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Analysis of low-mass dilepton enhancement


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  • Product Description

This book, an M.Sc. thesis in experimental nuclear physics, reports on a difficult and unresolved puzzle of relativistic heavy ion collisions: the enhanced production of low-mass lepton pairs in 200 GeV Au+Au collisions, as observed by the PHENIX experiment at Brookhaven National Laboratory's Relativistic Heavy Ion Collider. Two partial explanations are given: The first is a possible in-medium mass modification of the eta' mesons, a signal of a symmetry restoration in hot and dense hadronic matter, inspired by theoretical models and a recent indirect measurement. These in-medium modified eta' mesons leave behind a fingerprint, their enhanced production in vacuum, that lead to enhanced dilepton production via the Dalitz-decay of eta' -> (e+ e- photon). As the enhancement is restricted to the soft transverse momentum region of pT < 2 GeV, the second partial explanation considers a hydrodynamically motivated momentum distribution of directly produced mesons, instead of an earlier spectrum model, that neglected radial flow effects.

Product Specifications
SKU :COC49994
AuthorMárton Vargyas
Number of Pages80
Publishing Year2012-09-25T00:00:00.000
Edition1 st
Book TypePhysics
Country of ManufactureIndia
Product BrandLAP LAMBERT Academic Publishing
Product Packaging InfoBox
In The Box1 Piece
Product First Available On ClickOnCare.com2015-06-08 00:00:00
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