Measurement of the Direct CP Asymmetry in over-bar & RARR; gamma; Decays with a Lepton Tag

  • Pesantez, L.
  • Urquijo, P.
  • Dingfelder, J.
  • Abdesselam, A.
  • Adachi, I.
  • ... Cheon, Byung Gu
  • 외 178명
Citations

WEB OF SCIENCE

6
Citations

SCOPUS

10

초록

We report the measurement of the direct CP asymmetry in the radiative (B) over bar -> Xs+d gamma decay using a data sample of (772 +/- 11) x 10(6) B (B) over bar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The CP asymmetry is measured as a function of the photon energy threshold. For E-gamma* >= 2.1 GeV, where E-gamma* is the photon energy in the center-of-mass frame, we obtain A(CP) ((B) over bar -> Xs+d gamma) = (2.2 +/- 3.9 +/- 0.9)%, consistent with the standard model prediction.

제목
Measurement of the Direct CP Asymmetry in over-bar & RARR; gamma; Decays with a Lepton Tag
저자
Pesantez, L.Urquijo, P.Dingfelder, J.Abdesselam, A.Adachi, I.Adamczyk, K.Aihara, H.Al Said, S.Arinstein, K.Asner, D. M.Aulchenko, V.Aushev, T.Ayad, R.Bahinipati, S.Bakich, A. M.Bansal, V.Barberio, E.Bhardwaj, V.Bhuyan, B.Bobrov, A.Bondar, A.Bonvicini, G.Bozek, A.Bracko, M.Browder, T. E.Cervenkov, D.Chekelian, V.Chen, A.Cheon, Byung GuChilikin, K.Chistov, R.Cho, K.Chobanova, V.Choi, Y.Cinabro, D.Dalseno, J.Dolezal, Z.Drasal, Z.Drutskoy, A.Dutta, D.Eidelman, S.Farhat, H.Fast, J. E.Ferber, T.Frost, O.Gaur, V.Gabyshev, N.Ganguly, S.Garmash, A.Getzkow, D.Gillard, R.Goh, Y. M.Golob, B.Haba, J.Hasenbusch, J.Hayashii, H.He, X. H.Heller, A.Horiguchi, T.Hou, W. -S.Huschle, M.Iijima, T.Inami, K.Ishikawa, A.Itoh, R.Iwasaki, Y.Jaegle, I.Joffe, D.Julius, T.Kang, K. H.Kato, E.Kawasaki, T.Kiesling, C.Kim, D. Y.Kim, J. B.Kim, J. H.Kim, K. T.Kim, M. J.Kim, S. H.Kim, Y. J.Ko, B. R.Kodys, P.Korpar, S.Krizan, P.Krokovny, P.Kronenbitter, B.Kuhr, T.Kumita, T.Kuzmin, A.Kwon, Y. -J.Lange, J. S.Lee, I. S.Li, Y.Li Gioi, L.Libby, J.Liventsev, D.Lukin, P.Matvienko, D.Miyabayashi, K.Miyata, H.Mizuk, R.Mohanty, G. B.Moll, A.Moon, H. K.Nakano, E.Nakao, M.Nanut, T.Natkaniec, Z.Nayak, M.Ng, C.Nisar, N. K.Nishida, S.Ogawa, S.Okuno, S.Olsen, S. L.Oswald, C.Pakhlov, P.Pakhlova, G.Park, C. W.Park, H.Pedlar, T. K.Pestotnik, R.Petric, M.Piilonen, L. E.Ribezl, E.Ritter, M.Rostomyan, A.Rozanska, M.Sakai, Y.Sandilya, S.Santelj, L.Sanuki, T.Sato, Y.Savinov, V.Schneider, O.Schnell, G.Schwanda, C.Schwartz, A. J.Senyo, K.Seon, O.Sevior, M. E.Shebalin, V.Shen, C. P.Shibata, T. -A.Shiu, J. -G.Shwartz, B.Sibidanov, A.Simon, F.Sohn, Y. -S.Sokolov, A.Solovieva, E.Staric, M.Steder, M.Sumiyoshi, T.Tamponi, U.Taniguchi, N.Tatishvili, G.Teramoto, Y.Trabelsi, K.Uchida, M.Uglov, T.Unno, Y.Uno, S.Usov, Y.Van Hulse, C.Vanhoefer, P.Varner, G.Vinokurova, A.Vorobyev, V.Wagner, M. N.Wang, B.Wang, C. H.Wang, M. -Z.Wang, P.Watanabe, Y.Williams, K. M.Won, E.Yamaoka, J.Yashchenko, S.Yook, Y.Zhang, Z. P.Zhilich, V.Zhulanov, V.Zupanc, A.
DOI
10.1103/PhysRevLett.114.151601
발행일
2015-04
유형
Article
저널명
Physical Review Letters
114
15
페이지
1 ~ 7

파일 다운로드