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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

Using 449 million BBbar pairs collected with the Belle detector at the KEKB asymmetric-energy e^+e^- collider, we observe clear signals for B^+-> \bar{K}^0 K^+ and B^0-> \bar{K}^0 K^0 decays with 5.3 sigma and 6.0 sigma significance,…

High Energy Physics - Experiment · Physics 2019-08-14 S. -W. Lin , P. Chang

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 report on a study of $\bar{B^{0}} \to D^{(*) 0} \pi^+ \pi^-$ decays using 29.1 fb$^{-1}$ of $e^{+}e^{-}$ annihilation data recorded at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB storage ring. Making no assumptions…

High Energy Physics - Experiment · Physics 2008-11-26 The Belle Collaboration , A. Satpathy

We report the first observation of the decay B+ -> \bar{\Xi}_c^0 \Lambda_c^+ with a significance of 8.7 \sigma and evidence for the decay B^0 -> \bar{\Xi}_c^-\Lambda_c^+ with a significance of 3.8 \sigma. The product Br(B^+ ->…

High Energy Physics - Experiment · Physics 2019-08-14 R. Chistov

We present a study of the decays B0bar --> D(*)0 K(*)0bar using a sample of 124 million Upsilon(4S) --> B0bar B0 decays collected with the BaBar detector at the PEP-II asymmetric-energy e+e- collider at SLAC. We report evidence for the…

High Energy Physics - Experiment · Physics 2007-05-23 B. Aubert , BABAR Collaboration

We present the first evidence of the decay B- --> tau- nu_tau-bar using 414 fb^-1 of data collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. Events are tagged by fully reconstructing…

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

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 report the first observation of the Cabibbo-suppressed decays $\Xi_c^0\rightarrow \Xi^- K^+$, $\Xi_c^0\ra\Lambda K^+ K^-$ and $\Xi_c^0\rightarrow \Lambda \phi$, using a data sample of $711\, \mathrm{fb}^{-1}$ collected at the…

High Energy Physics - Experiment · Physics 2013-10-30 Belle Collaboration , R. Chistov , I. Adachi , H. Aihara , D. M. Asner , V. Aulchenko , T. Aushev , A. M. Bakich , A. Bala , V. Bhardwaj , B. Bhuyan , A. Bondar , G. Bonvicini , A. Bozek , M. Bračko , J. Brodzicka , T. E. Browder , V. Chekelian , A. Chen , P. Chen , B. G. Cheon , K. Chilikin , I. -S. Cho , K. Cho , V. Chobanova , Y. Choi , D. Cinabro , M. Danilov , Z. Doležal , D. Dutta , S. Eidelman , D. Epifanov , H. Farhat , J. E. Fast , M. Feindt , T. Ferber , A. Frey , V. Gaur , N. Gabyshev , S. Ganguly , R. Gillard , Y. M. Goh , B. Golob , J. Haba , T. Hara , K. Hayasaka , H. Hayashii , Y. Horii , Y. Hoshi , W. -S. Hou , H. J. Hyun , T. Iijima , A. Ishikawa , R. Itoh , Y. Iwasaki , T. Julius , D. H. Kah , J. H. Kang , E. Kato , T. Kawasaki , H. Kichimi , C. Kiesling , D. Y. Kim , H. J. Kim , J. B. Kim , J. H. Kim , K. T. Kim , Y. J. Kim , K. Kinoshita , J. Klucar , B. R. Ko , P. Kodyš , S. Korpar , P. Križan , T. Kumita , A. Kuzmin , Y. -J. Kwon , J. S. Lange , S. -H. Lee , J. Li , Y. Li , J. Libby , C. Liu , Y. Liu , D. Liventsev , P. Lukin , D. Matvienko , H. Miyata , R. Mizuk , G. B. Mohanty , A. Moll , T. Mori , N. Muramatsu , R. Mussa , E. Nakano , M. Nakao , Z. Natkaniec , M. Nayak , E. Nedelkovska , C. Ng , S. Nishida , O. Nitoh , S. Ogawa , S. Okuno , S. L. Olsen , C. Oswald , G. Pakhlova , C. W. Park , H. Park , H. K. Park , R. Pestotnik , M. Petrič , L. E. Piilonen , M. Ritter , M. Röhrken , A. Rostomyan , H. Sahoo , T. Saito , K. Sakai , Y. Sakai , S. Sandilya , D. Santel , L. Santelj , T. Sanuki , V. Savinov , O. Schneider , G. Schnell , C. Schwanda , D. Semmler , K. Senyo , O. Seon , M. E. Sevior , M. Shapkin , C. P. Shen , T. -A. Shibata , J. -G. Shiu , B. Shwartz , A. Sibidanov , F. Simon , Y. -S. Sohn , A. Sokolov , E. Solovieva , M. Starič , M. Steder , M. Sumihama , T. Sumiyoshi , U. Tamponi , K. Tanida , G. Tatishvili , Y. Teramoto , M. Uchida , T. Uglov , Y. Unno , S. Uno , P. Urquijo , Y. Usov , S. E. Vahsen , C. Van Hulse , P. Vanhoefer , G. Varner , K. E. Varvell , A. Vinokurova , M. N. Wagner , C. H. Wang , M. -Z. Wang , P. Wang , X. L. Wang , Y. Watanabe , K. M. Williams , E. Won , B. D. Yabsley , J. Yamaoka , Y. Yamashita , S. Yashchenko , Y. Yook , Y. Yusa , Z. P. Zhang , V. Zhilich , V. Zhulanov , A. Zupanc

