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Related papers: Indications for Large Rescattering in Rare B Decay…

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The newly observed $\bar B^0 \to \bar K^0\pi^0$ mode is quite sizable while $\pi^-\pi^+$ is rather small. Data also hint at $\pi^-\pi^0 \gtrsim \pi^-\pi^+$. Though consistent with zero, central values of CP violating asymmetries in…

High Energy Physics - Phenomenology · Physics 2009-10-31 Wei-Shu Hou , Kwei-Chou Yang

The color-suppressed \bar B^0-> D^{(*)0}\pi^0, D^{(*)0}\eta, D^0\omega decay modes have just been observed for the first time. The rates are all larger than expected, hinting at the presence of final state interactions. Considering \bar…

High Energy Physics - Phenomenology · Physics 2009-11-07 Chun-Khiang Chua , Wei-Shu Hou , Kwei-Chou Yang

The current wealth of charmless B decay data may suggest the presence of final state rescattering. In a factorized amplitude approach, better fits are found by incorporating two SU(3) rescattering phase differences, giving delta ~ 65 degree…

High Energy Physics - Phenomenology · Physics 2009-11-07 Chun-Khiang Chua , Wei-Shu Hou , Kwei-Chou Yang

The significance of final-state interactions in B_d-->\pi\pi decays is phenomenologically demonstrated by taking elastic \pi\pi--\pi\pi and inelastic \pi\pi--D\bar{D} rescattering effects into consideration. We find that the present…

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

We discuss multichannel inelastic rescatterring effects in B decays into a pair $PP$ of pseudoscalar mesons ($PP = \pi \pi$ or $K\bar{K}$). In agreement with short-distance models it is assumed that initially $B$ meson decays dominantly…

High Energy Physics - Phenomenology · Physics 2009-10-31 P. Zenczykowski

Using rotation in SU(3) space, a set of relations between various decay modes of B_{d} and B_{s} are derived. The decays bar{B}_{d}^{0}-> K^{*-}pi ^{+}(rho ^{+}K^{-}), bar{B}_{s}^{0}-> K^{*-}K^{+} are expressed in terms of decay parameters…

High Energy Physics - Phenomenology · Physics 2007-05-23 Fayyazuddin

Careful discussions are made on some points which are met in studying B decay final state interactions, taking the $B^0\to \pi^+ K^-$ process as an example. We point out that $\pi$--exchange rescatterings are not important, whereas for…

High Energy Physics - Phenomenology · Physics 2018-01-17 Zuo-Hong Li , Feng Yuan , Hanqing Zheng

Inelastic rescattering effects in B decays into a pair $PP$ of pseudoscalar mesons ($PP = \pi \pi$ or $K\bar{K}$) are discussed. It is assumed that $B$ meson decays through a short-distance tree-diagram process into two jet-like states…

High Energy Physics - Phenomenology · Physics 2007-05-23 P. Zenczykowski

Final-state interaction effects in charmless B_{u,d,s} to PP decays are studied. We investigate the B(bar)^0 to pi^+ pi^-, pi^0 pi^0 rates and the K pi direct CP violations, which lead to the so-called K pi puzzle in CP violation (Delta A).…

High Energy Physics - Phenomenology · Physics 2014-11-18 Chun-Khiang Chua

The first observation of $\bar{B}^0_d\to D^0\bar{K}^0$ and $\bar{B}^0_d\to D^0\bar{K}^{*0}$ transitions by the Belle Collaboration allows us to do a complete isospin analysis of $B\to DK^{(*)}$ decay modes. We find that their respective…

High Energy Physics - Phenomenology · Physics 2011-09-13 Zhi-zhong Xing

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

Several $B$ and $B_s$ decays have been observed which have been cited as evidence for exchange ($E$), penguin annihilation ($PA$) and annihilation ($A$) processes, such as $\bar b d \to \bar u u$, $\bar b s \to \bar u u$ and $\bar b u \to…

High Energy Physics - Phenomenology · Physics 2015-06-12 Michael Gronau , David London , Jonathan L. Rosner

We discuss all contributions from inelastic SU(3)-symmetric rescattering in B decays into a final pair of pseudoscalar mesons $PP = \pi \pi$, $K\bar{K}$, $\pi K$. FSI-induced modifications of amplitudes obtained from the quark-line approach…

High Energy Physics - Phenomenology · Physics 2014-11-17 P. Zenczykowski

Following the experimental results from LHCb on the rare decay $B^+_c \to K^-K^+\pi^+$, we investigate the possibility where this process is dominated by a double charm rescattering. The $B_c$ decay to double charm channels have a weak…

High Energy Physics - Phenomenology · Physics 2018-10-17 Ignacio Bediaga , Tobias Frederico , Patricia C Magalhaes

The LHCb Collaboration has recently reported the first observation of the decay $\bar B_s^0\to \Lambda_c^+\bar\Lambda_c^-$, along with measurements of the branching fractions for both $\bar B^0\to \Lambda_c^+\bar\Lambda_c^-$ and $\bar…

High Energy Physics - Phenomenology · Physics 2026-05-19 Zhu-Ding Duan , Xiao Huang , Dong-Hao Li , Run-Hui Li , Jian-Peng Wang , Fu-Sheng Yu

Surveying known hadronic rare B decays, we find that the factorization approximation can give a coherent account of $K\pi$, $\pi\pi$ and $\rho^0\pi^+$ data and give predictions for $\omega^0\pi^+$, $\rho\pi$ and $K^*\pi$ modes, {\it if…

High Energy Physics - Phenomenology · Physics 2009-10-31 Xiao-Gang He , Wei-Shu Hou , Kwei-Chou Yang

We study quasi-elastic rescattering effects in B_{u,d,s}(bar) to DP, D(bar)P decays, where P is a light pseudoscalar. The updated measurements of B_{u,d}(bar) to DP decays are used to extract the effective Wilson coefficients a^{eff}_1 ~…

High Energy Physics - Phenomenology · Physics 2008-11-26 Chun-Khiang Chua , Wei-Shu Hou

Three ways are compared of dealing with rescattering effects in $B^{\pm}\to K^0\pi^{\pm}$, in order to determine the weak phase $\gamma$ from these processes and $B^{\pm}\to K^{\pm}\pi^0$. We find that neglecting these contributions…

High Energy Physics - Phenomenology · Physics 2010-11-23 Michael Gronau , Dan Pirjol

Various new measurements in charmless $B_{u,d,s}\to PP$ modes, where $P$ is a low lying pseudoscalar meson, are reported by Belle and LHCb. These include the rates of $B^0\to\pi^0\pi^0$, $\eta\pi^0$, $B_s\to\eta'\eta'$, $B^0\to K^+K^-$ and…

High Energy Physics - Phenomenology · Physics 2018-05-30 Chun-Khiang Chua

We study two-body D -> PP decays, assuming that each decay process go through the bare amplitude followed by elastic SU(3) rescattering, where the bare amplitude consists of (i) the color-allowed and color-suppressed factorization…

High Energy Physics - Phenomenology · Physics 2009-11-11 Jr-Hau Lai , Kwei-Chou Yang
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