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Direct CP violation in the hadronic decays $\Bar{B}^{0} \to \pi^{+}\pi^{-} \pi^{0}$ is investigated near the peak of the $\rho^{0}$ taking into account the effect of $\rho - \omega$ mixing. Branching ratios for processes $B^{\pm,0} \to…

High Energy Physics - Phenomenology · Physics 2010-02-17 O. Leitner , X. -H. Guo , A. W. Thomas

It is well known that the final state interaction plays an important role in the decays of $B$-meson. The contribution of the final state interaction which is supposed to be long-distance effects, to the concerned processes can interfere…

High Energy Physics - Phenomenology · Physics 2008-11-26 Xiang Liu , Xue-Qian Li

We discuss several aspects of direct CP asymmetries in B decays, which are very useful in spite of hadronic uncertainties in asymmetry calculations. 1) Asymmetries in decays to $D^{(*)}K^{(*)}$, $\pi^+\pi^-, \rho^+\rho^-$, providing…

High Energy Physics - Phenomenology · Physics 2008-11-26 Michael Gronau

We show that, besides the usual short distance contribution for CP violation, final state interactions together with CPT invariance can play an important role in the recent observation of CP violation in three-body charmless $B^\pm$ decays.…

High Energy Physics - Phenomenology · Physics 2014-05-28 I. Bediaga , T. Frederico , O. Lourenço

Final state phases \delta_f and \delta_f' in B-> D pi, barD pi decays are shown to be equal i.e. \delta =\delta_f-\delta_f' = 0. Thus CP-violating asymmetry A(t) is independent of final state phases. The estimate for the phases \delta_f and…

High Energy Physics - Phenomenology · Physics 2009-11-10 Fayyazuddin

There exist many experimental indications that final-state interactions (FSIs) may play a prominent role not only in charmful B decays but also in charmless B ones. We examine the final-state rescattering effects on the hadronic B decay…

High Energy Physics - Phenomenology · Physics 2014-11-18 Hai-Yang Cheng , Chun-Khiang Chua , Amarjit Soni

We investigate in a phenomenological way, direct CP violation in the hadronic decays $B^{\pm,0} \to \pi^{+} \pi^{-} K^{\pm,0}$ where the effect of $\rho - \omega$ mixing is included. If $N_{c}^{eff}$ (the effective parameter associated with…

High Energy Physics - Phenomenology · Physics 2010-02-17 O. Leitner , X. -H. Guo , A. W. Thomas

The CP-violating asymmetries in the exclusive decay B->K^*l^+l^- (l=e,mu,tau) are predicted to be exceedingly small in the standard model (SM), thereby offering an opportunity to assess various new-physics scenarios. We derive quantitative…

High Energy Physics - Phenomenology · Physics 2011-03-23 F. Krüger , E. Lunghi

Direct CP violations in $B_{l4}$ decays ($B^\pm \to \pi^+\pi^- l^\pm {\nu}_l$) are investigated within the Standard Model (SM) and also in its extensions. In the decay processes, we include various excited states as intermediate states…

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

We give a brief review of direct $CP$ violation effects in charmless $B$ decays, both at the inclusive and at the exclusive level. It is emphasized that typical exclusive final states are composed of 2--4 $K$ or $\pi$'s, hence particle…

High Energy Physics - Phenomenology · Physics 2015-06-25 George W. S. Hou

We study the direct CP asymmetries in the decays of $B^0 \to \Xi_c^+ \overline{\Xi}_c^-$ and $B_s^0 \to \Lambda_c^+ \overline{\Lambda}_c^-$, emphasizing the critical role of final-state interactions (FSIs). In these channels, the small…

High Energy Physics - Phenomenology · Physics 2025-07-09 Chao-Qiang Geng , Xiang-Nan Jin , Chia-Wei Liu

We (re)examine CP violation in the decays B_d -> D K_s, where D represents D^0, D(bar), or one of their excited states. The quantity $\sin^2(2\beta + \gamma)$ can be extracted from the time-dependent rates for $B_d(t) -> {\bar D}^{**0} K_s$…

High Energy Physics - Phenomenology · Physics 2014-11-17 B. Kayser , D. London

We report measurements of time dependent decay rates for $B^0(\bar{B}^0) \to D^{(*)\mp}\pi^{\pm}$ decays and extraction of CP violation parameters containing $\phi_3$. Using fully reconstructed $D^{(*)}\pi$ events from a $140 {\rm fb}^{-1}$…

High Energy Physics - Experiment · Physics 2008-11-26 T. R. Sarangi

We study the implication of the time-dependent CP asymmetry in $B\to\pi^+\pi^-$ decays on the extraction of weak phases taking into account the precise measurement of $\sin 2\beta$, obtained from the ``gold-plated''mode $B\to J/\psi K_S$.…

High Energy Physics - Phenomenology · Physics 2010-11-23 A. Salim Safir

The $B \to \pi$ and $B \to K$ transitions involved in hadronic B decays are investigated in a phenomenological way through the framework of QCD factorization. By comparing our results with experimental branching ratios from the BELLE, BABAR…

High Energy Physics - Phenomenology · Physics 2010-02-17 O. Leitner , X. -H. Guo , A. W. Thomas

We show that final state interactions (FSI) within a CPT invariant two-channel framework can enhance the charge-parity (CP) violation difference between $D^0\to\pi^-\pi^+$ and $D^0\to K^-K^+$ decays up to the current experimental value.…

High Energy Physics - Phenomenology · Physics 2023-08-16 Ignacio Bediaga , Tobias Frederico , Patricia C Magalhães

CP asymmetries in B_d \to D^+D^-, D^{*+}D^-, D^+D^{*-} and D^{*+}D^{*-} decays are investigated with the help of the factorization approximation and isospin relations. We find that the direct CP violation is governed only by the…

High Energy Physics - Phenomenology · Physics 2009-10-31 Zhi-zhong Xing

Evidence of physics beyond the Standard Model (SM) of particle physics might be revealed through CP violation. Experimental results from BaBar, Belle, and most recently from LHCb are very interesting in this respect. It is important to…

High Energy Physics - Phenomenology · Physics 2015-04-20 Jihn E. Kim , Doh Young Mo , Soonkeon Nam

We consider $B^{\pm,0} \to \rho^0(\omega)h^{\pm,0}$, where $\rho^0(\omega)$ decays to $\pi^+\pi^-$ and $h$ is any hadronic final state, such as $\pi$ or $K$. We find a large direct CP asymmetry in B-meson decays via $\rho \omega$…

High Energy Physics - Phenomenology · Physics 2016-11-03 Ryoji Enomoto , Masaharu Tanabashi

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
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