Observation of a new structure near 10.75 GeV in the energy dependence of the e(+)e(-)-> Upsilon (nS)pi(+)pi(-) (n=1, 2, 3) cross sections

  • Mizuk, R.
  • Bondar, A.
  • Adachi, I
  • Aihara, H.
  • Asner, D. M.
  • ... Cheon, B. G.
  • 외 176명
Citations

WEB OF SCIENCE

55
Citations

SCOPUS

59

초록

We report a new measurement of the e+e−→ ϒ(nS)π+π− (n = 1, 2, 3) cross sections at energies from 10.52 to 11.02 GeV using data collected with the Belle detector at the KEKB asymmetric-energy e+e− collider. We observe a new structure in the energy dependence of the cross sections; if described by a Breit-Wigner function its mass and width are found to be M=(10752.7±5.9−1.1+0.7)MeV/c2 and Γ=(35.5−11.3−3.3+17.6+3.9)MeV, where the first error is statistical and the second is systematic. The global significance of the new structure including systematic uncertainty is 5.2 standard deviations. We also find evidence for the e+e−→ ϒ (1S)π+π− process at the energy 10.52 GeV, which is below the BB¯ threshold. [Figure not available: see fulltext.]

키워드

e plus -e- ExperimentsQuarkoniumSpectroscopyRADIATIVE-CORRECTIONS
제목
Observation of a new structure near 10.75 GeV in the energy dependence of the e(+)e(-)-> Upsilon (nS)pi(+)pi(-) (n=1, 2, 3) cross sections
저자
Mizuk, R.Bondar, A.Adachi, IAihara, H.Asner, D. M.Aulchenko, VAushev, T.Ayad, R.Badhrees, IBahinipati, S.Bakich, A. M.Behera, P.Beleno, C.Berger, M.Bhardwaj, VBilka, T.Biswal, J.Bozek, A.Bracko, M.Browder, T. E.Campajola, M.Cao, L.Cervenkov, D.Chen, A.Cheon, B. G.Chilikin, K.Cho, H. E.Cho, K.Choi, S-KChoi, Y.Cinabro, D.Cunliffe, S.Dash, N.De Nardo, G.Di Capua, F.Di Carlo, S.Dolezal, Z.Dong, T., VEidelman, S.Epifanov, D.Fast, J. E.Ferber, T.Fulsom, B. G.Gaur, VGarmash, A.Giri, A.Goldenzweig, P.Golob, B.Grzymkowska, O.Hara, T.Hartbrich, O.Hayasaka, K.Hayashii, H.Hou, W-SIijima, T.Inami, K.Inguglia, G.Ishikawa, A.Itoh, R.Iwasaki, M.Iwasaki, Y.Jacobs, W. W.Jin, Y.Joffe, D.Joo, K. K.Kang, K. H.Karyan, G.Kawasaki, T.Kichimi, H.Kim, D. Y.Kim, H. J.Kim, K. T.Kim, S. H.Kinoshita, K.Kodys, P.Korpar, S.Kotchetkov, D.Krizan, P.Kroeger, R.Krokovny, P.Kuhr, T.Kumar, R.Kuzmin, A.Lange, J. S.Lee, J. Y.Lee, S. C.Li, L. K.Li Gioi, L.Libby, J.Lieret, K.Liventsev, D.Luo, T.MacNaughton, J.MacQueen, C.Masuda, M.Matsuda, T.Matvienko, D.Merola, M.Miyata, H.Mohanty, G. B.Mori, T.Mussa, R.Nakano, T.Nakao, M.Nath, K. J.Natkaniec, Z.Nayak, M.Niiyama, M.Nisar, N. K.Nishida, S.Nishimura, K.Ogawa, S.Olsen, S. L.Ono, H.Onuki, Y.Oskin, P.Ostrowicz, W.Pakhlov, P.Pakhlova, G.Pal, B.Pang, T.Pardi, S.Park, S-HPaul, S.Pedlar, T. K.Pestotnik, R.Piilonen, L. E.Popov, VPrencipe, E.Ritter, M.Rostomyan, A.Russo, G.Sakai, Y.Salehi, M.Sandilya, S.Sanuki, T.Savinov, VSchneider, O.Schnell, G.Schueler, J.Schwanda, C.Seino, Y.Senyo, K.Seon, O.Sevior, M. E.Shebalin, VShen, C. P.Shiu, J-GShwartz, B.Sokolov, A.Solovieva, E.Staric, M.Strube, J. F.Sumihama, M.Sumiyoshi, T.Sutcliffe, W.Takizawa, M.Tamponi, U.Tanida, K.Tenchini, F.Trabelsi, K.Uglov, T.Unno, Y.Uno, S.Urquijo, P.Usov, Y.Vahsen, S. E.Van Tonder, R.Varner, G.Vinokurova, A.Wang, B.Wang, C. H.Wang, M-ZWang, P.Won, E.Yang, S. B.Ye, H.Yuan, C. Z.Yusa, Y.Zhang, Z. P.Zhilich, VZhukova, V
DOI
10.1007/JHEP10(2019)220
발행일
2019-10
유형
Article
저널명
Journal of High Energy Physics
10
페이지
1 ~ 30

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