Measurement of inclusive Ds, D0, and J/psi rates and determination of the Bs(*)Bs(*) production fraction in bb Events at the Upsilon(5S) resonance

A Drutskoy; K Abe; K Abe; I Adachi; H Aihara; D Anipko; K Arinstein; V Aulchenko; T Aushev; S Banerjee; E Barberio; M Barbero; I Bedny; K Belous; U Bitenc; I Bizjak; S Blyth; A Bondar; A Bozek; M Bracko; J Brodzicka; T E Browder; P Chang; Y Chao; A Chen; K-F Chen; W T Chen; B G Cheon; R Chistov; Y Choi; Y K Choi; A Chuvikov; S Cole; J Dalseno; M Danilov; M Dash; J Dragic; S Eidelman; D Epifanov; S Fratina; N Gabyshev; T Gershon; A Go; G Gokhroo; P Goldenzweig; B Golob; H Ha; J Haba; T Hara; K Hayasaka; H Hayashii; M Hazumi; D Heffernan; T Higuchi; Y Hoshi; S Hou; W-S Hou; Y B Hsiung; T Iijima; A Imoto; K Inami; A Ishikawa; R Itoh; M Iwasaki; Y Iwasaki; J H Kang; N Katayama; H Kawai; T Kawasaki; H R Khan; H Kichimi; S K Kim; Y J Kim; K Kinoshita; S Korpar; P Krizan; P Krokovny; R Kulasiri; R Kumar; C C Kuo; A Kuzmin; Y-J Kwon; J S Lange; G Leder; J Lee; M J Lee; T Lesiak; J Li; A Limosani; S-W Lin; D Liventsev; J Macnaughton; G Majumder; F Mandl; T Matsumoto; A Matyja; S McOnie; W Mitaroff; K Miyabayashi; H Miyake; H Miyata; Y Miyazaki; R Mizuk; G R Moloney; T Nagamine; Y Nagasaka; E Nakano; M Nakao; Z Natkaniec; S Nishida; O Nitoh; T Nozaki; S Ogawa; T Ohshima; S Okuno; S L Olsen; Y Onuki; P Pakhlov; G Pakhlova; H Park; K S Park; R Pestotnik; L E Piilonen; A Poluektov; Y Sakai; N Satoyama; T Schietinger; O Schneider; C Schwanda; A J Schwartz; R Seidl; K Senyo; M E Sevior; M Shapkin; H Shibuya; B Shwartz; V Sidorov; J B Singh; A Sokolov; A Somov; S Stanic; M Staric; H Stoeck; K Sumisawa; T Sumiyoshi; S Suzuki; S Y Suzuki; F Takasaki; K Tamai; N Tamura; M Tanaka; G N Taylor; Y Teramoto; X C Tian; K Trabelsi; T Tsukamoto; S Uehara; T Uglov; K Ueno; Y Unno; S Uno; P Urquijo; Y Usov; G Varner; S Villa; C C Wang; C H Wang; Y Watanabe; J Wiechczynski; E Won; Q L Xie; B D Yabsley; A Yamaguchi; Y Yamashita; M Yamauchi; Y Yusa; L M Zhang; Z P Zhang; V Zhilich; A Zupanc; Belle Collaboration

doi:10.1103/PhysRevLett.98.052001

Measurement of inclusive Ds, D0, and J/psi rates and determination of the Bs()Bs() production fraction in bb Events at the Upsilon(5S) resonance

Phys Rev Lett. 2007 Feb 2;98(5):052001. doi: 10.1103/PhysRevLett.98.052001. Epub 2007 Jan 29.

Authors

A Drutskoy¹, K Abe, K Abe, I Adachi, H Aihara, D Anipko, K Arinstein, V Aulchenko, T Aushev, S Banerjee, E Barberio, M Barbero, I Bedny, K Belous, U Bitenc, I Bizjak, S Blyth, A Bondar, A Bozek, M Bracko, J Brodzicka, T E Browder, P Chang, Y Chao, A Chen, K-F Chen, W T Chen, B G Cheon, R Chistov, Y Choi, Y K Choi, A Chuvikov, S Cole, J Dalseno, M Danilov, M Dash, J Dragic, S Eidelman, D Epifanov, S Fratina, N Gabyshev, T Gershon, A Go, G Gokhroo, P Goldenzweig, B Golob, H Ha, J Haba, T Hara, K Hayasaka, H Hayashii, M Hazumi, D Heffernan, T Higuchi, Y Hoshi, S Hou, W-S Hou, Y B Hsiung, T Iijima, A Imoto, K Inami, A Ishikawa, R Itoh, M Iwasaki, Y Iwasaki, J H Kang, N Katayama, H Kawai, T Kawasaki, H R Khan, H Kichimi, S K Kim, Y J Kim, K Kinoshita, S Korpar, P Krizan, P Krokovny, R Kulasiri, R Kumar, C C Kuo, A Kuzmin, Y-J Kwon, J S Lange, G Leder, J Lee, M J Lee, T Lesiak, J Li, A Limosani, S-W Lin, D Liventsev, J Macnaughton, G Majumder, F Mandl, T Matsumoto, A Matyja, S McOnie, W Mitaroff, K Miyabayashi, H Miyake, H Miyata, Y Miyazaki, R Mizuk, G R Moloney, T Nagamine, Y Nagasaka, E Nakano, M Nakao, Z Natkaniec, S Nishida, O Nitoh, T Nozaki, S Ogawa, T Ohshima, S Okuno, S L Olsen, Y Onuki, P Pakhlov, G Pakhlova, H Park, K S Park, R Pestotnik, L E Piilonen, A Poluektov, Y Sakai, N Satoyama, T Schietinger, O Schneider, C Schwanda, A J Schwartz, R Seidl, K Senyo, M E Sevior, M Shapkin, H Shibuya, B Shwartz, V Sidorov, J B Singh, A Sokolov, A Somov, S Stanic, M Staric, H Stoeck, K Sumisawa, T Sumiyoshi, S Suzuki, S Y Suzuki, F Takasaki, K Tamai, N Tamura, M Tanaka, G N Taylor, Y Teramoto, X C Tian, K Trabelsi, T Tsukamoto, S Uehara, T Uglov, K Ueno, Y Unno, S Uno, P Urquijo, Y Usov, G Varner, S Villa, C C Wang, C H Wang, Y Watanabe, J Wiechczynski, E Won, Q L Xie, B D Yabsley, A Yamaguchi, Y Yamashita, M Yamauchi, Y Yusa, L M Zhang, Z P Zhang, V Zhilich, A Zupanc; Belle Collaboration

Affiliation

¹ University of Cincinnati, Cincinnati, Ohio 45221, USA.

PMID: 17358846
DOI: 10.1103/PhysRevLett.98.052001

Abstract

The inclusive production of D(s), D(0), and J/psi mesons is studied using a 1.86 fb(-1) data sample collected on the Upsilon(5S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The number of bb events in this Upsilon(5S) data sample is determined. We measure the branching fractions B(Upsilon(5S)-->D(s)X)/2=(23.6+/-1.2+/-3.6)%, B(Upsilon(5S)-->D(0)X)/2=(53.8+/-2.0+/-3.4)%, and B(Upsilon(5S)-->J/psiX)/2=(1.030+/-0.080+/-0.067)%. From the D(s) and D(0) inclusive branching fractions the ratio f(s)=(18.0+/-1.3+/-3.2)% of B(s)(*)B(s)(*) to the total bb quark pair production at the Upsilon(5S) energy is obtained in a model-dependent way.