### Understanding Dilepton Production in Heavy Ion Collisions by Vector Mesons of Different VarietiesUnderstanding Dilepton Production in Heavy Ion Collisions by Vector Mesons of Different Varieties

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 Author Brown, Gerald E. ♦ Holt, Jeremy W. ♦ Rho, Mannque Source arXiv.org Content type Text File Format PDF Date of Submission 2008-08-17 Language English
 Subject Domain (in DDC) Computer science, information & general works ♦ Natural sciences & mathematics ♦ Physics Subject Keyword Nuclear Theory ♦ High Energy Physics - Phenomenology ♦ Nuclear Experiment ♦ physics:hep-ph ♦ physics:nucl-ex ♦ physics:nucl-th Abstract A simple schematic model anchored on the notion of hadronic freedom inferred from hidden local symmetry in the vector manifestation, the infinite tower of vector mesons in holographic QCD and "stickiness" of $\pi\pi$ interactions inferred from dispersion relations is used to describe the dileptons produced in relativistic heavy ion collisions at PHENIX/RHIC. It is shown that due to the near "blindness" of dileptons to Brown-Rho scaling, those dileptons with invariant mass less than $m_\rho=770$ MeV come mostly from pion-composites that we interpret as "transient $\rho$'s." Educational Use Research Learning Resource Type Article Page Count 4