Seminario Física Teórica
June 12th 2003 -Thursday-, 11,00.
"Composite ensembles and the critical endpoints of lattice QCD at finite baryon densities"
It was recently proposed to recover QCD for a fixed abelian charge by summing over all possible projections for the generating function with respect to the characters: this determination relates directly to the pathology of reweighting at nonzero baryon densities. By relating the functional Boltzmann factors for the lattice to a Cauchy-distributed probability density function we quantify the reliability of the reweighting approach and thus similarly combine multiple lattice ensembles to identify fluctuation driven critical phenomena delineated in QCD by a critical endpoint.
Seminario de Física Teórica, Facultad de Ciencias, 3rd Floor, Universidad de Zaragoza