baryon. Although these relations are among amplitudes and hence not…

高能物理 - 唯象学 · 物理学 2014-02-12 Michael Gronau , Jonathan L. Rosner

Motivated by recent data on B-> p pbar K decay, we study various charmless three-body baryonic B decay modes, including Lambda pbar pi, Sigma0 pbar pi, p pbar pi, p pbar Kbar0, in a factorization approach. These modes have rates of order…

高能物理 - 唯象学 · 物理学 2009-11-07 Chun-Khiang Chua , Wei-Shu Hou , Shang-Yuu Tsai

Global fits to charmless B --> PP decays in the framework of flavor SU(3) symmetry are updated and improved without reference to the \sin2\beta measured from the charmonium decay modes. Fit results directly constrain the (\bar\rho,\bar\eta)…

高能物理 - 唯象学 · 物理学 2011-03-23 Cheng-Wei Chiang , Yu-Feng Zhou

We present a detailed study of charmless two-body B decays into final states involving two vector mesons (VV) or two axial-vector mesons (AA) or one vector and one axial-vector meson (VA), within the framework of QCD factorization, where…

高能物理 - 唯象学 · 物理学 2014-11-18 Hai-Yang Cheng , Kwei-Chou Yang