Inclusive B decay calculations with analytic continuation

Shoji Hashimoto; Brian Colquhoun; Taku Izubuchi; Takashi Kaneko; Hiroshi Ohki

doi:10.1051/epjconf/201817513006

EPJ

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Proceedings

Open Access

EPJ Web of Conferences 175, 13006 (2018)
https://doi.org/10.1051/epjconf/201817513006

Inclusive B decay calculations with analytic continuation

Shoji Hashimoto¹^,2^*, Brian Colquhoun¹, Taku Izubuchi³, Takashi Kaneko¹^,2 and Hiroshi Ohki⁴

¹ High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
² SOKENDAI (Graduate University for Advanced Studies), Tsukuba 305-0801, Japan
³ Brookhaven National Laboratory, Upton, NY, 11973, USA
⁴ Department of Physics, Nara Women’s University, Nara 630-8506, Japan

^* Speaker, e-mail: shoji.hashimoto@kek.jp

Published online: 26 March 2018

Abstract

First-principle lattice calculation of inclusive B meson semileptonic decays is possible for a certain class of moments that is connected to the structure function at unphysical kinematics by analytic continuation. We present an exploratory lattice calculation and a comparison with the heavy quark expansion technique.

© The Authors, published by EDP Sciences, 2018

This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).