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Related papers: Extracting the CKM phase angle \gamma(\equiv \phi_…

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We discuss some aspects of the search for CP asymmetry in the three body B decays, revealed through the interference among neighbor resonances in the Dalitz plot. We propose a competitive method to extract the CKM $\gamma$ angle combining…

High Energy Physics - Phenomenology · Physics 2013-05-29 Ignacio Bediaga , Gabriel Guerrer , Jussara M. de Miranda

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

We suggest two methods (based on flavor SU(3) symmetry) to determine the CKM angle $\gamma$ using the decays $B_d$, $B^+ \to K \eta (\eta')$ and $B_s \to \pi \eta (\eta')$, respectively. Rescattering effects are partly included -- we…

High Energy Physics - Phenomenology · Physics 2010-11-23 K. Agashe , N. G. Deshpande

A new and simple procedure to measure the angle $\gamma$ from $B^{\pm} \to \pi^{\pm}\pi^+\pi^-$ and $B^{\pm} \to K^{\pm}\pi^+\pi^-$ decays using SU(3) symmetry is presented. It is based on a full Dalitz plot analysis of these decays. All…

High Energy Physics - Phenomenology · Physics 2010-11-23 R. E. Blanco , C. Gobel , R. Mendez-Galain

We discuss a method to extract the CKM $\gamma$ angle combining Dalitz plot analysis of $B^{\pm} \to K^{\pm} \pi^+ \pi^-$ and untagged $B^0$, $\bar B^0 \to K_s \pi^+ \pi^-$. The method also allows obtaining the ratio and phase difference…

High Energy Physics - Phenomenology · Physics 2007-05-23 Ignacio Bediaga , Gabriel Guerrer , Jussara M. de Miranda

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

The decays $B_d\to \pi^+ \pi^-$ and $B_s\to K^+ K^-$ are related to each other by interchanging all down and strange quarks, i.e. through the $U$-spin flavour symmetry of strong interactions. A completely general parametrization of the…

High Energy Physics - Phenomenology · Physics 2010-11-23 Robert Fleischer

The decays $B_d\to\pi^+\pi^-$ and $B_s\to K^+K^-$ provide an interesting strategy to extract the CKM angle $\gamma$ at ``second-generation'' $B$-physics experiments of the LHC era. A variant for ``first-generation'' experiments can be…

High Energy Physics - Phenomenology · Physics 2010-11-23 Robert Fleischer

The weak phase $\gamma$ is extracted from three-body charmless decays of $B$ mesons following a method proposed by Bhattacharya, Imbeault \& London. The result is obtained by combining the BABAR amplitude analyses for the processes $B^0…

High Energy Physics - Phenomenology · Physics 2019-06-26 Emilie Bertholet , Eli Ben-Haim , Bhubanjyoti Bhattacharya , Matthew Charles , David London

The decays $B_d\to\pi^\mp K^\pm$ and $B^\pm\to\pi^\pm K$ provide interesting constraints on the angle $\gamma$ of the unitarity triangle of the CKM matrix. It is shown that bounds on $\gamma$ can also be obtained from the time evolution of…

High Energy Physics - Phenomenology · Physics 2014-11-17 Robert Fleischer

Using the B{\sc a}B{\sc ar}\ measurements of the Dalitz plots for $B^0 \to K^+\pi^0\pi^-$, $B^0 \to K^0\pi^+\pi^-$, $B^+ \to K^+\pi^+\pi^-$, $B^0 \to K^+ K^0 K^-$, and $B^0 \to K^0 K^0 {\bar K}^0$ decays, we demonstrate that it is possible…

High Energy Physics - Phenomenology · Physics 2013-12-23 Bhubanjyoti Bhattacharya , Maxime Imbeault , David London

We present a method for measuring the weak phase gamma using isospin analysis of three body B decays into K pi pi channels. Differential decay widths and time dependent asymmetry in B_d -> K_s pi^+pi^- mode needs to be measured into even…

High Energy Physics - Phenomenology · Physics 2009-11-07 N. G. Deshpande , Nita Sinha , Rahul Sinha

Dighe, Gronau and Rosner have shown that, by assuming SU(3) flavor symmetry and first-order SU(3) breaking, it is possible to extract the CP angles \alpha and \gamma from measurements of the decay rates of B_d^0(t) --> \pi^+\pi^-, B_d^0 -->…

High Energy Physics - Phenomenology · Physics 2011-02-01 C. S. Kim , D. London , T. Yoshikawa

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

Several new strategies to extract CKM phases, including a determination of $\gamma$ from $B_{s(d)}\to J/\psi K_S$ decays and a general approach, which makes use of the angular distributions of certain $B_{d,s}$ modes, such as $B_d\to J/\psi…

High Energy Physics - Phenomenology · Physics 2007-05-23 Robert Fleischer

To date, the weak-phase $\gamma$ has been measured using two-body $B$-meson decays such as $B\to D K$ and $B\to D\pi$, whose amplitudes contain only tree-level diagrams. But $\gamma$ can also be extracted from three-body charmless hadronic…

High Energy Physics - Phenomenology · Physics 2018-11-28 Bhubanjyoti Bhattacharya , David London

We propose a new method to extract the CP violating weak phase $\gamma$ in the CKM paradigm of the Standard Model, using $B^- \to D^0 \pi^- \to f \pi^-$ and $B^- \to \bar D^0 \pi^- \to f \pi^-$ decays, where $f$ are final states such as…

High Energy Physics - Phenomenology · Physics 2016-11-23 C. S. Kim , Sechul Oh

Utilizing all the experimental measured charmless $B \to PP$, $PV$ decay modes, where $P(V)$ denotes a light pseudoscalar (vector) meson, we extract the CKM angle $\gamma$ by global fit. All the unknown hadronic parameters are fitted with…

High Energy Physics - Phenomenology · Physics 2020-08-26 Si-Hong Zhou , Cai-Dian Lu

A new method to extract the weak phase $\gamma$ is suggested by exploiting B ---> D K^{(*)} decay modes that are not Cabibbo suppressed, using the isospin relations, and ignoring the annihilation diagram as usual. Assuming $3 \times 10^8…

High Energy Physics - Phenomenology · Physics 2009-12-30 Ji-Ho Jang , Pyungwon Ko

We study a relation between the weak phase $\gamma$ and the rates and CP asymmetries of several $K \pi$ decays of $B^+$, $B^0$, and $B_s$, emphasizing the impact of the latter measurements. Current data indicate large SU(3) breaking in the…

High Energy Physics - Phenomenology · Physics 2008-11-26 Cheng-Wei Chiang , Michael Gronau , Jonathan L. Rosner
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