Production of new charmoniumlike states in e+e- -->J/psiD*D[over](*) at sqrt[s] approximately 10.6 GeV

P Pakhlov; I Adachi; H Aihara; K Arinstein; T Aushev; T Aziz; A M Bakich; V Balagura; E Barberio; I Bedny; K Belous; V Bhardwaj; U Bitenc; A Bondar; A Bozek; M Bracko; T E Browder; Y Chao; A Chen; K-F Chen; W T Chen; B G Cheon; R Chistov; Y Choi; J Dalseno; M Danilov; M Dash; A Drutskoy; S Eidelman; B Golob; H Ha; K Hayasaka; M Hazumi; D Heffernan; Y Hoshi; W-S Hou; Y B Hsiung; H J Hyun; T Iijima; K Ikado; K Inami; A Ishikawa; H Ishino; R Itoh; M Iwasaki; Y Iwasaki; D H Kah; J H Kang; P Kapusta; N Katayama; H Kawai; T Kawasaki; H Kichimi; Y J Kim; K Kinoshita; S Korpar; P Krizan; P Krokovny; R Kumar; C C Kuo; Y-J Kwon; J S Lange; M J Lee; S E Lee; T Lesiak; A Limosani; S-W Lin; Y Liu; D Liventsev; F Mandl; A Matyja; T Medvedeva; H Miyake; H Miyata; Y Miyazaki; R Mizuk; G R Moloney; T Mori; E Nakano; M Nakao; Z Natkaniec; S Nishida; O Nitoh; S Noguchi; S Ogawa; T Ohshima; S Okuno; S L Olsen; H Ozaki; G Pakhlova; H Palka; C W Park; L S Peak; R Pestotnik; L E Piilonen; H Sahoo; Y Sakai; O Schneider; R Seidl; K Senyo; M E Sevior; M Shapkin; C P Shen; H Shibuya; J-G Shiu; J B Singh; A Somov; S Stanic; M Staric; T Sumiyoshi; S Suzuki; F Takasaki; K Tamai; N Tamura; M Tanaka; G N Taylor; Y Teramoto; I Tikhomirov; S Uehara; K Ueno; T Uglov; Y Unno; S Uno; P Urquijo; Y Usov; G Varner; K Vervink; C H Wang; P Wang; X L Wang; Y Watanabe; E Won; B D Yabsley; Y Yamashita; M Yamauchi; C Z Yuan; C C Zhang; Z P Zhang; V Zhilich; A Zupanc; O Zyukova; Belle Collaboration

doi:10.1103/PhysRevLett.100.202001

Production of new charmoniumlike states in e+e- -->J/psiDD[over]() at sqrt[s] approximately 10.6 GeV

Phys Rev Lett. 2008 May 23;100(20):202001. doi: 10.1103/PhysRevLett.100.202001. Epub 2008 May 19.

Authors

P Pakhlov¹, I Adachi, H Aihara, K Arinstein, T Aushev, T Aziz, A M Bakich, V Balagura, E Barberio, I Bedny, K Belous, V Bhardwaj, U Bitenc, A Bondar, A Bozek, M Bracko, T E Browder, Y Chao, A Chen, K-F Chen, W T Chen, B G Cheon, R Chistov, Y Choi, J Dalseno, M Danilov, M Dash, A Drutskoy, S Eidelman, B Golob, H Ha, K Hayasaka, M Hazumi, D Heffernan, Y Hoshi, W-S Hou, Y B Hsiung, H J Hyun, T Iijima, K Ikado, K Inami, A Ishikawa, H Ishino, R Itoh, M Iwasaki, Y Iwasaki, D H Kah, J H Kang, P Kapusta, N Katayama, H Kawai, T Kawasaki, H Kichimi, Y J Kim, K Kinoshita, S Korpar, P Krizan, P Krokovny, R Kumar, C C Kuo, Y-J Kwon, J S Lange, M J Lee, S E Lee, T Lesiak, A Limosani, S-W Lin, Y Liu, D Liventsev, F Mandl, A Matyja, T Medvedeva, H Miyake, H Miyata, Y Miyazaki, R Mizuk, G R Moloney, T Mori, E Nakano, M Nakao, Z Natkaniec, S Nishida, O Nitoh, S Noguchi, S Ogawa, T Ohshima, S Okuno, S L Olsen, H Ozaki, G Pakhlova, H Palka, C W Park, L S Peak, R Pestotnik, L E Piilonen, H Sahoo, Y Sakai, O Schneider, R Seidl, K Senyo, M E Sevior, M Shapkin, C P Shen, H Shibuya, J-G Shiu, J B Singh, A Somov, S Stanic, M Staric, T Sumiyoshi, S Suzuki, F Takasaki, K Tamai, N Tamura, M Tanaka, G N Taylor, Y Teramoto, I Tikhomirov, S Uehara, K Ueno, T Uglov, Y Unno, S Uno, P Urquijo, Y Usov, G Varner, K Vervink, C H Wang, P Wang, X L Wang, Y Watanabe, E Won, B D Yabsley, Y Yamashita, M Yamauchi, C Z Yuan, C C Zhang, Z P Zhang, V Zhilich, A Zupanc, O Zyukova; Belle Collaboration

Affiliation

¹ Institute for Theoretical and Experimental Physics, Moscow.

PMID: 18518525
DOI: 10.1103/PhysRevLett.100.202001

Abstract

We report a study of the processes e+e- -->J/psiD*D[over](*). In J/psiD*D[over]* we observe a significant enhancement in the D*D[over]* invariant mass spectrum, which we interpret as a new charmoniumlike state and denote X(4160). The X(4160) parameters are M=(4156(-20)+25+/-15) MeV/c2 and Gamma=(139(-61)+111+/-21) MeV. We also report a new measurement of the X(3940) mass and width: M=(3942(-6)+7+/-6) MeV/c2 and Gamma=(37(-15)+26+/-8) MeV. The analysis is based on a 693 fb(-1) data sample recorded near the Upsilon(4S) resonance by the Belle detector at the KEKB asymmetric-energy collider.