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arXiv · 1008.1747

Hadron Mass Spectrum from Lattice QCD

Abhijit Majumder·Berndt Müller
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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.

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Abhijit Majumder, Berndt Müller. 2010-08-17. Hadron Mass Spectrum from Lattice QCD. https://doi.org/10.1103/physrevlett.105.252002

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