Hadron Mass Spectrum from Lattice QCD

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Title: Hadron Mass Spectrum from Lattice QCD
Creators: Majumder, Abhijit; Müller, Berndt
Issue Date: 2010-12-13
Publisher: American Physical Society
Citation: Abhijit Majumder and Berndt Müller, "Hadron Mass Spectrum from Lattice QCD," Physical Review Letters 105, no. 25 (2010), doi:10.1103/PhysRevLett.105.252002
DOI: 10.1103/PhysRevLett.105.252002
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 mass spectrum up to a temperature T=155  MeV. Using simple parametrizations of the hadron mass spectrum we show how one may estimate the total spectral weight in these yet undermined states.
ISSN: 1079-7114
URI: http://hdl.handle.net/1811/48514
Rights: ©2010 The American Physical Society
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