Heavy quark expansion parameters from lattice NRQCD

JLQCD Collaboration; N. Tsutsui; S. Aoki; R. Burkhalter; M. Fukugita; S. Hashimoto; K-I. Ishikawa; N. Ishizuka; Y. Iwasaki; K. Kanaya; T. Kaneko; Y. Kuramashi; M. Okawa; T. Onogi; S. Tominaga; A. Ukawa; N. Yamada; T. Yoshié

arXiv · hep-lat/0110178

Heavy quark expansion parameters from lattice NRQCD

JLQCD Collaboration·N. Tsutsui·S. Aoki·R. Burkhalter·M. Fukugita·S. Hashimoto·K-I. Ishikawa·N. Ishizuka·Y. Iwasaki·K. Kanaya·T. Kaneko·Y. Kuramashi·M. Okawa·T. Onogi·S. Tominaga·A. Ukawa·N. Yamada·T. Yoshié

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Abstract

Using the lattice NRQCD action for heavy quark, we calculate the heavy quark expansion parameters $μ_π^2$ and $μ_G^2$ for heavy-light mesons and heavy-light-light baryons. The results are compared with the mass differences among heavy hadrons to test the validity of HQET relations on the lattice.

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JLQCD Collaboration, N. Tsutsui, S. Aoki, R. Burkhalter, M. Fukugita, S. Hashimoto, K-I. Ishikawa, N. Ishizuka, Y. Iwasaki, K. Kanaya, T. Kaneko, Y. Kuramashi, M. Okawa, T. Onogi, S. Tominaga, A. Ukawa, N. Yamada, T. Yoshié. 2001-10-22. Heavy quark expansion parameters from lattice NRQCD. https://arxiv.org/abs/hep-lat/0110178

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