Observation of a narrow charmoniumlike state in exclusive B+/--->K+/-pi+pi-J/psi decays

S-K Choi; S L Olsen; K Abe; T Abe; I Adachi; Byoung Sup Ahn; H Aihara; K Akai; M Akatsu; M Akemoto; Y Asano; T Aso; V Aulchenko; T Aushev; A M Bakich; Y Ban; S Banerjee; A Bondar; A Bozek; M Bracko; J Brodzicka; T E Browder; P Chang; Y Chao; K-F Chen; B G Cheon; R Chistov; Y Choi; Y K Choi; M Danilov; L Y Dong; A Drutskoy; S Eidelman; V Eiges; J Flanagan; C Fukunaga; K Furukawa; N Gabyshev; T Gershon; B Golob; H Guler; R Guo; C Hagner; F Handa; T Hara; N C Hastings; H Hayashii; M Hazumi; L Hinz; Y Hoshi; W-S Hou; Y B Hsiung; H-C Huang; T Iijima; K Inami; A Ishikawa; R Itoh; M Iwasaki; Y Iwasaki; J H Kang; S U Kataoka; N Katayama; H Kawai; T Kawasaki; H Kichimi; E Kikutani; H J Kim; Hyunwoo Kim; J H Kim; S K Kim; K Kinoshita; H Koiso; P Koppenburg; S Korpar; P Krizan; P Krokovny; S Kumar; A Kuzmin; J S Lange; G Leder; S H Lee; T Lesiak; S-W Lin; D Liventsev; J MacNaughton; G Majumder; F Mandl; D Marlow; T Matsumoto; S Michizono; T Mimashi; W Mitaroff; K Miyabayashi; H Miyake; D Mohapatra; G R Moloney; T Nagamine; Y Nagasaka; T Nakadaira; T T Nakamura; M Nakao; Z Natkaniec; S Nishida; O Nitoh; T Nozaki; S Ogawa; Y Ogawa; K Ohmi; Y Ohnishi; T Ohshima; N Ohuchi; K Oide; T Okabe; S Okuno; W Ostrowicz; H Ozaki; H Palka; H Park; N Parslow; L E Piilonen; H Sagawa; S Saitoh; Y Sakai; T R Sarangi; M Satapathy; A Satpathy; O Schneider; A J Schwartz; S Semenov; K Senyo; R Seuster; M E Sevior; H Shibuya; T Shidara; B Shwartz; V Sidorov; N Soni; S Stanic; M Staric; A Sugiyama; T Sumiyoshi; S Suzuki; F Takasaki; K Tamai; N Tamura; M Tanaka; M Tawada; G N Taylor; Y Teramoto; T Tomura; K Trabelsi; T Tsukamoto; S Uehara; K Ueno; Y Unno; S Uno; G Varner; K E Varvell; C C Wang; C H Wang; J G Wang; Y Watanabe; E Won; B D Yabsley; Y Yamada; A Yamaguchi; Y Yamashita; H Yanai; Heyoung Yang; J Ying; M Yoshida; C C Zhang; Z P Zhang; D Zontar; Belle Collaboration

doi:10.1103/PhysRevLett.91.262001

Observation of a narrow charmoniumlike state in exclusive B+/--->K+/-pi+pi-J/psi decays

Phys Rev Lett. 2003 Dec 31;91(26 Pt 1):262001. doi: 10.1103/PhysRevLett.91.262001. Epub 2003 Dec 23.

Authors

S-K Choi¹, S L Olsen, K Abe, T Abe, I Adachi, Byoung Sup Ahn, H Aihara, K Akai, M Akatsu, M Akemoto, Y Asano, T Aso, V Aulchenko, T Aushev, A M Bakich, Y Ban, S Banerjee, A Bondar, A Bozek, M Bracko, J Brodzicka, T E Browder, P Chang, Y Chao, K-F Chen, B G Cheon, R Chistov, Y Choi, Y K Choi, M Danilov, L Y Dong, A Drutskoy, S Eidelman, V Eiges, J Flanagan, C Fukunaga, K Furukawa, N Gabyshev, T Gershon, B Golob, H Guler, R Guo, C Hagner, F Handa, T Hara, N C Hastings, H Hayashii, M Hazumi, L Hinz, Y Hoshi, W-S Hou, Y B Hsiung, H-C Huang, T Iijima, K Inami, A Ishikawa, R Itoh, M Iwasaki, Y Iwasaki, J H Kang, S U Kataoka, N Katayama, H Kawai, T Kawasaki, H Kichimi, E Kikutani, H J Kim, Hyunwoo Kim, J H Kim, S K Kim, K Kinoshita, H Koiso, P Koppenburg, S Korpar, P Krizan, P Krokovny, S Kumar, A Kuzmin, J S Lange, G Leder, S H Lee, T Lesiak, S-W Lin, D Liventsev, J MacNaughton, G Majumder, F Mandl, D Marlow, T Matsumoto, S Michizono, T Mimashi, W Mitaroff, K Miyabayashi, H Miyake, D Mohapatra, G R Moloney, T Nagamine, Y Nagasaka, T Nakadaira, T T Nakamura, M Nakao, Z Natkaniec, S Nishida, O Nitoh, T Nozaki, S Ogawa, Y Ogawa, K Ohmi, Y Ohnishi, T Ohshima, N Ohuchi, K Oide, T Okabe, S Okuno, W Ostrowicz, H Ozaki, H Palka, H Park, N Parslow, L E Piilonen, H Sagawa, S Saitoh, Y Sakai, T R Sarangi, M Satapathy, A Satpathy, O Schneider, A J Schwartz, S Semenov, K Senyo, R Seuster, M E Sevior, H Shibuya, T Shidara, B Shwartz, V Sidorov, N Soni, S Stanic, M Staric, A Sugiyama, T Sumiyoshi, S Suzuki, F Takasaki, K Tamai, N Tamura, M Tanaka, M Tawada, G N Taylor, Y Teramoto, T Tomura, K Trabelsi, T Tsukamoto, S Uehara, K Ueno, Y Unno, S Uno, G Varner, K E Varvell, C C Wang, C H Wang, J G Wang, Y Watanabe, E Won, B D Yabsley, Y Yamada, A Yamaguchi, Y Yamashita, H Yanai, Heyoung Yang, J Ying, M Yoshida, C C Zhang, Z P Zhang, D Zontar; Belle Collaboration

Affiliation

¹ Gyeongsang National University, Chinju.

PMID: 14754041
DOI: 10.1103/PhysRevLett.91.262001

Abstract

We report the observation of a narrow charmoniumlike state produced in the exclusive decay process B+/--->K+/-pi(+)pi(-)J/psi. This state, which decays into pi(+)pi(-)J/psi, has a mass of 3872.0+/-0.6(stat)+/-0.5(syst) MeV, a value that is very near the M(D0)+M(D(*0)) mass threshold. The results are based on an analysis of 152M B-Bmacr; events collected at the Upsilon(4S) resonance in the Belle detector at the KEKB collider. The signal has a statistical significance that is in excess of 10sigma.