Johan Bijnens
Professor, Deputy Head of Division
Leading logarithms for the nucleon mass
Author
Summary, in English
Within the heavy baryon chiral perturbation theory approach, we have studied the leading logarithm behavior of the nucleon mass up to four-loop order exactly and we present some results up to six-loop order as well as an all-order conjecture. The same methods allow to calculate the main logarithm multiplying the terms with fractional powers of the quark mass. We calculate thus the coefficients of m(2n+1) log((n-1)) (mu(2)/m(2)) and m(2n+2) log(n) (mu(2)/m(2)) with m the lowest-order pion mass. A side result is the leading divergence for a general heavy baryon loop integral. (C) 2014 The Authors. Published by Elsevier B.V.
Department/s
- Theoretical Particle Physics - Has been reorganised
Publishing year
2015
Language
English
Pages
700-719
Publication/Series
Nuclear Physics, Section B
Volume
891
Links
Document type
Journal article
Publisher
North-Holland
Topic
- Subatomic Physics
Status
Published
Project
- Postdoc Alexey Vladimirov
ISBN/ISSN/Other
- ISSN: 0550-3213