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26 April 2024

» pubmed » pmid12366036

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Observation of double cć production in e+e- annihilation at squareroot[s] approximately 10.6 GeV
K Abe ; K Abe ; R Abe ; T Abe ; I Adachi ; Byoung Sup Ahn ; H Aihara ; M Akatsu ; Y Asano ; T Aso ; V Aulchenko ; T Aushev ; A M Bakich ; Y Ban ; E Banas ; W Bartel ; A Bay ; P K Behera ; A Bondar ; A Bozek ; M Bracko ; J Brodzicka ; T E Browder ; B C K Casey ; P Chang ; Y Chao ; B G Cheon ; R Chistov ; S-K Choi ; Y Choi ; M Danilov ; L Y Dong ; J Dragic ; A Drutskoy ; S Eidelman ; V Eiges ; Y Enari ; C Fukunaga ; N Gabyshev ; A Garmash ; T Gershon ; A Gordon ; R Guo ; F Handa ; T Hara ; Y Harada ; N C Hastings ; H Hayashii ; M Hazumi ; E M Heenan ; I Higuchi ; T Higuchi ; T Hojo ; T Hokuue ; Y Hoshi ; K Hoshina ; S R Hou ; W-S Hou ; H-C Huang ; T Igaki ; Y Igarashi ; T Iijima ; K Inami ; A Ishikawa ; R Itoh ; M Iwamoto ; H Iwasaki ; Y Iwasaki ; H K Jang ; J Kaneko ; J H Kang ; J S Kang ; P Kapusta ; N Katayama ; H Kawai ; Y Kawakami ; 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 ; P Krokovny ; R Kulasiri ; S Kumar ; A Kuzmin ; Y-J Kwon ; J S Lange ; G Leder ; S H Lee ; J Li ; D Liventsev ; R-S Lu ; J MacNaughton ; G Majumder ; F Mandl ; S Matsumoto ; T Matsumoto ; H Miyake ; H Miyata ; G R Moloney ; T Mori ; T Nagamine ; Y Nagasaka ; E Nakano ; M Nakao ; J W Nam ; Z Natkaniec ; K Neichi ; S Nishida ; O Nitoh ; S Noguchi ; T Nozaki ; S Ogawa ; F Ohno ; T Ohshima ; T Okabe ; S Okuno ; S L Olsen ; Y Onuki ; W Ostrowicz ; H Ozaki ; P Pakhlov ; H Palka ; C W Park ; H Park ; K S Park ; L S Peak ; J-P Perroud ; M Peters ; L E Piilonen ; N Root ; H Sagawa ; S Saitoh ; Y Sakai ; M Satapathy ; A Satpathy ; O Schneider ; S Schrenk ; C Schwanda ; S Semenov ; K Senyo ; R Seuster ; M E Sevior ; H Shibuya ; V Sidorov ; J B Singh ; S Stanic ; M Staric ; A Sugi ; A Sugiyama ; K Sumisawa ; T Sumiyoshi ; K Suzuki ; S Suzuki ; S K Swain ; T Takahashi ; F Takasaki ; K Tamai ; N Tamura ; M Tanaka ; G N Taylor ; Y Teramoto ; S Tokuda ; T Tomura ; S N Tovey ; W Trischuk ; T Tsuboyama ; T Tsukamoto ; S Uehara ; K Ueno ; Y Unno ; S Uno ; S E Vahsen ; G Varner ; K E Varvell ; C C Wang ; C H Wang ; J G Wang ; M-Z Wang ; Y Watanabe ; E Won ; B D Yabsley ; Y Yamada ; A Yamaguchi ; Y Yamashita ; M Yamauchi ; H Yanai ; J Yashima ; Y Yuan ; Y Yusa ; Z P Zhang ; V Zhilich ; D Zontar ;
Date:	30 Sep 2002
Journal:	Phys Rev E, 89 (14), 142001
Abstract:	We report the observation of prompt J/psi via double cc; production from the e+e- continuum. In this process one cc; pair fragments into a J/psi meson while the remaining pair either produces a charmonium state or fragments into open charm. Both cases have been experimentally observed. We find cross sections of sigma[e+e- -->J/psieta(c)(gamma)]xB(eta(c)-->>or=4 charged)=(0.033(+0.007)(-0.006)+/-0.009) pb and sigma(e+e- -->J/psiD(*+)X)=(0.53(+0.19)(-0.15)+/-0.14) pb and infer sigma(e+e- -->J/psicc;)/sigma(e+e- -->J/psiX)=0.59(+0.15)(-0.13)+/-0.12. These results are obtained from a 46.2 fb(-1) data sample collected near the Upsilon(4S) resonance, with the Belle detector at the KEKB collider.
Source:	PubMed, pmid12366036
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