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Based upon flavor SU(3) symmetry, we perform global fits to charmless B decays into one pseudoscalar meson and one vector meson in the final states. We consider different symmetry breaking schemes and find that the one implied by na{\"i}ve…

High Energy Physics - Phenomenology · Physics 2009-03-27 Cheng-Wei Chiang , Yu-Feng Zhou

The angular analysis of exclusive rare B-meson decays via intermediate vector mesons V into 4-body final states of two pseudo-scalars P_1, P_2 and a pair of light leptons l = e, mu offers a large set of observables. They can be used to test…

High Energy Physics - Phenomenology · Physics 2015-05-28 Christoph Bobeth , Gudrun Hiller , Danny van Dyk

The fully differential angular distribution for the rare flavor-changing neutral current decay {\bar B}_d^0 -> {\bar K}^{*0} (-> K^- \pi^+) e+ e- is studied. The emphasis is placed on accurate treatment of the contribution from the…

High Energy Physics - Phenomenology · Physics 2015-03-19 Alexander Yu. Korchin , Vladimir A. Kovalchuk

We demonstrate that time-dependent studies of angular distributions for $B_s$ decays caused by $\bar b\to\bar cu\bar s$ quark-level transitions extract cleanly and model-independently the CKM angle $\gamma$. This CKM angle could be cleanly…

High Energy Physics - Phenomenology · Physics 2009-03-09 Robert Fleischer , Isard Dunietz

We study the $B$ meson spectroscopy allowing the mixture of conventional $P$ wave quark-antiquark states and four-quark components. A similar picture was used to describe the new $D_J$ and $D_{sJ}$ open charm mesons. The four-quark…

High Energy Physics - Phenomenology · Physics 2008-11-26 J. Vijande , A. Valcarce , F. Fernandez

We present recent results on charm physics at the Belle and Belle II experiments, covering measurements of charm lifetimes, branching fractions of the decays of charmed mesons and baryons and the decay asymmetry parameters of two-body…

High Energy Physics - Experiment · Physics 2024-05-28 Longke Li

BABAR and Belle measurements of branching fractions, rate asymmetries and angular observables in the decay modes B \to K(*)l+l- are reviewed and new results from CDF on B \to K(*){\mu}+{\mu}- branching fractions and angular observables are…

High Energy Physics - Experiment · Physics 2011-01-04 Gerald Eigen

We provide a systematic study of charmless $B_s \to PP, PV, VV$ decays ($P$ and $V$ denote pseudoscalar and vector mesons, respectively) based on an approximate six-quark operator effective Hamiltonian from QCD. The calculation of the…

High Energy Physics - Phenomenology · Physics 2015-05-28 Fang Su , Yue-Liang Wu , Ci Zhuang , Yi-Bo Yang

We present recent results on time integrated and time dependent CP violation for charmless hadronic B decays using BABAR detector at the PEP-II B-factory.

High Energy Physics - Experiment · Physics 2019-08-14 Emanuele Di Marco

The results of several studies of charmed mesons and baryons at BABAR are presented. First, searches for the rare decays D0 --> l+ l- are presented and new upper limits on these processes are established. Second, a measurement of the…

High Energy Physics - Experiment · Physics 2017-08-23 M. J. Charles

Using the general factorization approach, we present a detailed investigation for the branching ratios, CP asymmetries and longitudinal polarization fractions in all charmless hadronic $B \to VV$ decays (except for the pure annihilation…

High Energy Physics - Phenomenology · Physics 2008-11-26 Shou-Shan Bao , Fang Su , Yue-Liang Wu , Ci Zhuang

It was recently pointed out that inclusive B^0(t) decays could show CP violation. The totally inclusive asymmetry is expected to be tiny [O(10^{-3})] because of large cancellations among the asymmetries in the charmless, single charm and…

High Energy Physics - Phenomenology · Physics 2014-11-17 Isard Dunietz

Weak decays of beauty baryons like \Lambda_b (\bar\Lambda_b) into \Lambda (\bar\Lambda) and V (J^P = 1^-), where both decay products are polarized, offer interesting opportunities to perform tests of time reversal and CP violations and of…

High Energy Physics - Phenomenology · Physics 2009-02-10 E. Di Salvo , Z. J. Ajaltouni

We describe searches for B meson decays to the charmless vector-vector final states omega K* and omega rho in 89 million B-Bbar pairs produced in e+e- annihilation at sqrt(s)=10.58 GeV. We measure the following branching fractions in units…

High Energy Physics - Experiment · Physics 2008-11-26 The BABAR Collaboration , B. Aubert

We use QCD sum rules to estimate the universal form factors describing the semileptonic B decays into excited charmed resonances, such as the $1^-$ and $2^-$ states $D_1^{*}$ and $D_2^{*}$ belonging to the $s_\ell^P={3/2}^-$ heavy quark…

High Energy Physics - Phenomenology · Physics 2008-11-26 P. Colangelo , F. De Fazio , G. Nardulli

