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Opis

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

Szczegóły książki

• Pełny tytuł: Analysis of low-mass dilepton enhancement
• Podtytuł: In 200 GeV Au+Au collisions
• Autor: Márton Vargyas
• Język: Angielski
• Oprawa: Miękka
• Liczba stron: 80
• EAN: 9783659242304
• ID: 07137582
• Wydawca: LAP Lambert Academic Publishing
• Waga: 141 g
• Wymiary: 220 × 150 × 5 mm
• Rok wydania: 2012

Ulubione w innej kategorii

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