Hadron Mass Spectrum from Lattice QCD
High Energy Physics - Phenomenology
2010-12-28 v2 High Energy Physics - Lattice
Nuclear Theory
Abstract
Finite temperature lattice simulations of quantum chromodynamics (QCD) are sensitive to the hadronic mass spectrum for temperatures below the "critical" temperature T_c ~ 160 MeV. We show that a recent precision determination of the QCD trace anomaly shows evidence for the existence of a large number of hadron states beyond those known from experiment. The lattice results are well represented by an exponentially growing hadron mass spectrum up to a temperature T = 155 MeV. Using simple parametrizations we show how one may estimate the total spectral weight in these yet undermined states.
Cite
@article{arxiv.1008.1747,
title = {Hadron Mass Spectrum from Lattice QCD},
author = {Abhijit Majumder and Berndt Müller},
journal= {arXiv preprint arXiv:1008.1747},
year = {2010}
}