Revisiting Uraltsev's BPS limit for Heavy Quarks
High Energy Physics - Phenomenology
2016-09-09 v2
Abstract
Motivated by the recent experimental data of the values of the Heavy Quark Expansion parameters, in particular the spin-orbit and Darwin terms, we argue that nature actually may be close to a limit of QCD which has been suggested by Uraltsev more than ten years ago. Assuming that this limit is not accidental, we derive the relations among the Heavy Quark Expansion parameters that occur up to the order 1/mb^5.
Keywords
Cite
@article{arxiv.1609.01334,
title = {Revisiting Uraltsev's BPS limit for Heavy Quarks},
author = {Johannes Heinonen and Thomas Mannel},
journal= {arXiv preprint arXiv:1609.01334},
year = {2016}
}
Comments
13 pages, v2: forgotten draft note deleted