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19 April 2024

» arxiv » 1504.5831

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Search for B+ -> l+ nu gamma decays with hadronic tagging using the full Belle data sample
A. Heller ; P. Goldenzweig ; M. Heck ; T. Kuhr ; A. Zupanc ; A. Abdesselam ; I. Adachi ; K. Adamczyk ; H. Aihara ; K. Arinstein ; D. M. Asner ; V. Aulchenko ; T. Aushev ; R. Ayad ; V. Babu ; I. Badhrees ; A. M. Bakich ; E. Barberio ; V. Bhardwaj ; B. Bhuyan ; A. Bondar ; G. Bonvicini ; A. Bozek ; M. Bračko ; T. E. Browder ; D. Červenkov ; A. Chen ; B. G. Cheon ; K. Cho ; V. Chobanova ; Y. Choi ; D. Cinabro ; M. Danilov ; Z. Doležal ; Z. Drásal ; A. Drutskoy ; D. Dutta ; S. Eidelman ; H. Farhat ; J. E. Fast ; M. Feindt ; T. Ferber ; B. G. Fulsom ; V. Gaur ; N. Gabyshev ; A. Garmash ; D. Getzkow ; R. Gillard ; R. Glattauer ; Y. M. Goh ; B. Golob ; J. Haba ; K. Hayasaka ; X. H. He ; T. Horiguchi ; W.-S. Hou ; T. Iijima ; K. Inami ; A. Ishikawa ; R. Itoh ; Y. Iwasaki ; I. Jaegle ; D. Joffe ; E. Kato ; P. Katrenko ; T. Kawasaki ; D. Y. Kim ; H. J. Kim ; J. B. Kim ; J. H. Kim ; K. T. Kim ; S. H. Kim ; K. Kinoshita ; B. R. Ko ; P. Kodyš ; S. Korpar ; P. Križan ; P. Krokovny ; T. Kumita ; A. Kuzmin ; Y.-J. Kwon ; J. S. Lange ; I. S. Lee ; P. Lewis ; J. Libby ; P. Lukin ; D. Matvienko ; K. Miyabayashi ; H. Miyata ; R. Mizuk ; G. B. Mohanty ; A. Moll ; H. K. Moon ; R. Mussa ; E. Nakano ; M. Nakao ; T. Nanut ; Z. Natkaniec ; M. Nayak ; N. K. Nisar ; S. Nishida ; S. Ogawa ; S. Okuno ; S. L. Olsen ; C. Oswald ; G. Pakhlova ; B. Pal ; H. Park ; T. K. Pedlar ; L. Pesántez ; R. Pestotnik ; M. Petrič ; L. E. Piilonen ; E. Ribežl ; M. Ritter ; A. Rostomyan ; S. Ryu ; Y. Sakai ; S. Sandilya ; L. Santelj ; T. Sanuki ; Y. Sato ; V. Savinov ; O. Schneider ; G. Schnell ; C. Schwanda ; K. Senyo ; M. E. Sevior ; M. Shapkin ; V. Shebalin ; C. P. Shen ; T.-A. Shibata ; J.-G. Shiu ; B. Shwartz ; A. Sibidanov ; F. Simon ; Y.-S. Sohn ; A. Sokolov ; M. Starič ; M. Steder ; J. Stypula ; U. Tamponi ; Y. Teramoto ; K. Trabelsi ; M. Uchida ; T. Uglov ; Y. Unno ; S. Uno ; P. Urquijo ; C. Van Hulse ; P. Vanhoefer ; G. Varner ; A. Vinokurova ; A. Vossen ; M. N. Wagner ; M.-Z. Wang ; X. L. Wang ; Y. Watanabe ; K. M. Williams ; E. Won ; Y. Yamashita ; S. Yashchenko ; Z. P. Zhang ; V. Zhilich ;
Date:	22 Apr 2015
Abstract:	We search for the decay B+ -> l+ nu gamma with l+ = e+ or mu+ using the full Belle data set of 772 x 10^6 BBbar pairs, collected at the Y(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We reconstruct one B meson in a hadronic decay mode and search for the B+ -> l+ nu gamma decay in the remainder of the event. We observe no significant signal within the phase space of E_gamma^sig > 1 GeV and obtain upper limits of BR(B+ -> e+ nu gamma) < 6.1 x 10^-6, BR(B+ -> mu+ nu gamma) < 3.4 x 10^-6, and BR(B+ -> l+ nu gamma) < 3.5 x 10^-6 at 90 % credibility level.
Source:	arXiv, 1504.5831
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