Observation of Z(b)(10610) and Z(b)(10650) Decaying to B Mesons

  • Garmash, A.
  • Abdesselam, A.
  • Adachi, I.
  • Aihara, H.
  • Asner, D. M.
  • ... Cheon, B. G.
  • 외 156명
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초록

We report the analysis of the three-body e(+)e(-) -> B (B) over bar pi(+/-), B (B) over bar*pi(+/-), and B*(B) over bar* pi(+/-) processes, including the first observations of the Z(b)(+/-)(10610) -> [B (B) over bar* + c.c.](+/-) and Z(b)(+/-)(10650) -> [B*(B) over bar*](+/-) transitions that are found to dominate the corresponding final states. We measure Born cross sections for the three-body production of sigma(e(+)e(-) -> [B (B) over bar* + c.c.](+/-)pi(-/+)) = [17.4 +/- 1.6(stat) +/- 1.9(syst)]pb and sigma(e(+)e(-) -> [B*(B) over bar*](+/-)pi(-/+)) = [8.75 +/- 1.15(stat) +/- 1.04(syst)] pb and set a 90% C.L. upper limit of sigma(e(+)e(-) -> [B (B) over bar](+/-)pi(-/+)) < 2.9 pb. The results are based on a 121.4 fb(-1) data sample collected with the Belle detector at a center-of-mass energy near the Upsilon(10860) peak.

제목
Observation of Z(b)(10610) and Z(b)(10650) Decaying to B Mesons
저자
Garmash, A.Abdesselam, A.Adachi, I.Aihara, H.Asner, D. M.Aushev, T.Ayad, R.Aziz, T.Babu, V.Badhrees, I.Bakich, A. M.Behera, P.Bhardwaj, V.Bhuyan, B.Bobrov, A.Bondar, A.Bonvicini, G.Bozek, A.Bracko, M.Browder, T. E.Cervenkov, D.Chekelian, V.Chen, A.Cheon, B. G.Chilikin, K.Cho, K.Chobanova, V.Choi, Y.Cinabro, D.Dalseno, J.Danilov, M.Dash, N.Dolezal, Z.Drutskoy, A.Dutta, D.Eidelman, S.Epifanov, D.Farhat, H.Fast, J. E.Ferber, T.Fulsom, B. G.Gaur, V.Gabyshev, N.Gillard, R.Goh, Y. M.Goldenzweig, P.Golob, B.Hara, T.Hayasaka, K.Hayashii, H.Iijima, T.Ishikawa, A.Itoh, R.Iwasaki, Y.Jaegle, I.Joffe, D.Joo, K. K.Julius, T.Kang, K. H.Kato, E.Kawasaki, T.Kim, D. Y.Kim, J. B.Kim, K. T.Kim, M. J.Kim, S. H.Kim, Y. J.Kinoshita, K.Korpar, S.Krizan, P.Krokovny, P.Kuhr, T.Kuzmin, A.Kwon, Y. -J.Lange, J. S.Lee, I. S.Li, C.Li, H.Li, L.Gioi, L. LiLibby, J.Liventsev, D.Lukin, P.Masuda, M.Matvienko, D.Miyabayashi, K.Miyata, H.Mizuk, R.Mohanty, G. B.Moll, A.Mori, T.Mussa, R.Nakano, E.Nakao, M.Nanut, T.Natkaniec, Z.Nishida, S.Olsen, S. L.Pakhlov, P.Pakhlova, G.Pal, B.Park, H.Pedlar, T. K.Pestotnik, R.Petric, M.Piilonen, L. E.Pulvermacher, C.Ribezl, E.Ritter, M.Rostomyan, A.Sahoo, H.Sakai, Y.Sandilya, S.Sanuki, T.Savinov, V.Schneider, O.Schnell, G.Schwanda, C.Seino, Y.Semmler, D.Senyo, K.Seong, I. S.Sevior, M. E.Shebalin, V.Shen, C. P.Shibata, T. -A.Shiu, J. -G.Shwartz, B.Simon, F.Sohn, Y. -S.Solovieva, E.Staric, M.Sumiyoshi, T.Tamponi, U.Tanida, K.Teramoto, Y.Trabelsi, K.Uchida, M.Uehara, S.Uglov, T.Uno, S.Van Hulse, C.Vanhoefer, P.Varner, G.Vorobyev, V.Wagner, M. N.Wang, C. H.Wang, M. -Z.Wang, P.Watanabe, Y.Williams, K. M.Won, E.Yamamoto, H.Yamaoka, J.Yashchenko, S.Yelton, J.Yook, Y.Yuan, C. Z.Zhang, Z. P.Zhilich, V.Zhulanov, V.Zupanc, A.
DOI
10.1103/PhysRevLett.116.212001
발행일
2016-05
유형
Article
저널명
Physical Review Letters
116
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