| Literature DB >> 15323621 |
P Koppenburg1, K Abe, K Abe, T Abe, I Adachi, H Aihara, M Akatsu, Y Asano, V Aulchenko, T Aushev, A M Bakich, Y Ban, A Bay, U Bitenc, I Bizjak, A Bondar, A Bozek, M Bracko, T E Browder, P Chang, Y Chao, K-F Chen, B G Cheon, Y Choi, A Chuvikov, S Cole, M Danilov, M Dash, L Y Dong, A Drutskoy, S Eidelman, V Eiges, Y Enari, F Fang, S Fratina, N Gabyshev, A Garmash, T Gershon, G Gokhroo, B Golob, J Haba, H Hayashii, M Hazumi, T Higuchi, L Hinz, T Hokuue, Y Hoshi, W-S Hou, Y B Hsiung, T Iijima, K Inami, A Ishikawa, R Itoh, H Iwasaki, M Iwasaki, J H Kang, J S Kang, N Katayama, H Kawai, T Kawasaki, H Kichimi, H J Kim, J H Kim, S K Kim, T H Kim, S Korpar, P Krizan, P Krokovny, S Kumar, A Kuzmin, Y-J Kwon, J S Lange, G Leder, S H Lee, T Lesiak, J Li, A Limosani, S-W Lin, J MacNaughton, G Majumder, F Mandl, T Matsumoto, Y Mikami, W Mitaroff, K Miyabayashi, H Miyake, H Miyata, D Mohapatra, G R Moloney, T Mori, T Nagamine, Y Nagasaka, T Nakadaira, E Nakano, M Nakao, Z Natkaniec, K Neichi, S Nishida, O Nitoh, T Nozaki, S Ogawa, T Ohshima, T Okabe, S Okuno, S L Olsen, W Ostrowicz, H Ozaki, P Pakhlov, H Palka, C W Park, H Park, N Parslow, L S Peak, L E Piilonen, F J Ronga, M Rozanska, H Sagawa, S Saitoh, Y Sakai, T R Sarangi, O Schneider, C Schwanda, A J Schwartz, S Semenov, K Senyo, R Seuster, M E Sevior, H Shibuya, N Soni, R Stamen, S Stanic, M Staric, T Sumiyoshi, S Suzuki, O Tajima, F Takasaki, N Tamura, M Tanaka, G N Taylor, T Tomura, K Trabelsi, T Tsuboyama, T Tsukamoto, S Uehara, T Uglov, K Ueno, S Uno, Y Ushiroda, G Varner, K E Varvell, C C Wang, C H Wang, M Watanabe, B D Yabsley, Y Yamada, A Yamaguchi, Y Yamashita, M Yamauchi, H Yanai, Heyoung Yang, J Ying, Y Yusa, C C Zhang, Z P Zhang, T Ziegler, D Zontar.
Abstract
We report a fully inclusive measurement of the flavor changing neutral current decay b --> sgamma in the energy range 1.8 GeV < or = E*gamma < or = 2.8 GeV, covering 95% of the total spectrum. Using 140 fb(-1), we obtain B(b --> sgamma) = (3.55+/-0.32(+0.30+0.11)(-0.31-0.07)) x 10(-4), where the errors are statistical, systematic, and from theory corrections. We also measure the first and second moments of the photon energy spectrum above 1.8 GeV and obtain (Egamma) = 2.292+/-0.026+/-0.034 GeV and (E2gamma) - (Egamma)2 = 0.0305+/-0.0074+/-0.0063 GeV2, where the errors are statistical and systematic.Entities:
Year: 2004 PMID： 15323621 DOI： 10.1103/PhysRevLett.93.061803
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161