Your browser doesn't support javascript.
loading
Observation of two resonant structures in e+ e- -->pi+ pi- psi(2S) via initial-state radiation at Belle.
Wang, X L; Yuan, C Z; Shen, C P; Wang, P; Adachi, I; Aihara, H; Arinstein, K; Aushev, T; Bakich, A M; Barberio, E; Bedny, I; Bhardwaj, V; Bitenc, U; Blyth, S; Bondar, A; Bozek, A; Bracko, M; Brodzicka, J; Browder, T E; Chang, P; Chen, A; Chen, K-F; Cheon, B G; Chiang, C-C; Chistov, R; Cho, I-S; Choi, S-K; Choi, Y; Dalseno, J; Danilov, M; Dash, M; Drutskoy, A; Eidelman, S; Epifanov, D; Gabyshev, N; Go, A; Gokhroo, G; Ha, H; Hayasaka, K; Hayashii, H; Hazumi, M; Heffernan, D; Hoshi, Y; Hou, W-S; Hyun, H J; Iijima, T; Inami, K; Ishikawa, A; Ishino, H; Itoh, R.
Affiliation
  • Wang XL; Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, PR China.
Phys Rev Lett ; 99(14): 142002, 2007 Oct 05.
Article in En | MEDLINE | ID: mdl-17930661
ABSTRACT
The cross section for e+ e- --> pi+ pi- psi(2S) between threshold and sqrt[s]=5.5 GeV is measured using 673 fb(-1) of data on and off the Upsilon(4S) resonance collected with the Belle detector at KEKB. Two resonant structures are observed in the pi+ pi- psi(2S) invariant-mass distribution, one at 4361 +/- 9 +/- 9 MeV/c2 with a width of 74 +/- 15 +/- 10 MeV/c2, and another at 4664 +/- 11 +/- 5 MeV/c2 with a width of 48 +/- 15 +/- 3 MeV/c2, if the mass spectrum is parametrized with the coherent sum of two Breit-Wigner functions. These values do not match those of any of the known charmonium states.
Search on Google
Add to My VHL
Print
XML
PubMed Links

Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2007 Document type: Article
Search on Google
Add to My VHL
Print
XML
PubMed Links

Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2007 Document type: Article