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24 April 2024

» pubmed » pmid11863715

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Production of prompt charmonia in e(+)e(-) annihilation at square root of s approximately equals 0.6 GeV
K Abe ; K Abe ; T Abe ; I Adachi ; Byoung Sup Ahn ; H Aihara ; M Akatsu ; Y Asano ; T Aso ; T Aushev ; A M Bakich ; Y Ban ; E Banas ; S Behari ; P K Behera ; A Bondar ; A Bozek ; T E Browder ; B C K Casey ; P Chang ; Y Chao ; B G Cheon ; R Chistov ; S-K Choi ; Y Choi ; L Y Dong ; J Dragic ; A Drutskoy ; S Eidelman ; Y Enari ; F Fang ; H Fujii ; C Fukunaga ; M Fukushima ; N Gabyshev ; A Garmash ; T Gershon ; A Gordon ; R Guo ; J Haba ; H Hamasaki ; F Handa ; K Hara ; T Hara ; H Hayashii ; M Hazumi ; E M Heenan ; I Higuchi ; T Hokuue ; Y Hoshi ; S R Hou ; W-S Hou ; H-C Huang ; Y Igarashi ; T Iijima ; H Ikeda ; K Inami ; A Ishikawa ; H Ishino ; R Itoh ; H Iwasaki ; Y Iwasaki ; P Jalocha ; H K Jang ; J H Kang ; J S Kang ; P Kapusta ; N Katayama ; H Kawai ; N Kawamura ; T Kawasaki ; H Kichimi ; D W Kim ; Heejong Kim ; H J Kim ; H O Kim ; Hyunwoo Kim ; S K Kim ; T H Kim ; K Kinoshita ; S Kobayashi ; H Konishi ; P Krokovny ; R Kulasiri ; S Kumar ; A Kuzmin ; Y-J Kwon ; J S Lange ; G Leder ; S H Lee ; D Liventsev ; R-S Lu ; J MacNaughton ; D Marlow ; T Matsubara ; S Matsumoto ; T Matsumoto ; Y Mikami ; K Miyabayashi ; H Miyake ; H Miyata ; G R Moloney ; S Mori ; T Mori ; T Nagamine ; Y Nagasaka ; Y Nagashima ; E Nakano ; M Nakao ; J W Nam ; Z Natkaniec ; K Neichi ; S Nishida ; O Nitoh ; S Noguchi ; T Nozaki ; S Ogawa ; T Ohshima ; T Okabe ; S Okuno ; W Ostrowicz ; H Ozaki ; P Pakhlov ; H Palka ; C S Park ; C W Park ; H Park ; K S Park ; M Peters ; L E Piilonen ; N Root ; K Rybicki ; J Ryuko ; H Sagawa ; Y Sakai ; H Sakamoto ; M Satapathy ; A Satpathy ; S Schrenk ; S Semenov ; K Senyo ; M E Sevior ; H Shibuya ; B Shwartz ; S Stanic ; A Sugi ; A Sugiyama ; K Sumisawa ; T Sumiyoshi ; J-I Suzuki ; K Suzuki ; S Suzuki ; S K Swain ; T Takahashi ; F Takasaki ; M Takita ; K Tamai ; N Tamura ; J Tanaka ; M Tanaka ; Y Tanaka ; G N Taylor ; Y Teramoto ; M Tomoto ; T Tomura ; S N Tovey ; K Trabelsi ; W Trischuk ; T Tsuboyama ; T Tsukamoto ; S Uehara ; K Ueno ; Y Unno ; S Uno ; Y Ushiroda ; S E Vahsen ; K E Varvell ; C C Wang ; C H Wang ; J G Wang ; M-Z Wang ; Y Watanabe ; E Won ; B D Yabsley ; Y Yamada ; M Yamaga ; A Yamaguchi ; Y Yamashita ; M Yamauchi ; K Yoshida ; Y Yuan ; Y Yusa ; C C Zhang ; J Zhang ; H W Zhao ; Y Zheng ; V Zhilich ; D Zontar ; ;
Date:	4 Feb 2002
Journal:	Phys Rev Lett, 88 (5), 052001
Abstract:	The production of prompt J/psi, psi(2S), chi(c1), and chi(c2) is studied using a 32.4 fb(-1) data sample collected with the Belle detector at Upsilon(4S) and at 60 MeV below the resonance. The yield of prompt J/psi mesons in the Upsilon(4S) sample is compatible with that of continuum production; we set an upper limit B(Upsilon(4S)-->J/psiX) < 1.9 x 10(-4) at the 95% confidence level, and find sigma(e(+)e(-)-->J/psiX) = 1.47 plus/minus 0.10 plus/minus 0.13 pb. The cross sections for prompt psi(2S) and direct J/psi are measured. The J/psi momentum spectrum, production angle distribution, and polarization are studied.
Source:	PubMed, pmid11863715
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