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Related papers: CP Violating Rate Difference Relations for $B\to P…

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B decays are a subject of active research since they provide useful information on the dynamics of strong and electroweak interactions for testing the Standard Model (SM) and models beyond and are ideally suited for a critical analysis of…

High Energy Physics - Phenomenology · Physics 2007-10-23 Marina--Aura Dariescu , Ciprian Dariescu

We derive several relations between CP violating rate differences $\Delta(B\to PV) = \Gamma(B\to PV) - \Gamma(\bar B \to \bar P \bar V)$ for charmless $B\to P V$ decays in the Standard Model using SU(3) flavor symmetry. It is found that…

High Energy Physics - Phenomenology · Physics 2014-11-17 N. G. Deshpande , Xiao-Gang He , Jian-Qing Shi

The LHCb collaboration has recently measured the first direct CP violation in $B^0_s$ decays with a rate asymmetry $A_{CP}(B^0_s\to K^- \pi^+)$ given by $0.27 \pm 0.04(stat)\pm 0.01(syst)$. At the same time they also made the most precise…

High Energy Physics - Phenomenology · Physics 2015-06-16 Xiao-Gang He , Siao-Fong Li , Hsiu-Hsien Lin

The recent LHCb measurements of the $B_s \to K^-\pi^+$ and $B_s \to K^+K^-$ rates and CP asymmetries are in agreement with U-spin expectations from $B_d \to K^+\pi^-$ and $B_d \to \pi^+\pi^-$ results. We derive the complete set of isospin,…

High Energy Physics - Phenomenology · Physics 2015-06-16 Yuval Grossman , Zoltan Ligeti , Dean J. Robinson

In this paper we study CP violation in $B\to PP$ decays in the Standard Model using SU(3) flavor symmetry. With SU(3) symmetry only seven hadronic parameters are needed to describe $B\to PP$ decays in the SM when annihilation contributions…

High Energy Physics - Phenomenology · Physics 2014-11-17 Han-Kuei Fu , Xiao-Gang He , Yu-Kuo Hsiao , Jian-Qing Shi

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

The decays $B \to PP$, where $P$ denotes a pseudoscalar meson, are analyzed, with emphasis on charmless final states. Numerous triangle relations for amplitudes hold within SU(3) symmetry, relating (for example) the decays $B^+ \to \pi^+…

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

The decays of $B$ mesons to a pair of charmless pseudoscalar mesons ($PP$ decays) or to a vector and pseudoscalar meson ($VP$ decays) have been analyzed within the framework of flavor SU(3) symmetry and the Kobayashi-Maskawa mechanism of CP…

High Energy Physics - Phenomenology · Physics 2009-11-10 Denis A. Suprun

Several baryons containing a heavy b-quark, the b-baryons, have been discovered. The charmless two-body decays of b-baryons can provide a new platform for CP violating studies in a similar way as charmless two-body decays of B-meson. In…

High Energy Physics - Phenomenology · Physics 2015-09-02 Min He , Xiao-Gang He , Guan-Nan Li

Several baryons containing a heavy b-quark have been discovered. The decays of these states provide new platform for testing the standard model (SM). We study $CP$ violation in SM for charmless two-body decays of the flavor $SU(3)$…

High Energy Physics - Phenomenology · Physics 2015-09-30 Xiao-Gang He , Guan-Nan Li

TThe LHCb collaboration has recently reported evidence for non-zero CP asymmetries in $B^+$ decays into $\pi^+ K^+ K^-,\; \pi^+\pi^+\pi^-,\; K^+ K^+ K^- $ and $K^+\pi^+\pi^-$. The branching ratios for these decays have also been measured…

High Energy Physics - Phenomenology · Physics 2015-06-16 Dong Xu , Guan-Nan Li , Xiao-Gang He

Recently, $B\to PP$ decays ($B = \{B^0, B^+, B_s^0\}$, $P = \{ \pi, K \}$) were analyzed under the assumption of flavor SU(3) symmetry (SU(3)$_F$). Although the individual fits to $\Delta S=0$ or $\Delta S=1$ decays are good, it was found…

High Energy Physics - Phenomenology · Physics 2025-09-17 Bhubanjyoti Bhattacharya , Marianne Bouchard , Luke Hudy , Alexandre Jean , David London , Christopher MacKenzie

We present estimates of the direct (in decay amplitudes) and indirect (mixing- induced) CP-violating asymmetries in the non-leptonic charmless two-body decay rates for $B \to PP$, $B \to PV$ and $B \to VV$ decays and their charged…

High Energy Physics - Phenomenology · Physics 2016-08-25 A. Ali , G. Kramer , C. D. Lu

We prove that CP violating rate difference $\Delta (\bar B^0 \rightarrow \pi^+\pi^-) = \Gamma (\bar B^0 \rightarrow \pi^+\pi^-) - \Gamma ( B^0 \rightarrow \pi^-\pi^+)$ is related to $\Delta (\bar B^0 \rightarrow \pi^+ K^-) = \Gamma (\bar…

High Energy Physics - Phenomenology · Physics 2008-11-26 N. G. Deshpande , Xiao-Gang He

We calculated the CP averaged branching ratios and CP-violating asymmetries of two-body charmless hadronic Bs->PP,PV decays with the QCDF approach, including the contributions from the chirally enhanced power corrections and weak…

High Energy Physics - Phenomenology · Physics 2009-05-11 Junfeng Sun , Guohuai Zhu , Dongsheng Du

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 talk, I describe a global fit to $B \to PP$ decays, where $B = \{B^0, B^+, B_s^0\}$ and the pseudoscalar $P = \{\pi, K\}$, under the assumption of flavour SU(3) symmetry [SU(3)$_F$]. It is found that the individual fits to $\Delta…

High Energy Physics - Phenomenology · Physics 2024-01-30 David London

CP violation from physics beyond the Standard Model is investigated in $B_{l4}$ decays: $B\to D\pi l\bar{\nu}_l$. The semileptonic $B$-meson decay to a $D$-meson with an emission of single pion is analyzed with heavy quark effective theory…

High Energy Physics - Phenomenology · Physics 2009-10-31 C. S. Kim , Jake Lee , W. Namgung

Direct CP violation in the hadronic charm decays provides a good testing ground for the Kobayashi-Maskawa mechanism in the Standard Model. Any significant deviations from the expectation would be indirect evidence of physics beyond the…

High Energy Physics - Phenomenology · Physics 2019-11-20 Hai-Yang Cheng , Cheng-Wei Chiang

CP violation from physics beyond the Standard Model is investigated in $B_{l4}$ decays: $B\to D\pi l\bar{\nu}_l$. In the decay process, we include various excited states as intermediate states decaying to the final hadrons, $D+\pi$. We…

High Energy Physics - Phenomenology · Physics 2016-08-25 C. S. Kim , Jake Lee , W. Namgung
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