中国物理B ›› 2009, Vol. 18 ›› Issue (9): 3802-3809.doi: 10.1088/1674-1056/18/9/031

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Analysis of the decay B0→χclπ0 with light-cone QCD sum rules

王志刚   

  1. Department of Physics, North China Electric Power University, Baoding 071003, China
  • 收稿日期:2009-01-19 修回日期:2009-03-05 出版日期:2009-09-20 发布日期:2009-09-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10775051) and the Program for New Century Excellent Talents in University of China (Grant No NCET-07-0282).

Analysis of the decay $B^0 \to \chi_{c1}\pi^0$ with light-cone QCD sum rules

Wang Zhi-Gang(王志刚)†   

  1. Department of Physics, North China Electric Power University, Baoding 071003, China
  • Received:2009-01-19 Revised:2009-03-05 Online:2009-09-20 Published:2009-09-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10775051) and the Program for New Century Excellent Talents in University of China (Grant No NCET-07-0282).

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摘要： In this article, we calculate the contribution from the nonfactorizable soft hadronic matrix element to the decay $B^0 \to \chi_{c1}\pi^0$ with the light-cone quantum chromo-dynamic (QCD) sum rules. The numerical results show that its contribution is rather large and should not be neglected. The total amplitudes lead to a branching fraction which is in agreement with the experimental data marginally.

Abstract: In this article, we calculate the contribution from the nonfactorizable soft hadronic matrix element to the decay $B^0 \to \chi_{c1}\pi^0$ with the light-cone quantum chromo-dynamic (QCD) sum rules. The numerical results show that its contribution is rather large and should not be neglected. The total amplitudes lead to a branching fraction which is in agreement with the experimental data marginally.

Key words: light-cone QCD sum rule, B-decay, nonfactorizable hadronic matrix element

中图分类号:  (Decays of bottom mesons)

  • 13.25.Hw
11.55.Hx (Sum rules) 12.38.Bx (Perturbative calculations) 14.40.Nd (Bottom mesons (|B|>0))