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We report the first observation of the radiative hyperonic B decay B+ -> p Lambdabar gamma, using a 140 fb^{-1} data sample recorded on the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric energy e+e- collider. The…

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

We report the observation of the radiative decay B+ --> K1(1270)+ gamma using a data sample of 140 fb-1 taken at the Upsilon(4S) resonance with the Belle detector at the KEKB e+e- collider. We find the branching fraction to be Br(B+ -->…

High Energy Physics - Experiment · Physics 2019-08-14 Heyoung Yang

We report the observation of the radiative decay B+ --> K1(1270)+ gamma using a data sample of 140 fb-1 taken at the Upsilon(4S) resonance with the Belle detector at the KEKB e+e- collider. We find the branching fraction to be Br(B+ -->…

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

We report measurements of radiative B decays with K eta gamma final states, using a data sample of 140 /fb recorded at the Upsilon(4S) resonance with the Belle detector at the KEKB e+e- asymmetric energy collider. We observe B -> K eta…

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 measurements of radiative B decays with K eta gamma final states, using a data sample of 253 /fb recorded at the Upsilon(4S) resonance with the Belle detector at the KEKB e+e- storage ring. We observe B+ -> K+ eta gamma for the…

High Energy Physics - Experiment · Physics 2019-08-14 S. Nishida

We have searched for the decay B0 -> phi gamma using the full Belle data set of 772 x 10^6 BBbar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB e+e- collider. No signal is observed, and we set an upper…

High Energy Physics - Experiment · Physics 2016-08-06 Belle Collaboration , Z. King , B. Pal , A. J. Schwartz , I. Adachi , H. Aihara , S. Al Said , D. M. Asner , H. Atmacan , T. Aushev , R. Ayad , A. M. Bakich , P. Behera , V. Bhardwaj , B. Bhuyan , J. Biswal , A. Bobrov , A. Bozek , T. E. Browder , D. Červenkov , V. Chekelian , B. G. Cheon , K. Chilikin , R. Chistov , K. Cho , V. Chobanova , Y. Choi , D. Cinabro , J. Dalseno , N. Dash , Z. Doležal , D. Dutta , S. Eidelman , H. Farhat , T. Ferber , B. G. Fulsom , V. Gaur , N. Gabyshev , A. Garmash , R. Gillard , R. Glattauer , Y. M. Goh , P. Goldenzweig , B. Golob , J. Haba , T. Hara , K. Hayasaka , H. Hayashii , T. Horiguchi , W. -S. Hou , C. -L. Hsu , T. Iijima , K. Inami , G. Inguglia , A. Ishikawa , R. Itoh , Y. Iwasaki , W. W. Jacobs , H. B. Jeon , K. K. Joo , T. Julius , K. H. Kang , E. Kato , T. Kawasaki , C. Kiesling , D. Y. Kim , H. J. Kim , J. B. Kim , K. T. Kim , S. H. Kim , Y. J. Kim , K. Kinoshita , P. Kodyš , S. Korpar , D. Kotchetkov , P. Križan , P. Krokovny , T. Kuhr , T. Kumita , I. S. Lee , C. H. Li , H. Li , L. Li , Y. Li , L. Li Gioi , J. Libby , T. Luo , M. Masuda , T. Matsuda , D. Matvienko , K. Miyabayashi , H. Miyata , R. Mizuk , G. B. Mohanty , A. Moll , M. Nakao , T. Nanut , K. J. Nath , K. Negishi , S. Nishida , S. Ogawa , S. Okuno , W. Ostrowicz , C. W. Park , S. Paul , T. K. Pedlar , L. Pesántez , R. Pestotnik , M. Petrič , L. E. Piilonen , C. Pulvermacher , J. Rauch , M. Ritter , A. Rostomyan , S. Ryu , H. Sahoo , Y. Sakai , S. Sandilya , L. Santelj , T. Sanuki , Y. Sato , V. Savinov , T. Schlüter , O. Schneider , G. Schnell , C. Schwanda , Y. Seino , K. Senyo , M. E. Sevior , V. Shebalin , C. P. Shen , T. -A. Shibata , J. -G. Shiu , B. Shwartz , F. Simon , E. Solovieva , S. Stanič , M. Starič , J. F. Strube , J. Stypula , M. Sumihama , M. Takizawa , N. Taniguchi , Y. Teramoto , K. Trabelsi , M. Uchida , T. Uglov , Y. Unno , S. Uno , P. Urquijo , Y. Usov , P. Vanhoefer , G. Varner , K. E. Varvell , V. Vorobyev , C. H. Wang , M. -Z. Wang , P. Wang , M. Watanabe , Y. Watanabe , S. Wehle , K. M. Williams , E. Won , J. Yamaoka , S. Yashchenko , Y. Yook , C. Z. Yuan , Z. P. Zhang , V. Zhilich , A. Zupanc

