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27 April 2024

» pubmed » pmid17358846

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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 ; ;
Date:	2 Feb 2007
Journal:	Phys Rev Lett, 98 (5), 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.
Source:	PubMed, pmid17358846
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