First Measurement of Inclusive B -> X-s eta Decays

  • Nishimura, K.
  • Browder, T. E.
  • Adachi, I.
  • Aihara, H.
  • Arinstein, K.
  • ... Cheon, B. G.
  • 외 137명
Citations

WEB OF SCIENCE

9
Citations

SCOPUS

13

초록

We report a first measurement of inclusive B -> X-s eta decays, where X-s is a charmless state with unit strangeness. The measurement is based on a pseudoinclusive reconstruction technique and uses a sample of 657 x 10(6)B (B) over bar pairs accumulated with the Belle detector at the KEKB e(+)e(-) collider. For M-X1 < 2.6 GeV/c(2), we measure a branching fraction of [26.1 +/- 3.0(stat)(-2.1)(+1.9)(syst)(-7.1)(+4.0)(model)] x 10(-5) and a direct CP asymmetry of A(CP) = 0.13 +/- 0.04(-0.03)(+0.02). Over half of the signal occurs in the range M-X2 > 1.8 GeV/c(2).

키워드

Atomic physicsBelle detectorsBranching fractionsCP asymmetriesReconstruction techniquesPhysics
제목
First Measurement of Inclusive B -> X-s eta Decays
저자
Nishimura, K.Browder, T. E.Adachi, I.Aihara, H.Arinstein, K.Aushev, T.Bakich, A. M.Balagura, V.Barberio, E.Belous, K.Bhardwaj, V.Bischofberger, M.Bondar, A.Bozek, A.Bracko, M.Chang, M. -C.Chao, Y.Chen, A.Chen, K. -F.Chen, P.Cheon, B. G.Chiang, C. -C.Cho, I. -S.Choi, Y.Dalseno, J.Danilov, M.Dolezal, Z.Drutskoy, A.Eidelman, S.Gabyshev, N.Golob, B.Ha, H.Haba, J.Hara, T.Hayasaka, K.Hayashii, H.Horii, Y.Hoshi, Y.Hou, W. -S.Hyun, H. J.Iijima, T.Inami, K.Itoh, R.Iwabuchi, M.Iwasaki, Y.Joshi, N. J.Julius, T.Kang, J. H.Kapusta, P.Kawai, H.Kawasaki, T.Kichimi, H.Kiesling, C.Kim, H. J.Kim, H. O.Kim, M. J.Kim, Y. J.Kinoshita, K.Ko, B. R.Kodys, P.Korpar, S.Krizan, P.Kumita, T.Kuzmin, A.Kwon, Y. -J.Kyeong, S. -H.Lange, J. S.Lee, M. J.Lee, S. -H.Li, J.Liu, C.Liu, Y.Liventsev, D.Louvot, R.Matyja, A.McOnie, S.Miyabayashi, K.Miyata, H.Miyazaki, Y.Mohanty, G. B.Mori, T.Nakano, E.Nakao, M.Nakazawa, H.Natkaniec, Z.Nishida, S.Ogawa, S.Ohshima, T.Olsen, S. L.Ostrowicz, W.Pakhlova, G.Park, C. W.Park, H.Park, H. K.Park, K. S.Pestotnik, R.Petric, M.Piilonen, L. E.Roehrken, M.Ryu, S.Sahoo, H.Sakai, Y.Schneider, O.Schwanda, C.Schwartz, A. J.Senyo, K.Seon, O.Sevior, M. E.Shapkin, M.Shen, C. P.Shiu, J. -G.Simon, F.Smerkol, P.Sokolov, A.Solovieva, E.Staric, M.Sumiyoshi, T.Suzuki, S.Teramoto, Y.Trabelsi, K.Uehara, S.Uglov, T.Unno, Y.Uno, S.Varner, G.Varvell, K. E.Vervink, K.Wang, C. H.Wang, M. -Z.Wang, P.Watanabe, Y.Wicht, J.Williams, K. M.Won, E.Yamashita, Y.Yamauchi, M.Zhang, C. C.Zhang, Z. P.Zhou, P.Zhulanov, V.Zivko, T.Zupanc, A.Zyukova, O.
DOI
10.1103/PhysRevLett.105.191803
발행일
2010-11
유형
Article
저널명
Physical Review Letters
105
19
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