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4 papers · 1 filter
Electromagnetic splittings of hadrons from improved staggered quarks in full QCD
S. Basak, A. Bazavov, C. Bernard +10
We present our initial study of the electromagnetic splittings of charged and neutral mesons, and the violation of Dashen's theorem. Hadron masses are calculated on MILC N_f=2+1 QC…
Statistical QCD with non-positive measure
J. C. Osborn, K. Splittorff, J. J. M. Verbaarschot
In this talk we discuss the microscopic limit of QCD at nonzero chemical potential. In this domain, where the QCD partition function is under complete analytical control, we uncove…
Phase Diagram of the Dirac Spectrum at Nonzero Chemical Potential
J. C. Osborn, K. Splittorff, J. J. M. Verbaarschot
The Dirac spectrum of QCD with dynamical fermions at nonzero chemical potential is characterized by three regions, a region with a constant eigenvalue density, a region where the e…
Chiral Condensate at Nonzero Chemical Potential in the Microscopic Limit of QCD
J. C. Osborn, K. Splittorff, J. J. M. Verbaarschot
The chiral condensate in QCD at zero temperature does not depend on the quark chemical potential (up to one third the nucleon mass), whereas the spectral density of the Dirac opera…