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We present a measurement of the decay amplitudes in B-->J/psi K^*(892) channels using 20.7 fb-1 of data collected at the Upsilon(4S) resonance with the BABAR detector at PEP-II. We measure a P-wave fraction R_perp = (16.0+/-3.2+/-1.4)% and…

High Energy Physics - Experiment · Physics 2010-05-28 B. Aubert , The BABAR Collaboration

We report recent results on $\phi_3$ measurement at the Belle collaboration. The analyses reported here are based on a large data sample that contains 657 million $B\bar{B}$ pairs collected with the Belle detector at the KEKB…

High Energy Physics - Experiment · Physics 2019-08-13 S. Bahinipati

Branching fraction measurements using B-meson decays to Kspi+pi- are presented. These measurements were obtained by analyzing a data sample of 88.9 million Y(4S) --> BB decays collected with the BaBar detector at the SLAC PEP-II…

High Energy Physics - Experiment · Physics 2009-09-29 B. Aubert , BABAR Collaboration

We present a summary of measurements sensitive to the CKM angles \phi_1 and \phi_2, performed by the Belle experiment using the final data sample of 772 \times 10^{6} $B\bar{B}$ pairs at the \Upsilon(4S) resonance produced at the KEK…

High Energy Physics - Experiment · Physics 2013-01-23 P. Vanhoefer

We search for the decays B- -> phi K- gamma and B0bar -> phi K0bar gamma in a data sample of 228 million BBbar pairs collected at the Upsilon(4S) resonance with the BaBar detector. We measure the branching fraction B(B- -> phi K- gamma) =…

High Energy Physics - Experiment · Physics 2010-03-19 The BABAR Collaboration , B. Aubert

We have searched for the Cabibbo-suppressed decay $\Lambda_c^+\to\phi p\pi^0$ in $e^+e^-$ collisions using a data sample corresponding to an integrated luminosity of 915 $\rm fb^{-1}$. The data were collected by the Belle experiment at the…

High Energy Physics - Experiment · Physics 2017-09-27 Belle Collaboration , B. Pal , A. J. Schwartz , I. Adachi , H. Aihara , S. Al Said , D. M. Asner , T. Aushev , R. Ayad , I. Badhrees , A. M. Bakich , V. Bansal , P. Behera , M. Berger , V. Bhardwaj , J. Biswal , A. Bobrov , A. Bozek , M. Bračko , T. E. Browder , D. Červenkov , V. Chekelian , A. Chen , B. G. Cheon , K. Chilikin , K. Cho , S. -K. Choi , Y. Choi , D. Cinabro , N. Dash , S. Di Carlo , Z. Doležal , Z. Drásal , S. Eidelman , T. Ferber , B. G. Fulsom , V. Gaur , N. Gabyshev , A. Garmash , P. Goldenzweig , E. Guido , T. Hara , K. Hayasaka , H. Hayashii , W. -S. Hou , C. -L. Hsu , K. Inami , A. Ishikawa , R. Itoh , W. W. Jacobs , I. Jaegle , H. B. Jeon , S. Jia , Y. Jin , D. Joffe , K. K. Joo , G. Karyan , Y. Kato , D. Y. Kim , J. B. Kim , K. T. Kim , S. H. Kim , Y. J. Kim , K. Kinoshita , P. Kodyš , S. Korpar , D. Kotchetkov , P. Krokovny , T. Kuhr , R. Kulasiri , Y. -J. Kwon , C. H. Li , L. Li , Y. Li , L. Li Gioi , J. Libby , D. Liventsev , M. Lubej , T. Luo , J. MacNaughton , D. Matvienko , M. Merola , K. Miyabayashi , H. Miyata , R. Mizuk , G. B. Mohanty , H. K. Moon , T. Mori , R. Mussa , E. Nakano , M. Nakao , T. Nanut , K. J. Nath , M. Nayak , M. Niiyama , S. Nishida , S. Ogawa , H. Ono , P. Pakhlov , G. Pakhlova , S. Pardi , C. -S. Park , S. Paul , T. K. Pedlar , R. Pestotnik , L. E. Piilonen , M. Ritter , A. Rostomyan , Y. Sakai , S. Sandilya , L. Santelj , T. Sanuki , V. Savinov , O. Schneider , G. Schnell , C. Schwanda , Y. Seino , K. Senyo , M. E. Sevior , T. -A. Shibata , J. -G. Shiu , F. Simon , A. Sokolov , E. Solovieva , M. Starič , J. F. Strube , M. Sumihama , T. Sumiyoshi , M. Takizawa , U. Tamponi , K. Tanida , F. Tenchini , M. Uchida , T. Uglov , S. Uno , C. Van Hulse , G. Varner , K. E. Varvell , A. Vinokurova , V. Vorobyev , C. H. Wang , M. -Z. Wang , X. L. Wang , M. Watanabe , Y. Watanabe , S. Watanuki , E. Widmann , E. Won , Y. Yamashita , H. Ye , J. Yelton , C. Z. Yuan , Z. P. Zhang , V. Zhilich , V. Zhukova , V. Zhulanov , A. Zupanc