We study B- meson decays to pbar Lambda D(*)0 final states using a sample of 657 * 10^6 B Bbar events collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+ e- collider. The observed branching…

High Energy Physics - Experiment · Physics 2015-05-30 P. Chen , M. -Z. Wang , I. Adachi , H. Aihara , D. M. Asner , V. Aulchenko , T. Aushev , A. M. Bakich , E. Barberio , K. Belous , B. Bhuyan , A. Bozek , M. Bračko , T. E. Browder , M. -C. Chang , P. Chang , Y. Chao , A. Chen , B. G. Cheon , I. -S. Cho , K. Cho , Y. Choi , J. Dalseno , M. Danilov , Z. Doležal , Z. Drásal , S. Eidelman , J. E. Fast , M. Feindt , V. Gaur , Y. M. Goh , J. Haba , T. Hara , K. Hayasaka , H. Hayashii , Y. Hoshi , W. -S. Hou , Y. B. Hsiung , H. J. Hyun , A. Ishikawa , R. Itoh , M. Iwabuchi , Y. Iwasaki , T. Iwashita , T. Julius , J. H. Kang , P. Kapusta , N. Katayama , T. Kawasaki , H. Kichimi , C. Kiesling , H. O. Kim , J. B. Kim , J. H. Kim , K. T. Kim , M. J. Kim , Y. J. Kim , K. Kinoshita , B. R. Ko , N. Kobayashi , S. Koblitz , P. Križan , T. Kuhr , A. Kuzmin , Y. -J. Kwon , J. S. Lange , S. -H. Lee , J. Li , Y. Li , J. Libby , C. Liu , Y. Liu , D. Liventsev , R. Louvot , D. Matvienko , S. McOnie , H. Miyata , Y. Miyazaki , G. B. Mohanty , Y. Nagasaka , E. Nakano , M. Nakao , Z. Natkaniec , S. Neubauer , S. Nishida , O. Nitoh , S. Ogawa , T. Ohshima , S. L. Olsen , Y. Onuki , P. Pakhlov , G. Pakhlova , H. Park , H. K. Park , T. K. Pedlar , R. Pestotnik , M. Peters , M. Petrič , L. E. Piilonen , M. Ritter , M. Röhrken , S. Ryu , H. Sahoo , Y. Sakai , T. Sanuki , O. Schneider , C. Schwanda , K. Senyo , M. E. Sevior , M. Shapkin , C. P. Shen , T. -A. Shibata , J. -G. Shiu , B. Shwartz , F. Simon , J. B. Singh , P. Smerkol , Y. -S. Sohn , E. Solovieva , S. Stanič , M. Starič , M. Sumihama , T. Sumiyoshi , G. Tatishvili , Y. Teramoto , M. Uchida , S. Uehara , Y. Unno , S. Uno , G. Varner , K. E. Varvell , C. H. Wang , X. L. Wang , Y. Watanabe , K. M. Williams , E. Won , B. D. Yabsley , Y. Yamashita , M. Yamauchi , Z. P. Zhang

We report the result of a search for the rare decay B^0 -> gamma gamma in 426 fb-1 of data, corresponding to 226 million B^0 \bar{B}^0 pairs, collected on the Upsilon(4S) resonance at the PEP-II asymmetric-energy e+e- collider using the…

High Energy Physics - Experiment · Physics 2011-02-18 The BABAR Collaboration , P. del Amo Sanchez et al

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 study the charmless baryonic three-body decays of B mesons: B+ to p Lambdabar gamma, B+ to p Lambdabar pi0 and B0 to p Lambdabar pi-. The partial branching fractions as a function of the baryon-antibaryon mass and the polar angle…

High Energy Physics - Experiment · Physics 2019-08-12 M. -Z. Wang , Y. -J. Lee

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

We present a search for the radiative leptonic decays B+ -> e+ nu gamma and B+ -> mu+ nu gamma using data collected by the BABAR detector at the PEP-II B factory. We fully reconstruct the hadronic decay of one of the B mesons in Upsilon(4S)…

