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Related papers: Using SU(3) Relations to bound the CP Asymmetries …

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We consider CP asymmetries in neutral $B$ meson decays to $\eta' K_S$, $\phi K_S$, and $K^+ K^- K_S$. We use SU(3) relations to estimate or bound the contributions to these amplitudes proportional to $V_{ub}^*V_{us}$. Such contributions…

High Energy Physics - Phenomenology · Physics 2014-11-17 Yuval Grossman , Zoltan Ligeti , Yosef Nir , Helen Quinn

Flavor SU(3) is used to constrain the coefficients of $\sin\Delta mt$ and $\cos\Delta mt$ in the time-dependent CP asymmetry of $B^0 \to \eta' K_S$. Correlated bounds in the $(S_{\eta' K}, C_{\eta' K})$ plane are derived, by using recent…

High Energy Physics - Phenomenology · Physics 2009-11-10 Michael Gronau , Jonathan L. Rosner , Jure Zupan

We use the approximate SU(3) flavor symmetry of the strong interaction to put bounds on the CP asymmetries in $b \to s$ decays of the $B^0_d$ and $B^+_u$ mesons. We extend the work of \cite{Grossman:2003qp} to include all relevant $B \to…

High Energy Physics - Phenomenology · Physics 2007-05-23 Guy Raz

The CP asymmetry in the $B \to K_S K_S K_S$ decay is being measured by the two B factories. A large deviation of the CP asymmetry $S_{K_S K_S K_S}$ from $-S_{\psi K_S}$ and/or of $C_{K_S K_S K_S}$ from zero would imply new physics in $b \to…

High Energy Physics - Phenomenology · Physics 2009-11-11 Guy Engelhard , Yosef Nir , Guy Raz

The relation between the branching ratios and direct CP asymmetries of B --> K pi decays and the angle gamma of the CKM unitarity triangle is studied numerically in the general framework of the SU(3) approach, with minimal assumptions about…

New rate measurements of $B^0$ decays into $\pi^0\pi^0, \pi^0\eta, \pi^0\eta', \eta\eta, \eta\eta', \eta'\eta'$ and $K^+ K^-$ are used in conjunction with flavor SU(3) to constrain the coefficients $S$ and $C$ of $\sin\Delta mt$ and…

High Energy Physics - Phenomenology · Physics 2008-11-26 Michael Gronau , Jonathan L. Rosner , Jure Zupan

We study CP asymmetries in rare B decays within supersymmetry with a U(2)^3 flavour symmetry, motivated by the SUSY flavour and CP problems, the hierarchies in the Yukawa couplings and the absence so far of any direct evidence for SUSY.…

High Energy Physics - Phenomenology · Physics 2015-05-30 Riccardo Barbieri , Paolo Campli , Gino Isidori , Filippo Sala , David M. Straub

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

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

Theoretical uncertainties with the time-dependent CP asymmetries $\Delta S$ and $A_{\rm CP}$ in $B^0\to K^+K^-K_S$, $K_SK_SK_S$ and $K_S\pi^0\pi^0$ decays are discussed. In order to have a reliable estimate of CP asymmetries, it is very…

High Energy Physics - Phenomenology · Physics 2007-05-23 Hai-Yang Cheng

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)…

High Energy Physics - Phenomenology · Physics 2011-03-23 Cheng-Wei Chiang , Yu-Feng Zhou

Flavor SU(3) is used for studying the time-dependent CP asymmetry in $B^0 \to \pi^0 K_S$ by relating this process to $B^0\to \pi^0\pi^0$ and $B^0 \to K^+K^-$. We calculate correlated bounds on $S_{\pi K} - \sin 2\beta$ and $C_{\pi K}$, with…

High Energy Physics - Phenomenology · Physics 2010-04-05 Michael Gronau , Yuval Grossman , Jonathan L. Rosner

A U(2)^3 flavour symmetry acting on the first two generations of quarks partially explains the hierarchies of the yukawa couplings, and provides a natural embedding for Supersymmetry with heavier first two generations, where collider…

High Energy Physics - Phenomenology · Physics 2012-09-21 Filippo Sala

We analyse $D$ decays to two pseudoscalars $(\pi,K)$ assuming the dominant source of $\mathrm{SU}(3)_F$ breaking lies in final state interactions. We obtain an excellent agreement with experimental data and are able to predict CP violation…

High Energy Physics - Phenomenology · Physics 2019-06-24 Franco Buccella , Ayan Paul , Pietro Santorelli

I present a consistent way to include $\eta$-$\eta^\prime$ mixing in global analyses of two-body decays of heavy hadrons employing the approximate flavour-SU(3) symmetry of QCD. The framework is applied to $D\to P \eta^\prime$ decays, where…

High Energy Physics - Phenomenology · Physics 2025-04-02 Ulrich Nierste

We carry out a systematic flavor SU(3) analysis of D-meson decays including the leading order symmetry breaking effects. We find that SU(3) breaking can easily account for the recent LHCb measurement of the difference in CP asymmetries in…

High Energy Physics - Phenomenology · Physics 2012-05-28 David Pirtskhalava , Patipan Uttayarat

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 perform a global fits to charmless $B \to PP$ decays which independently constrain the $(\bar\rho,\bar\eta)$ vertex of the unitarity triangle. The fitted amplitudes and phase are used to predict the branching ratios and CP asymmetries of…

High Energy Physics - Phenomenology · Physics 2008-11-26 Cheng-Wei Chiang , Yu-Feng Zhou

In the framework of SU(3) symmetry, we present a general analysis of $B$ meson decays into two lighter uncharmed mesons (both pairs of pseudoscalar mesons and pairs of vector and pseudoscalar mesons). From the analysis we find constraints…

High Energy Physics - Phenomenology · Physics 2007-05-23 Gil Paz

We investigate flavor physics at present and future B factories in order to distinguish supersymmetric models. We evaluate CP asymmetries in various B decay modes, Delta M(Bd), Delta M(Bs), and epsilon_K in three supersymmetric models, i.e.…

High Energy Physics - Phenomenology · Physics 2007-05-23 Toru Goto , Yasuhiro Okada , Yasuhiro Shimizu , Tetsuo Shindou , Minoru Tanaka
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