Study of intermediate states in the inclusive semileptonic $B \rightarrow X_c l \nu$ decay structure function

G. Bailas; S. Hashimoto; T. Kaneko; J. Koponen

Study of intermediate states in the inclusive semileptonic $B \rightarrow X_c l \nu$ decay structure function

High Energy Physics - Lattice 2020-02-03 v1 High Energy Physics - Phenomenology

Authors: G. Bailas , S. Hashimoto , T. Kaneko , J. Koponen

Abstract

We analyze the inclusive semileptonic $B \to X_c \ell\nu$ structure functions in 2+1-flavor lattice QCD. The M\"obius domain-wall fermion action is used for light, strange, charm and bottom quarks. The structure function receives contributions from various exclusive modes, including the dominant S-wave states $D^{(*)}_s$ as well as the P-wave states $D_s^{**}$ . We can identify them in the lattice data, from which we put some constraints on the $B_s \to D_s^{**}\ell\nu$ form factors.

Keywords

inclusive semileptonic decay b meson structure function lattice qcd mobius domain-wall fermion exclusive modes form factors

Cite

@article{arxiv.2001.11678,
  title  = {Study of intermediate states in the inclusive semileptonic $B \rightarrow X_c l \nu$ decay structure function},
  author = {G. Bailas and S. Hashimoto and T. Kaneko and J. Koponen},
  journal= {arXiv preprint arXiv:2001.11678},
  year   = {2020}
}

Comments

7 pages, 3 figures, talk presented at the 37th International Symposium on Lattice Field Theory (Lattice2019), 16-22 June 2019, Wuhan, China

Study of intermediate states in the inclusive semileptonic $B \rightarrow X_c l \nu$ decay structure function

Abstract

Keywords

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