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We have studied charmless hadronic decays of B mesons into two-body final states with kaons and pions. We present preliminary results based on 9.66 million $B\bar{B}$ pairs collected with the CLEO detector. We have made the first…

High Energy Physics - Experiment · Physics 2012-08-27 CLEO Collaboration

With a sample of approximately 89 million BBbar pairs collected with the BABAR detector, we perform a search for B meson decays into pairs of charmless vector mesons (phi, rho, and K*). We measure the branching fractions, determine the…

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

We report first measurements of the doubly charmed baryonic B decays B->Lambda_c+Lambda_c-K. The B+->Lambda_c+Lambda_c-K+ decay is observed with a branching fraction of (6.5+1.0-0.9+-1.1+-3.4)x10^{-4} and a statistical significance of…

High Energy Physics - Experiment · Physics 2008-11-26 The Belle Collaboration , N. Gabyshev

We report on a study of three-body charmless decays B+ => K+h+h-$ based on a 29.1 fb^{-1} data sample collected with the Belle detector. With no assumptions on the intermediate mechanisms, the following three-body branching fractions have…

High Energy Physics - Experiment · Physics 2008-11-26 A. Garmash

We report on an improved study of $\bar{B}^0 \to D^{(*)0} \bar{K}^{(*)0}$ decays, based on $274 \times 10^6$ $B{\bar B}$ events collected with the Belle detector at KEKB. The following branching fractions have been measured: ${\cal…

High Energy Physics - Experiment · Physics 2019-08-14 K. Abe

We report the first observation of the charmless hyperonic B decay, B0 -> p Lambdabar pi-, using a 78 fb^-1 data sample recorded on the Upsilon(4S) resonance with the Belle detector at KEKB. The measured branching fraction is B(B0 -> p…

High Energy Physics - Experiment · Physics 2008-11-26 M. -Z. Wang

We report the measurement of the charmed baryonic decay B0bar->Lambda_c+pbar with a branching fraction of (2.19^{+0.56}_{-0.49}+-0.32+-0.57)x10^{-5} and a statistical significance of 5.8 sigma. The errors are statistical, systematic, and…

High Energy Physics - Experiment · Physics 2008-11-26 N. Gabyshev , H. Kichimi

We have measured the branching fractions for the exclusive decay modes $B\to {\chi}_{c1(2)} K(K^*)$ using a $140~{\rm fb}^{-1}$ data sample collected by the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider. The measured…

High Energy Physics - Experiment · Physics 2008-11-26 The Belle Collaboration , N. Soni

We have measured the branching fraction of the inclusive radiative B meson decay B --> X(s) gamma to be Br(B->X(s)gamma)=(3.36 +/- 0.53(stat) +/- 0.42(sys) +0.50-0.54(th)) x 10^{-4}. The result is based on a sample of 6.07 x 10^6 BBbar…

High Energy Physics - Experiment · Physics 2010-05-28 The Belle Collaboration , K. Abe

A study of the charmless semileptonic decay B0 to pi- l+ nu using a large sample of untagged Upsilon(4S) to B Bbar events collected with the Belle detector at the KEKB asymmetric e+ e- collider is presented. The branching fraction of the…

High Energy Physics - Experiment · Physics 2011-01-17 Kevin Varvell

The B meson decay modes B --> D p pbar and B --> D* p pbar have been studied using 29.4 fb^{-1} of data collected with the Belle detector at KEKB. The B0bar --> D0 p pbar and B0bar --> D*0 p pbar decays have been observed for the first time…

High Energy Physics - Experiment · Physics 2012-08-27 The Belle Collaboration

We present a measurement of the branching fraction for the decay B^0->a1+(1260)pi- with a1+->pi+pi+pi- using a data sample containing 535x10^6 BBbar pairs collected with the Belle detector at the KEKB asymmetric-energy e+e- collider…

High Energy Physics - Experiment · Physics 2007-07-09 The Belle Collaboration , K. Abe

Using a data sample of $772 \times 10^6$ BB pairs collected on the ${\Upsilon}(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider, we report the observations of $B^0\to p{\bar p}\pi^+\pi^-$ and $B^+ \to…

