Stringy Mass Squared Splittings Revisited
High Energy Physics - Phenomenology
2009-10-31 v1 High Energy Physics - Theory
Abstract
An empirically successful mass formula derived long ago from hadronic string models is not explained by symmetries of the QCD lagrangian. Consider that M(rho)^2-M(pi)^2 = M(K*)^2-M(K)^2 to a few percent accuracy. We derive this and other equal spacing relations using chiral symmetry and a novel Z_2 symmetry. We offer an interpretation of this Z_2 symmetry as a manifestation of chiral anomalies in a gauge theory with an intrinsic cutoff.
Cite
@article{arxiv.hep-ph/9802283,
title = {Stringy Mass Squared Splittings Revisited},
author = {Silas R. Beane},
journal= {arXiv preprint arXiv:hep-ph/9802283},
year = {2009}
}
Comments
22 pages TeX, 1 eps figure, uses mtexsis.tex