Measurement of Inclusive Radiative B-Meson Decays with a Photon Energy Threshold of 1.7 GeV

  • Limosani, A.
  • Aihara, H.
  • Arinstein, K.
  • Aushev, T.
  • Bakich, A. M.
  • ... Cheon, B. G.
  • 외 113명
Citations

WEB OF SCIENCE

89
Citations

SCOPUS

125

초록

Using 605 fb(-1) of data collected at the Upsilon(4S) resonance we present a measurement of the inclusive radiative B-meson decay channel, B -> X-s gamma. For the lower photon energy thresholds of 1.7, 1.8, 1.9, and 2.0 GeV, as defined in the rest frame of the B meson, we measure the partial branching fraction and the mean and variance of the photon energy spectrum. At the 1.7 GeV threshold we obtain the partial branching fraction BF(B -> X-s gamma)=(3.45 +/- 0.15 +/- 0.40)x10(-4), where the errors are statistical and systematic.

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SPECTRUMMOMENTS
제목
Measurement of Inclusive Radiative B-Meson Decays with a Photon Energy Threshold of 1.7 GeV
저자
Limosani, A.Aihara, H.Arinstein, K.Aushev, T.Bakich, A. M.Balagura, V.Barberio, E.Bay, A.Belous, K.Bischofberger, M.Bondar, A.Bozek, A.Bracko, M.Browder, T. E.Chang, P.Chao, Y.Chen, A.Cheon, B. G.Choi, Y.Dalseno, J.Danilov, M.Drutskoy, A.Dungel, W.Eidelman, S.Goldenzweig, P.Golob, B.Ha, H.Hayashii, H.Hoshi, Y.Hou, W. -S.Hyun, H. J.Inami, K.Itoh, R.Iwasaki, Y.Julius, T.Kah, D. H.Kim, H. O.Kim, S. K.Kim, Y. I.Kim, Y. J.Kinoshita, K.Ko, B. R.Korpar, S.Kreps, M.Krizan, P.Krokovny, P.Kuhr, T.Kumar, R.Kwon, Y. -J.Kyeong, S. -H.Lesiak, T.Li, J.Liu, C.Liventsev, D.Louvot, R.Matyja, A.Miyabayashi, K.Miyata, H.Miyazaki, Y.Mizuk, R.Mori, T.Nakao, M.Nakazawa, H.Nishida, S.Nishimura, K.Nitoh, O.Nozaki, T.Ogawa, S.Ohshima, T.Okuno, S.Ozaki, H.Pakhlova, G.Park, C. W.Park, H.Piilonen, L. E.Rozanska, M.Sahoo, H.Sakai, Y.Schneider, O.Schumann, J.Schwanda, C.Schwartz, A. J.Senyo, K.Sevior, M. E.Shapkin, M.Shebalin, V.Shen, C. P.Shiu, J. -G.Singh, J. B.Stanic, S.Staric, M.Sumisawa, K.Sumiyoshi, T.Suzuki, S.Taylor, G. N.Teramoto, Y.Trabelsi, K.Tsuboyama, T.Uehara, S.Unno, Y.Uno, S.Urquijo, P.Ushiroda, Y.Varner, G.Varvell, K. E.Vervink, K.Wang, C. H.Wang, M. -Z.Wang, P.Watanabe, Y.Wedd, R.Wicht, J.Won, E.Yabsley, B. D.Yamamoto, H.Yamashita, Y.Zhang, Z. P.Zivko, T.Zupanc, A.
DOI
10.1103/PhysRevLett.103.241801
발행일
2009-12
유형
Article
저널명
Physical Review Letters
103
24
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