First Observation of the Hadronic Transition ϒ(4S)→ηh(b)(1P) and New Measurement of the h(b)(1P) and η(b)(1S) Parameters.

Journal Article (Journal Article)

Using a sample of 771.6×10(6) ϒϒ(4S) decays collected by the Belle experiment at the KEKB e(+)e(-) collider, we observe, for the first time, the transition ϒ(4S)→ηh(b)(1P) with the branching fraction B[ϒ(4S)→ηh(b)(1P)]=(2.18±0.11±0.18)×10(-3) and we measure the h(b)(1P) mass M(h(b)(1P))=(9899.3±0.4±1.0)  MeV/c(2), corresponding to the hyperfine (HF) splitting ΔM(HF)(1P)=(0.6±0.4±1.0)  MeV/c(2). Using the transition h(b)(1P)→γη(b)(1S), we measure the η(b)(1S) mass M(η(b)(1S))=(9400.7±1.7±1.6)  MeV/c(2), corresponding to ΔM(HF)(1S)=(59.6±1.7±1.6)  MeV/c(2), the η(b)(1S) width Γ(η(b)(1S))=(8(-5)(+6)±5)  MeV/c(2) and the branching fraction B[h(b)(1P)→γη(b)(1S)]=(56±8±4)%.

Full Text

Duke Authors

Cited Authors

  • Tamponi, U; Mussa, R; Abdesselam, A; Aihara, H; Arinstein, K; Asner, DM; Atmacan, H; Aushev, T; Ayad, R; Badhrees, I; Bakich, AM; Barberio, E; Bhardwaj, V; Bhuyan, B; Biswal, J; Bondar, A; Bonvicini, G; Bozek, A; Bračko, M; Browder, TE; Červenkov, D; Chen, A; Cheon, BG; Cho, K; Chobanova, V; Choi, S-K; Choi, Y; Cinabro, D; Danilov, M; Doležal, Z; Drásal, Z; Drutskoy, A; Eidelman, S; Epifanov, D; Farhat, H; Fast, JE; Ferber, T; Fulsom, BG; Gaur, V; Gabyshev, N; Garmash, A; Getzkow, D; Gillard, R; Goh, YM; Golob, B; Haba, J; Hayasaka, K; Hayashii, H; He, XH; Hedges, MT; Hou, W-S; Iijima, T; Inami, K; Ishikawa, A; Jaegle, I; Joffe, D; Julius, T; Kato, E; Katrenko, P; Kichimi, H; Kiesling, C; Kim, DY; Kim, HJ; Kim, JH; Kim, KT; Kim, SH; Kinoshita, K; Kodyš, P; Korpar, S; Križan, P; Krokovny, P; Kumita, T; Kuzmin, A; Lange, JS; Lewis, P; Libby, J; Lukin, P; Matvienko, D; Miyabayashi, K; Miyata, H; Mizuk, R; Mohanty, GB; Moll, A; Mori, T; Nakano, E; Nakao, M; Nanut, T; Natkaniec, Z; Nayak, M; Nisar, NK; Nishida, S; Ogawa, S; Okuno, S; Olsen, SL; Ostrowicz, W; Oswald, C; Pakhlova, G; Pal, B; Park, H; Pedlar, TK; Pesántez, L; Pestotnik, R; Petrič, M; Piilonen, LE; Ribežl, E; Ritter, M; Rostomyan, A; Ryu, S; Sakai, Y; Sandilya, S; Santelj, L; Sanuki, T; Sato, Y; Savinov, V; Schneider, O; Schnell, G; Schwanda, C; Semmler, D; Senyo, K; Sevior, ME; Shapkin, M; Shebalin, V; Shen, CP; Shibata, T-A; Shiu, J-G; Shwartz, B; Sibidanov, A; Simon, F; Sohn, Y-S; Sokolov, A; Starič, M; Steder, M; Stypula, J; Tanida, K; Teramoto, Y; Trabelsi, K; Uchida, M; Uglov, T; Unno, Y; Uno, S; Urquijo, P; Van Hulse, C; Vanhoefer, P; Varner, G; Vinokurova, A; Vossen, A; Wagner, MN; Wang, M-Z; Wang, XL; Watanabe, Y; Williams, KM; Won, E; Yamaoka, J; Yashchenko, S; Zhang, ZP; Zhilich, V; Zhulanov, V; Zupanc, A; Belle Collaboration,

Published Date

  • October 2015

Published In

Volume / Issue

  • 115 / 14

Start / End Page

  • 142001 -

PubMed ID

  • 26551806

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/physrevlett.115.142001

Language

  • eng