Study of dipion bottomonium transitions and search for the Hb(1P) state
We study inclusive dipion decays using a sample of 108×106Υ(3S) events recorded with the BABAR detector. We search for the decay mode Υ(3S)→π+π−hb(1P) and find no evidence for the bottomonium spin-singlet state hb(1P) in the invariant mass distribution recoiling against the π+π− system. Assuming the...
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| Hauptverfasser: | , , , |
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| Körperschaft: | |
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
27 July 2011
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| In: |
Physical review. D, Particles, fields, gravitation, and cosmology
Year: 2011, Jahrgang: 84, Heft: 1, Pages: 1-9 |
| ISSN: | 1550-2368 |
| DOI: | 10.1103/PhysRevD.84.011104 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevD.84.011104 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.84.011104 
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| Verfasserangaben: | J.P. Lees, V. Poireau, V. Tisserand, J. Garra Tico, E. Grauges, M. Martinelli, D.A. Milanes, A. Palano, M. Pappagallo, G. Eigen, B. Stugu, L. Sun, D.N. Brown, L.T. Kerth, Yu. G. Kolomensky, G. Lynch, H. Koch, T. Schroeder, D.J. Asgeirsson, C. Hearty, T.S. Mattison, J.A. McKenna, R.Y. So, A. Khan, V. E. Blinov, A.R. Buzykaev, V.P. Druzhinin, V.B. Golubev, E.A. Kravchenko, A.P. Onuchin, S.I. Serednyakov, Yu. I. Skovpen, E.P. Solodov, K. Yu. Todyshev, A.N. Yushkov, M. Bondioli, D. Kirkby, A.J. Lankford, M. Mandelkern, D.P. Stoker, H. Atmacan, J.W. Gary, F. Liu, O. Long, G.M. Vitug, C. Campagnari, T.M. Hong, D. Kovalskyi, J.D. Richman, C.A. West, A.M. Eisner, J. Kroseberg, W.S. Lockman, A.J. Martinez, T. Schalk, B.A. Schumm, A. Seiden, C.H. Cheng, D.A. Doll, B. Echenard, K.T. Flood, D.G. Hitlin, P. Ongmongkolkul, F.C. Porter, A.Y. Rakitin, R. Andreassen, M.S. Dubrovin, B.T. Meadows, M.D. Sokoloff, P.C. Bloom, W.T. Ford, A. Gaz, M. Nagel, U. Nauenberg, J.G. Smith, S.R. Wagner, R. Ayad, W.H. Toki, B. Spaan, M.J. Kobel, K.R. Schubert, R. Schwierz, D. Bernard, M. Verderi, P.J. Clark, S. Playfer, J.E. Watson, D. Bettoni, C. Bozzi, R. Calabrese, G. Cibinetto, E. Fioravanti, I. Garzia, E. Luppi, M. Munerato, M. Negrini, L. Piemontese, R. Baldini-Ferroli, A. Calcaterra, R. de Sangro, G. Finocchiaro, M. Nicolaci, S. Pacetti, P. Patteri, I.M. Peruzzi, M. Piccolo, M. Rama, A. Zallo, R. Contri, E. Guido, M. Lo Vetere, M.R. Monge, S. Passaggio, C. Patrignani, E. Robutti, B. Bhuyan, V. Prasad, C.L. Lee, M. Morii, A.J. Edwards, A. Adametz, J. Marks, U. Uwer, [und weitere] (BABAR Collaboration) |
| Zusammenfassung: | We study inclusive dipion decays using a sample of 108×106Υ(3S) events recorded with the BABAR detector. We search for the decay mode Υ(3S)→π+π−hb(1P) and find no evidence for the bottomonium spin-singlet state hb(1P) in the invariant mass distribution recoiling against the π+π− system. Assuming the hb(1P) mass to be 9.900 GeV/c2, we measure the upper limit on the branching fraction B[Υ(3S)→π+π−hb(1P)]<1.2×10−4, at 90% confidence level. We also investigate the χbJ(2P)→π+π−χbJ(1P), Υ(3S)→π+π−Υ(2S), and Υ(2S)→π+π−Υ(1S) dipion transitions and present an improved measurement of the branching fraction of the Υ(3S)→π+π−Υ(2S) decay and of the Υ(3S)−Υ(2S) mass difference. |
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| Beschreibung: | Im Titel ist "b" tiefgestellt Gesehen am 15.08.2022 |
| Beschreibung: | Online Resource |
| ISSN: | 1550-2368 |
| DOI: | 10.1103/PhysRevD.84.011104 |