We analyze the two-body charmed $B$ meson decays $B_{u,d,s} \to D^{(*)}P(V)$ in the factorization assisted topological amplitude approach, where $P(V)$ denoting a light pseudoscalar (vector) meson. Different from the conventional…

High Energy Physics - Phenomenology · Physics 2016-05-30 Cai-Dian Lu , Si-Hong Zhou

We report measurements of branching fractions and time-dependent CP asymmetries in $B^{0} \to D^{+}D^{-}$ and $B^{0} \to D^{*\pm}D^{\mp}$ decays using a data sample that contains $(772 \pm 11)\times 10^6 B\bar{B}$ pairs collected at the…

High Energy Physics - Experiment · Physics 2013-05-30 Belle Collaboration , M. Röhrken , I. Adachi , H. Aihara , D. M. Asner , V. Aulchenko , T. Aushev , A. M. Bakich , M. Barrett , K. Belous , V. Bhardwaj , B. Bhuyan , M. Bischofberger , A. Bondar , G. Bonvicini , A. Bozek , M. Bračko , O. Brovchenko , T. E. Browder , M. -C. Chang , A. Chen , P. Chen , B. G. Cheon , K. Chilikin , I. -S. Cho , K. Cho , Y. Choi , J. Dalseno , Z. Doležal , Z. Drásal , A. Drutskoy , S. Eidelman , J. E. Fast , M. Feindt , V. Gaur , N. Gabyshev , A. Garmash , Y. M. Goh , J. Haba , H. Hayashii , Y. Horii , Y. Hoshi , W. -S. Hou , Y. B. Hsiung , H. J. Hyun , T. Iijima , A. Ishikawa , R. Itoh , M. Iwabuchi , Y. Iwasaki , T. Julius , J. H. Kang , T. Kawasaki , C. Kiesling , H. J. Kim , H. O. Kim , J. B. Kim , J. H. Kim , K. T. Kim , M. J. Kim , Y. J. Kim , K. Kinoshita , B. R. Ko , S. Koblitz , P. Kodyš , S. Korpar , R. T. Kouzes , P. Križan , P. Krokovny , B. Kronenbitter , T. Kuhr , T. Kumita , Y. -J. Kwon , S. -H. Lee , J. Li , Y. Li , J. Libby , C. Liu , Y. Liu , Z. Q. Liu , D. Liventsev , R. Louvot , K. Miyabayashi , H. Miyata , R. Mizuk , G. B. Mohanty , A. Moll , T. Mori , N. Muramatsu , Y. Nagasaka , E. Nakano , M. Nakao , Z. Natkaniec , S. Nishida , O. Nitoh , S. Ogawa , T. Ohshima , S. Okuno , S. L. Olsen , H. Ozaki , G. Pakhlova , C. W. Park , H. Park , H. K. Park , K. S. Park , T. K. Pedlar , R. Pestotnik , M. Petrič , L. E. Piilonen , A. Poluektov , M. Prim , K. Prothmann , M. Ritter , S. Ryu , H. Sahoo , Y. Sakai , T. Sanuki , Y. Sato , O. Schneider , C. Schwanda , A. J. Schwartz , K. Senyo , O. Seon , M. E. Sevior , M. Shapkin , C. P. Shen , T. -A. Shibata , J. -G. Shiu , B. Shwartz , A. Sibidanov , F. Simon , J. B. Singh , P. Smerkol , Y. -S. Sohn , A. Sokolov , E. Solovieva , S. Stanič , M. Starič , K. Sumisawa , T. Sumiyoshi , K. Trabelsi , M. Uchida , S. Uehara , Y. Unno , S. Uno , P. Urquijo , P. Vanhoefer , G. Varner , K. E. Varvell , V. Vorobyev , C. H. Wang , M. -Z. Wang , P. Wang , M. Watanabe , Y. Watanabe , K. M. Williams , E. Won , H. Yamamoto , Y. Yamashita , D. Zander , Z. P. Zhang , V. Zhilich , V. Zhulanov , A. Zupanc

Two-body charmless nonleptonic decays of B_u and B_d mesons are studied within the framework of generalized factorization in which the effective Wilson coefficients $c^{eff}_i$ are renormalization-scale and -scheme independent while…

High Energy Physics - Phenomenology · Physics 2016-08-25 Yaw-Hwang Chen , Hai-Yang Cheng , B. Tseng , Kwei-Chou Yang

We calculate the hard-scattering kernels relevant to the negative-helicity decay amplitude in B decays to two vector mesons in the framework of QCD factorisation. We then perform a comprehensive analysis of the 34 B->VV decays, including…

High Energy Physics - Phenomenology · Physics 2008-11-26 Martin Beneke , Johannes Rohrer , Deshan Yang

We discuss how the angular distribution of lepton pairs from decays of vector mesons depends on the choice of reference frame, and provide a geometrical description of the transformations of the coefficients of the angular distribution.…

High Energy Physics - Phenomenology · Physics 2011-02-18 Sandro Palestini