Observation of a χc2′ candidate in γγ→DD̄ production at belle

S Uehara; K Abe; I Adachi; H Aihara; K Arinstein; Y Asano; V Aulchenko; T Aushev; AM Bakich; V Balagura; E Barberio; I Bedny; K Belous; U Bitenc; I Bizjak; S Blyth; A Bondar; A Bozek; M Bračko; TE Browder; MC Chang; A Chen; WT Chen; BG Cheon; R Chistov; SK Choi; Y Choi; YK Choi; A Chuvikov; J Dalseno; M Danilov; M Dash; J Dragic; S Eidelman; D Epifanov; S Fratina; N Gabyshev; A Garmash; T Gershon; G Gokhroo; A Gorišek; HC Ha; K Hayasaka; H Hayashii; M Hazumi; L Hinz; Y Hoshi; S Hou; T Iijima; K Inami; A Ishikawa; R Itoh; M Iwasaki; Y Iwasaki; N Katayama; H Kawai; T Kawasaki; H Kichimi; HJ Kim; SM Kim; S Korpar; P Krokovny; R Kulasiri; CC Kuo; A Kuzmin; YJ Kwon; JS Lange; G Leder; SE Lee; T Lesiak; J Li; SW Lin; D Liventsev; F Mandl; T Matsumoto; A Matyja; W Mitaroff; K Miyabayashi; H Miyata; Y Miyazaki; R Mizuk; T Nagamine; Y Nagasaka; E Nakano; M Nakao; H Nakazawa; S Nishida; O Nitoh; S Ogawa; T Ohshima; T Okabe; S Okuno; SL Olsen; P Pakhlov; CW Park; H Park; R Pestotnik; LE Piilonen; A Poluektov; Y Sakai

Journal article

Observation of a χc2′ candidate in γγ→DD̄ production at belle

S Uehara, K Abe, I Adachi, H Aihara, K Arinstein, Y Asano, V Aulchenko, T Aushev, AM Bakich, V Balagura, E Barberio, I Bedny, K Belous, U Bitenc, I Bizjak, S Blyth, A Bondar, A Bozek, M Bračko, TE Browder Show all

Physical Review Letters | AMER PHYSICAL SOC | Published : 2006

DOI: 10.1103/PhysRevLett.96.082003

Abstract

We report on a search for new resonant states in the process γγ→DD̄. A candidate C-even charmonium state is observed in the vicinity of 3.93GeV/c2. The production rate and the angular distribution in the γγ center-of-mass frame suggest that this state is the previously unobserved χc2′, the 2P23 charmonium state. © 2006 The American Physical Society.

Observation of a χc2′ candidate in γγ→DD̄ production at belle

Abstract

University of Melbourne Researchers

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