English

Zero-Recoil Sum Rules for $\Lambda_b \to \Lambda_c$ Form Factors

High Energy Physics - Phenomenology 2015-10-21 v1 High Energy Physics - Lattice

Abstract

We set up a zero recoil sum rule to constrain the form factors of the ΛbΛc\Lambda_b \to \Lambda_c transition. Our results are compared with the recent lattice calculation for these transitions. We find the same situation as in the case for BDB \to D^*: The lattice results practically saturate the sum rules, leaving basically no room for excited states.

Cite

@article{arxiv.1506.08780,
  title  = {Zero-Recoil Sum Rules for $\Lambda_b \to \Lambda_c$ Form Factors},
  author = {Thomas Mannel and Danny van Dyk},
  journal= {arXiv preprint arXiv:1506.08780},
  year   = {2015}
}

Comments

8 pages, 5 figures

R2 v1 2026-06-22T10:02:26.697Z