Dielectron Mass Spectra in sqrt{s_{NN}} = 200 GeV Cu+Cu Collisions at PHENIX

dc.contributor.authorCampbell, Sarahen_US
dc.contributor.otherDepartment of Physicsen_US
dc.date.accessioned2012-05-17T12:20:06Z
dc.date.available2012-05-17T12:20:06Z
dc.date.issued1-Aug-11en_US
dc.date.submittedAug-11en_US
dc.description.abstractThe dielectron mass spectrum consists of light vector meson decays, correlated heavy quark contributions and decays from other hadronic and photonic sources. Thermal radiation and modifications to the light vector mesons may provide additional signals at low masses above known hadronic sources. The PHENIX sqrt{sNN} = 200 GeV Au+Au and Cu+Cu analyses have measured a centrality dependent excess in the the low mass region between 0.15 GeV/c^2 and 0.75 GeV/c^2. Between the phi and the J/psi, in the intermediate mass range, the correlated heavy quark decays are the primary dielectron source; direct photons may augment this region as well. The Cu+Cu system is sensitive to the onset of the dielectron excess. By studying the Cu+Cu mass spectra and yields as a function of pair transverse momentum and collision centrality we obtain further understanding of its behavior. Comparisons to the PHENIX Au+Au and p+p measurements an extrapolations from theory are presented.en_US
dc.description.advisorAdvisor(s): Thomas K. Hemmick. Committee Member(s): John Hobbs; Derek Teaney; Martin Purschke.en_US
dc.description.sponsorshipStony Brook University Libraries. SBU Graduate School in Department of Physics. Lawrence Martin (Dean of Graduate School).en_US
dc.formatElectronic Resourceen_US
dc.identifierCampbell_grad.sunysb_0771E_10587.pdfen_US
dc.identifier.urihttp://hdl.handle.net/1951/55965
dc.language.isoen_USen_US
dc.mimetypeApplication/PDFen_US
dc.publisherThe Graduate School, Stony Brook University: Stony Brook, NY.en_US
dc.subject.lcshPhysicsen_US
dc.subject.otherdielectron, heavy ion, mass, PHENIX, vector mesonsen_US
dc.titleDielectron Mass Spectra in sqrt{s_{NN}} = 200 GeV Cu+Cu Collisions at PHENIXen_US
dc.typeDissertationen_US
Files
Original bundle
Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
Campbell_grad.sunysb_0771E_10587.pdf
Size:
9.79 MB
Format:
Adobe Portable Document Format