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  1. Home
  2. Indian Institute of Technology Madras
  3. Publication6
  4. Measurements of the Υ(10860) and Υ(11020) resonances via σ (e+e- → Υ(nS)π+π-)
 
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Measurements of the Υ(10860) and Υ(11020) resonances via σ (e+e- → Υ(nS)π+π-)

Date Issued
14-01-2016
Author(s)
Santel, D.
Kinoshita, K.
Chang, P.
Abdesselam, A.
Adachi, I.
Aihara, H.
Al Said, S.
Arinstein, K.
Asner, D. M.
Aushev, T.
Ayad, R.
Bakich, A. M.
Bansal, V.
Bhuyan, B.
Bobrov, A.
Bondar, A.
Bonvicini, G.
BraÄ ko, M.
Browder, T. E.
ÄŒervenkov, D.
Chekelian, V.
Cheon, B. G.
Chilikin, K.
Cho, K.
Chobanova, V.
Choi, S. K.
Choi, Y.
Cinabro, D.
Dalseno, J.
Danilov, M.
Dingfelder, J.
DoleŽal, Z.
Drásal, Z.
Drutskoy, A.
Eidelman, S.
Farhat, H.
Fast, J. E.
Ferber, T.
Gaur, V.
Gabyshev, N.
Garmash, A.
Getzkow, D.
Gillard, R.
Goh, Y. M.
Haba, J.
Hara, T.
Hayasaka, K.
Hayashii, H.
He, X. H.
Hou, W. S.
Hyun, H. J.
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, H. J.
Kim, J. B.
Kim, J. H.
Kim, M. J.
Kim, S. H.
Kim, Y. J.
Ko, B. R.
Kodyš, P.
Korpar, S.
KriŽan, P.
Krokovny, P.
Kuzmin, A.
Lange, J. S.
Lee, I. S.
Li, Y.
Li Gioi, L.
James Frederick Libby 
Indian Institute of Technology, Madras
Liventsev, D.
Lukin, P.
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.
Nisar, N. K.
Nishida, S.
Ogawa, S.
Okuno, S.
Olsen, S. L.
DOI
10.1103/PhysRevD.93.011101
Abstract
We report new measurements of the total cross sections for e+e-→(nS)π+π- (n=1, 2, 3) and e+e-→bb¯ from a high-luminosity fine scan of the region s=10.63-11.05 GeV with the Belle detector. We observe that the (nS)π+π- spectra have little or no nonresonant component and extract from them the masses and widths of (10860) and (11020) and their relative phase. We find M10860=(10891.1±3.2-1.7+0.6) MeV/c2 and Γ10860=(53.7-5.6 -5.4+7.1 +1.3) MeV and report first measurements M11020=(10987.5-2.5 -2.1+6.4 +9.0) MeV/c2, Γ11020=(61-19 -20+9 +2) MeV, and φ11020-φ10860=(-1.0±0.4-0.1+1.4) rad.
Volume
93
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