We report the first observation of a b -> u type charmless baryonic B decay, B+ -> p pbar pi+, as well as b -> s type B0 -> p pbar K0 and B+ -> p pbar K*+ decays. The analysis is based on a 78fb^{-1} data sample recorded on the Upsilon(4S)…

High Energy Physics - Experiment · Physics 2019-08-14 M. -Z. Wang

We report a study of the suppressed B meson decay B^- -> D K^- followed by D -> K^+ \pi^-, where D indicates a D^0 or \bar{D}^0 state. The two decay paths interfere and provide information on the CP-violating angle \phi_3. We use a data…

High Energy Physics - Experiment · Physics 2008-11-26 Belle Collaboration , Y. Horii , K. Trabelsi , H. Yamamoto

We report the first observation of the radiative decay B^0 -> \phi K^0 \gamma using a data sample of 772 x 10^6 B B-bar pairs collected at the \Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e^+e^- collider. We…

High Energy Physics - Experiment · Physics 2019-08-13 H. Sahoo , T. E. Browder

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 a measurement of the $B^0\rightarrow\psi(2S)\pi^0$ branching fraction based on the full $\Upsilon(4S)$ data set of $772\times10^{6}$ $B\bar{B}$ pairs collected by the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider.…

High Energy Physics - Experiment · Physics 2016-03-02 V. Chobanova , J. Dalseno , C. Kiesling , A. Abdesselam , I. Adachi , H. Aihara , D. M. Asner , T. Aushev , R. Ayad , V. Babu , I. Badhrees , S. Bahinipati , A. M. Bakich , E. Barberio , P. Behera , V. Bhardwaj , B. Bhuyan , J. Biswal , A. Bobrov , A. Bozek , M. Bračko , T. E. Browder , D. Červenkov , V. Chekelian , A. Chen , B. G. Cheon , R. Chistov , K. Cho , Y. Choi , D. Cinabro , N. Dash , Z. Doležal , Z. Drásal , A. Drutskoy , S. Eidelman , H. Farhat , J. E. Fast , T. Ferber , B. G. Fulsom , V. Gaur , N. Gabyshev , A. Garmash , R. Gillard , Y. M. Goh , P. Goldenzweig , B. Golob , O. Grzymkowska , J. Haba , T. Hara , K. Hayasaka , H. Hayashii , W. -S. Hou , T. Iijima , K. Inami , A. Ishikawa , Y. Iwasaki , I. Jaegle , H. B. Jeon , D. Joffe , K. K. Joo , T. Julius , E. Kato , P. Katrenko , T. Kawasaki , D. Y. Kim , H. J. Kim , J. B. Kim , K. T. Kim , M. J. Kim , S. H. Kim , Y. J. Kim , K. Kinoshita , P. Kodyš , S. Korpar , P. Križan , P. Krokovny , T. Kuhr , R. Kumar , T. Kumita , A. Kuzmin , Y. -J. Kwon , I. S. Lee , H. Li , L. Li , Y. Li , L. Li Gioi , J. Libby , D. Liventsev , M. Masuda , D. Matvienko , H. Miyata , R. Mizuk , G. B. Mohanty , S. Mohanty , A. Moll , H. K. Moon , T. Mori , R. Mussa , E. Nakano , M. Nakao , T. Nanut , Z. Natkaniec , M. Nayak , N. K. Nisar , S. Nishida , S. Ogawa , P. Pakhlov , G. Pakhlova , B. Pal , C. W. Park , H. Park , S. Paul , T. K. Pedlar , R. Pestotnik , M. Petrič , L. E. Piilonen , C. Pulvermacher , J. Rauch , E. Ribežl , M. Ritter , S. Ryu , H. Sahoo , Y. Sakai , S. Sandilya , T. Sanuki , V. Savinov , T. Schlüter , O. Schneider , G. Schnell , C. Schwanda , A. J. Schwartz , Y. Seino , K. Senyo , O. Seon , M. E. Sevior , V. Shebalin , T. -A. Shibata , J. -G. Shiu , B. Shwartz , F. Simon , J. B. Singh , Y. -S. Sohn , A. Sokolov , E. Solovieva , M. Starič , J. Stypula , M. Sumihama , K. Sumisawa , T. Sumiyoshi , U. Tamponi , Y. Teramoto , K. Trabelsi , M. Uchida , S. Uehara , T. Uglov , Y. Unno , S. Uno , P. Urquijo , Y. Usov , C. Van Hulse , P. Vanhoefer , G. Varner , A. Vinokurova , V. Vorobyev , M. N. Wagner , C. H. Wang , M. -Z. Wang , P. Wang , X. L. Wang , M. Watanabe , Y. Watanabe , K. M. Williams , E. Won , J. Yamaoka , S. Yashchenko , H. Ye , J. Yelton , C. Z. Yuan , Y. Yusa , Z. P. Zhang , V. Zhilich , V. Zhulanov , A. Zupanc

We present measurements of the branching fraction, the polarization parameters and CP-violating asymmetries in B0 -> D*+ D*- decays using a 140/fb data sample collected at the Upsilon(4S) resonance with the Belle detector at the KEKB…

High Energy Physics - Experiment · Physics 2019-08-14 H. Miyake , M. Hazumi

We report the first observation of color-suppressed $\overline{B}^0\to D^0 \pi^0$ and $D^{(*)0} \omega$ decays and evidence of $\overline{B}^0 \to D^{*0} \pi^0$ and $D^{(*)0} \eta$. The branching fractions are found to be ${\cal B}…

High Energy Physics - Experiment · Physics 2007-05-23 K. Abe , The Belle Collaboration

We report evidence for the decay B0->pi0pi0. The analysis is based on a data sample of 152million BBbar pairs collected at the Upsilon(4s) resonance with the Belle detector at the KEKB e+e- storage ring. We find…

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

We report a measurement of the exclusive $B^+$ meson decay to the $D_s^{(*)-} K^+\pi^+$ final state using $657 \times 10^{6} B\overline{B}$ pairs collected at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB…

High Energy Physics - Experiment · Physics 2009-10-06 The Belle Collaboration , J. Wiechczynski , T. Lesiak

We report the study of \OK \ and \SK \ using a $772 \times 10^6$ $B\bar{B}$ pair data sample recorded on the $\Upsilon({\rm 4S})$ resonance with the Belle detector at KEKB. The following branching fractions are measured:…

