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Bounds on Heavy-to-Heavy Baryonic Form Factors

High Energy Physics - Phenomenology 2016-08-25 v1
Authors: Cheng-Wei Chiang
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Abstract

Upper and lower bounds are established on the Lambda_b -> Lambda_c semileptonic decay form factors by utilizing inclusive heavy-quark-effective-theory sum rules. These bounds are calculated to leading order in Lambda_QCD/m_Q and alpha_s. The O(alpha_s^2 beta_0) corrections to the bounds at zero recoil are also presented. Several form factor models used in the literature are compared with our bounds.

Keywords

heavy-to-heavy baryonic form factors Lambda_b to Lambda_c semileptonic decay heavy quark effective theory sum rules bounds

Cite

@article{arxiv.hep-ph/9907557,
  title  = {Bounds on Heavy-to-Heavy Baryonic Form Factors},
  author = {Cheng-Wei Chiang},
  journal= {arXiv preprint arXiv:hep-ph/9907557},
  year   = {2016}
}

Comments

20 pages, 9 figures

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