Lambda b -> p, Lambda transition form factors from QCD light-cone sum rules

@article{Wang2009LambdaB,
  title={Lambda b -> p, Lambda transition form factors from QCD light-cone sum rules},
  author={Yu-ming Wang and Yue Shen and Cai-dian Lu},
  journal={Physical Review D},
  year={2009},
  volume={80},
  pages={074012}
}
Light-cone sum rules for the Lambda(b) -> p, Lambda transition form factors are derived from the correlation functions expanded by the twist of the distribution amplitudes of the Lambda(b) baryon. In terms of the Lambda(b) three-quark distribution amplitude models constrained by the QCD theory, we calculate the form factors at small momentum transfers and compare the results with those estimated in the conventional light-cone sum rules (LCSR) and perturbative QCD approaches. Our results… Expand
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