High Energy Physics - Experiment · Physics 2019-02-13 P. -C. Lu , M. -Z. Wang , R. Chistov , P. Chang , I. Adachi , J. K. Ahn , H. Aihara , S. Al Said , D. M. Asner , H. Atmacan , V. Aulchenko , T. Aushev , R. Ayad , V. Babu , I. Badhrees , A. M. Bakich , V. Bansal , P. Behera , C. Beleno , M. Berger , V. Bhardwaj , B. Bhuyan , T. Bilka , J. Biswal , G. Bonvicini , A. Bozek , M. Bračko , T. E. Browder , L. Cao , D. Červenkov , V. Chekelian , A. Chen , B. G. Cheon , K. Chilikin , K. Cho , S. -K. Choi , Y. Choi , S. Choudhury , D. Cinabro , S. Cunliffe , N. Dash , S. Di Carlo , Z. Doležal , T. V. Dong , Z. Drásal , S. Eidelman , D. Epifanov , J. E. Fast , T. Ferber , B. G. Fulsom , R. Garg , V. Gaur , N. Gabyshev , A. Garmash , M. Gelb , A. Giri , P. Goldenzweig , E. Guido , J. Haba , K. Hayasaka , H. Hayashii , S. Hirose , W. -S. Hou , C. -L. Hsu , T. Iijima , K. Inami , G. Inguglia , A. Ishikawa , R. Itoh , M. Iwasaki , Y. Iwasaki , W. W. Jacobs , H. B. Jeon , S. Jia , Y. Jin , D. Joffe , K. K. Joo , T. Julius , A. B. Kaliyar , T. Kawasaki , H. Kichimi , C. Kiesling , D. Y. Kim , H. J. Kim , J. B. Kim , K. T. Kim , S. H. Kim , K. Kinoshita , P. Kodyš , S. Korpar , D. Kotchetkov , P. Križan , R. Kroeger , P. Krokovny , T. Kuhr , R. Kulasiri , A. Kuzmin , Y. -J. Kwon , Y. -T. Lai , J. S. Lange , I. S. Lee , S. C. Lee , L. K. Li , Y. B. Li , L. Li Gioi , J. Libby , D. Liventsev , M. Lubej , T. Luo , M. Masuda , T. Matsuda , D. Matvienko , M. Merola , K. Miyabayashi , H. Miyata , R. Mizuk , G. B. Mohanty , H. K. Moon , T. Mori , R. Mussa , M. Nakao , T. Nanut , K. J. Nath , Z. Natkaniec , M. Nayak , N. K. Nisar , S. Nishida , S. Ogawa , S. Okuno , H. Ono , H. Ozaki , P. Pakhlov , G. Pakhlova , B. Pal , S. Pardi , H. Park , S. Paul , T. K. Pedlar , R. Pestotnik , L. E. Piilonen , V. Popov , E. Prencipe , A. Rabusov , M. Ritter , A. Rostomyan , G. Russo , Y. Sakai , M. Salehi , S. Sandilya , L. Santelj , T. Sanuki , V. Savinov , 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 , J. B. Singh , A. Sokolov , E. Solovieva , M. Starič , J. F. Strube , M. Sumihama , T. Sumiyoshi , W. Sutcliffe , M. Takizawa , U. Tamponi , K. Tanida , F. Tenchini , M. Uchida , T. Uglov , Y. Unno , S. Uno , P. Urquijo , Y. Usov , S. E. Vahsen , C. Van Hulse , R. Van Tonder , G. Varner , A. Vinokurova , V. Vorobyev , A. Vossen , B. Wang , C. H. Wang , M. Watanabe , S. Watanuki , E. Widmann , E. Won , H. Ye , J. H. Yin , C. Z. Yuan , Z. P. Zhang , V. Zhilich , V. Zhukova , V. Zhulanov , A. Zupanc

We report the observation of the decay $B^{\pm} \to \phi \phi K^{\pm}$ and find evidence for $B^{0} \to \phi \phi K^{0}$. These results are based on a 414 fb$^{-1}$ data sample that contains $449 \times 10^6$ $B\bar{B}$ pairs, collected…

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