High Energy Physics - Experiment · Physics 2009-10-01 D. M. Lindemann

We present a limit on the branching fraction for the decay $B^0 \to \gamma \gamma$ using data collected at the $\Upsilon(4S)$ resonance with the BABAR detector at the PEP-II asymmetric--energy $e^+e^-$ collider. Based on the observation of…

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

The rare decay B0 -> gamma gamma is searched for in 104 fb^-1 of data, corresponding to 111 x 10^6 BBar pairs, collected with the Belle detector at the KEKB asymmetric-energy e+ e- collider. No evidence for the signal is found, and an upper…

High Energy Physics - Experiment · Physics 2008-11-26 The Belle Collaboration , S. Villa

We search for the charmless B^0 decay with final state particles p Lambdabar pi^- gamma using the full data sample that contains 772 * 10^6 B Bar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB…

High Energy Physics - Experiment · Physics 2015-06-18 Y. -T. Lai , M. -Z. Wang , I. Adachi , H. Aihara , D. M. Asner , V. Aulchenko , T. Aushev , A. M. Bakich , A. Bala , B. Bhuyan , A. Bobrov , A. Bozek , M. Bračko , T. E. Browder , P. Chang , V. Chekelian , A. Chen , P. Chen , B. G. Cheon , I. -S. Cho , K. Cho , V. Chobanova , S. -K. Choi , Y. Choi , D. Cinabro , J. Dalseno , Z. Doležal , A. Drutskoy , S. Eidelman , H. Farhat , J. E. Fast , T. Ferber , A. Frey , V. Gaur , S. Ganguly , R. Gillard , Y. M. Goh , B. Golob , J. Haba , H. Hayashii , Y. Hoshi , W. -S. Hou , Y. B. Hsiung , T. Iijima , A. Ishikawa , R. Itoh , Y. Iwasaki , T. Iwashita , I. Jaegle , T. Julius , J. H. Kang , E. Kato , T. Kawasaki , C. Kiesling , H. O. Kim , J. H. Kim , M. J. Kim , Y. J. Kim , J. Klucar , B. R. Ko , P. Kodyš , S. Korpar , P. Križan , P. Krokovny , T. Kuhr , T. Kumita , Y. -J. Kwon , J. S. Lange , S. -H. Lee , J. Li , J. Libby , Y. Liu , P. Lukin , D. Matvienko , H. Miyata , R. Mizuk , A. Moll , R. Mussa , E. Nakano , M. Nakao , M. Nayak , C. Ng , N. K. Nisar , S. Nishida , O. Nitoh , S. Ogawa , Y. Onuki , H. Ozaki , G. Pakhlova , C. W. Park , H. Park , T. K. Pedlar , R. Pestotnik , M. Petrič , L. E. Piilonen , M. Ritter , M. Röhrken , A. Rostomyan , S. Ryu , H. Sahoo , T. Saito , Y. Sakai , S. Sandilya , D. Santel , L. Santelj , T. Sanuki , Y. Sato , O. Schneider , G. Schnell , C. Schwanda , D. Semmler , K. Senyo , M. Shapkin , C. P. Shen , T. -A. Shibata , J. -G. Shiu , B. Shwartz , A. Sibidanov , Y. -S. Sohn , E. Solovieva , S. Stanič , M. Starič , M. Steder , T. Sumiyoshi , U. Tamponi , K. Tanida , Y. Teramoto , M. Uchida , S. Uehara , T. Uglov , Y. Unno , S. Uno , P. Urquijo , S. E. Vahsen , C. Van Hulse , P. Vanhoefer , G. Varner , A. Vossen , M. N. Wagner , C. H. Wang , P. Wang , Y. Watanabe , K. M. Williams , E. Won , J. Yamaoka , Y. Yamashita , S. Yashchenko , Z. P. Zhang , V. Zhilich , V. Zhulanov , A. Zupanc

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 report the observation of B- -> J/psi Lambda pbar and searches for B- -> J/psi Sigma0 pbar and B0 -> J/psi p pbar decays, using a sample of 275 million BBbar pairs collected with the Belle detector at the Upsilon(4S) resonance. We…

High Energy Physics - Experiment · Physics 2019-08-14 Q. L. Xie

We present the first evidence for B semileptonic decays into the charmed baryon Lambda_c+ based on 420 fb-1 of data collected at the Upsilon(4S) resonance with the BABAR detector at the PEP-II e+e- storage rings. Events are tagged by fully…

High Energy Physics - Experiment · Physics 2008-08-04 The BABAR Collaboration , B. Aubert
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