High Energy Physics - Experiment · Physics 2020-04-01 K. Chu , M. -Z. Wang , I. Adachi , H. Aihara , S. Al Said , D. M. Asner , V. Aulchenko , T. Aushev , R. Ayad , V. Babu , I. Badhrees , S. Bahinipati , A. M. Bakich , P. Behera , C. Beleno , J. Bennett , V. Bhardwaj , B. Bhuyan , J. Biswal , A. Bobrov , G. Bonvicini , A. Bozek , M. Bracko , M. Campajola , L. Cao , D. Cervenkov , P. Chang , V. Chekelian , A. Chen , B. G. Cheon , K. Chilikin , H. E. Cho , K. Cho , S. -K. Choi , Y. Choi , S. Choudhury , D. Cinabro , S. Cunliffe , N. Dash , F. Di Capua , S. Di Carlo , Z. Dolezal , T. V. Dong , S. Eidelman , D. Epifanov , J. E. Fast , T. Ferber , A. Frey , B. G. Fulsom , R. Garg , V. Gaur , N. Gabyshev , A. Garmash , A. Giri , P. Goldenzweig , B. Golob , O. Hartbrich , K. Hayasaka , H. Hayashii , W. -S. Hou , C. -L. Hsu , T. Iijima , K. Inami , A. Ishikawa , R. Itoh , M. Iwasaki , Y. Iwasaki , W. W. Jacobs , H. B. Jeon , Y. Jin , D. Joffe , K. K. Joo , G. Karyan , T. Kawasaki , D. Y. Kim , S. H. Kim , K. Kinoshita , P. Kodys , S. Korpar , P. Krizan , R. Kroeger , P. Krokovny , R. Kulasiri , Y. -J. Kwon , Y. -T. Lai , I. S. Lee , S. C. Lee , L. K. Li , L. Li Gioi , J. Libby , K. Lieret , D. Liventsev , T. Luo , M. Masuda , D. Matvienko , M. Merola , K. Miyabayashi , R. Mizuk , T. Mori , R. Mussa , E. Nakano , T. Nakano , M. Nakao , K. J. Nath , M. Nayak , N. K. Nisar , S. Nishida , K. Nishimura , H. Ono , Y. Onuki , P. Oskin , P. Pakhlov , G. Pakhlova , B. Pal , T. Pang , S. Pardi , C. W. Park , H. Park , S. -H. Park , S. Paul , T. K. Pedlar , R. Pestotnik , L. E. Piilonen , V. Popov , E. Prencipe , M. T. Prim , P. K. Resmi , M. Ritter , A. Rostomyan , N. Rout , G. Russo , D. Sahoo , Y. Sakai , S. Sandilya , L. Santelj , V. Savinov , O. Schneider , G. Schnell , J. Schueler , C. Schwanda , Y. Seino , K. Senyo , M. E. Sevior , C. P. Shen , J. -G. Shiu , E. Solovieva , M. Staric , Z. S. Stottler , T. Sumiyoshi , W. Sutcliffe , M. Takizawa , U. Tamponi , K. Tanida , F. Tenchini , T. Uglov , Y. Unno , S. Uno , P. Urquijo , Y. Usov , G. Varner , A. Vinokurova , A. Vossen , B. Wang , C. H. Wang , P. Wang , X. L. Wang , J. Wiechczynski , E. Won , S. B. Yang , H. Ye , J. Yelton , J. H. Yin , Y. Yusa , Z. P. Zhang , V. Zhilich , V. Zhukova , V. Zhulanov

We report improved measurements of $B$ to pseudoscalar-vector decays containing an $\omega$ meson in the final states. Our results are obtained from a data sample that contains $388\times 10^{6}$ $B\bar{B}$ pairs accumulated at the…

High Energy Physics - Experiment · Physics 2019-08-14 by C. -M. Jen , P. Chang , K. Abe , K. Abe , I. Adachi , H. Aihara

We study charmless $B^+$ meson decays to the $p \bar{\Lambda} \pi^+ \pi^-$ final state using a $605 {\rm fb}^{-1}$ data sample collected at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^+ e^-$…

High Energy Physics - Experiment · Physics 2019-08-13 P. Chen , M. -Z. Wang

We search for the decay B0 -> rho0rho0 and other possible charmless modes with a pi+pi-pi+pi- final state, including B0 -> rho0f0(980), B0 -> f0(980)f0(980), B0 -> f0(980)pipi, B0 -> rho0pipi and non-resonant B0 -> 4pi. These results are…

High Energy Physics - Experiment · Physics 2007-08-16 BELLE Collaboration , K. Abe

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 report a preliminary study of the branching fractions and $q^2$ distributions of exclusive charmless semileptonic B decays, using events tagged by fully reconstructing one of the $B$ mesons in a hadronic decay mode. These results are…

High Energy Physics - Experiment · Physics 2019-08-14 K. Abe

We report branching fractions and CP asymmetries for $B \to \eta K^*$ and $B \to \eta \rho$ decays. These results are obtained from a $414 {\rm fb}^{-1}$ data sample collected at the $\Upsilon(4S)$ resonance, with the Belle detector at the…

High Energy Physics - Experiment · Physics 2019-08-14 C. H. Wang

We report the first observation of the charmless hyperonic B decay, B^+ --> Lambda Lambdabar K^+, using a 140 fb^-1 data sample recorded at the Upsilon(4S) resonance with the Belle detector at the KEKB e^+e^- collider. The measured…

High Energy Physics - Experiment · Physics 2019-08-14 Y. -J. Lee , M. -Z. Wang