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Chinese Physics C> 2003, Vol. 27> Issue(8) : 678-682 

B→KK Decays with the Soft-Gluon Corrections

  •  Institute of High Energy Physics,CAS, Beijing 100039,China2 Department of Physics, Nankai University,Tianjin 300071 .China

  • We analyze the B→KK decays with the soft-gluon corrections by using the QCD light-cone sum rules(LCSR) .Although one can calculate the leading order factorization parts and the radiative corrections from hard-gluon exchanges at a, order in QCD factorization approach,it is worthwhile to estimate the nonfactorizable soft-gluon contributions from all the tree and penguin diagrams systematically. Our results show that the soft-gluon effects always decrease the branching ratios and give a few percentage corrections at most in the B→KK decays.
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    [1] Khodjamirian A.Nucl. Phys., 2001, B 605:558 2 Beneke M, Buchalla G, Neubert M et al. Phys. Rev. Letter., 1999, B 83:1914;Nucl. Phys.,2000,B 591:313 3 WU Xiang-Yao, LI Zuo-Hong, CUI Jian-Ying. Chin. Phys. Lett., 2002,11: 1596 4 Buchalla G, Buras A J, Lautenbacher M E. Rev. Mod. Phys., 1996,68: 11255 Ball P. JHEP, 1998, 9809: 0056 HUANG Tao, LI Zuo-Hong, WU Xiang-Yao. Phys. Rev., 2001, D 63: 0940O1 7 ZHANG Dong,XIAO Zhen-Jun, LI Chong-Sheng. Phys. Rev., 2001, D64:014014 8 Beneke M, Buchalla G, Neubert M. et al. Nucl. Phys., 2001, B 606:245; Ali A, Kramer G, Lu C D. Phys. Rev., 1998, D 58 : 094009

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LI Lin, WU Xiang-Yao and HUANG Tao. B→KK Decays with the Soft-Gluon Corrections[J]. Chinese Physics C, 2003, 27(8): 678-682.
LI Lin, WU Xiang-Yao and HUANG Tao. B→KK Decays with the Soft-Gluon Corrections[J]. Chinese Physics C, 2003, 27(8): 678-682. shu
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Received: 2002-12-17
Revised: 1900-01-01
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B→KK Decays with the Soft-Gluon Corrections

    Corresponding author: LI Lin,
  • Institute of High Energy Physics,CAS, Beijing 100039,China2 Department of Physics, Nankai University,Tianjin 300071 .China
  • Received Date: 2002-12-17
  • Accepted Date: 1900-01-01
  • Available Online: 2003-08-05

Abstract: We analyze the B→KK decays with the soft-gluon corrections by using the QCD light-cone sum rules(LCSR) .Although one can calculate the leading order factorization parts and the radiative corrections from hard-gluon exchanges at a, order in QCD factorization approach,it is worthwhile to estimate the nonfactorizable soft-gluon contributions from all the tree and penguin diagrams systematically. Our results show that the soft-gluon effects always decrease the branching ratios and give a few percentage corrections at most in the B→KK decays.

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