We present the results of searches for rare B meson decays. The measurements use all or part of a data sample of about 88 million $\Upsilon(4S)\to B{\bar B}$ decays collected between 1999 and 2002 with the \babar detector at the PEP-II…

High Energy Physics - Experiment · Physics 2007-05-23 Paul C. Bloom

We report the first observation of the decay \bar{B0} -> D_s^+ Lambda \bar{p} with a statistical significance of 6.6 sigma. We measure Br(\bar{B0} -> Ds+ Lambda \bar{p}) = (2.9 \pm 0.7\pm 0.5 \pm 0.4)* 10^{-5}, where the first error is…

High Energy Physics - Experiment · Physics 2019-08-12 T. Medvedeva , R. Chistov

We present updated results on time-dependent CP-violating asymmetries in neutral B decays to several CP eigenstates. The measurements use a data sample of about 62 million Y(4S) --> B Bbar decays collected between 1999 and 2001 with the…

High Energy Physics - Experiment · Physics 2007-05-23 Shahram Rahatlou

Experimental studies of B -> D^(*) tau nu decays, are reported. The results are based on large data samples collected at the Upsilon(4S) resonance with the Belle detector at KEKB and the BABAR detector at the SLAC PEP-II asymmetric energy…

High Energy Physics - Experiment · Physics 2011-01-17 Andrzej Bozek

We use a sample of 384 million BBbar events collected with the Babar detector at the PEP-II e+e- collider to study angular distributions in the rare decays B -> K* l+l-, where l+l- is either e+e- or mu+mu-. For low dilepton invariant…

High Energy Physics - Experiment · Physics 2010-04-12 The BABAR Collaboration , B. Aubert

We have measured the time-dependent decay rate for the process $B \to J/\psi K^{*0}(892)$ in a sample of about 88 million $\Upsilon(4S) \to B\bar{B}$ decays collected with the BaBar detector at the PEP-II asymmetric-energy $B$ Factory at…

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

In a sample of 471 million BB events collected with the BABAR detector at the PEP-II e+e- collider we study the rare decays B -> K(*) l+ l-, where l+ l- is either e+e- or mu+mu-. We report results on partial branching fractions and isospin…

High Energy Physics - Experiment · Physics 2013-05-30 The BABAR Collaboration

We perform an amplitude analysis of B+- -> phi(1020) K*(892)+- decay with a sample of about 384 million BBbar pairs recorded with the BABAR detector. Overall, twelve parameters are measured, including the fractions of longitudinal f_L and…

High Energy Physics - Experiment · Physics 2010-04-08 The BABAR Collaboration , B. Aubert

New BABAR measurements are presented for the exclusive rare decays B -> K(*) l+ l- including branching fractions, isospin asymmetries, direct CP violation, and lepton flavor universality for dilepton masses below and above the J/psi…

High Energy Physics - Experiment · Physics 2008-07-28 G. Eigen

We present measurements of the branching fractions and charge asymmetries of B decays to all D(*)D(*) modes. Using 232 million BBbar pairs recorded on the Upsilon(4S) resonance by the BaBar detector at the e+e- asymmetric B factory PEP-II…

High Energy Physics - Experiment · Physics 2010-03-19 The BABAR Collaboration , B. Aubert

We search for B+/- --> [K^-/+ pi+/-]_D K+/- decays, where [K-/+ pi+/-]_D indicates that the K-/+ pi+/- pair originates from the decay of a D0 or D0bar. Results are based on 120 million Upsilon(4S) --> B Bbar decays collected with the BaBar…

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

We report the determination of the Cabibbo-Kobayashi-Maskawa CP-violating angle gamma through the combination of various measurements involving B^{+-} --> D K^{+-}, B^{+-} --> D^{*} K^{+-}, and B^{+-} --> D K^{*+-} decays performed by the…

High Energy Physics - Experiment · Physics 2013-03-27 The BABAR Collaboration , J. -P. Lees , others

We have performed a search for the decays $B^+\to J/\psi p \bar{\Lambda}$ and $B^0\to J/psi p \bar{p}$ in a data set of $(88.9 \pm 1.0)\times 10^6$ $\Upsilon(4S)$ decays collected by the BaBar experiment at the PEP-II $\e^+e^-$ storage ring…

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

The branching fractions of the exclusive decays $B^0\to K^{*0}\gamma$ and $B^+ \to K^{*+}\gamma$ are measured from a sample of $(22.74\pm 0.36)\times 10^6$ $B\bar B$ decays collected with the BABAR detector at the PEP II asymmetric…

High Energy Physics - Experiment · Physics 2008-11-26 B. Aubert
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