Thermal dielectron measurements in Au+Au collisions at $\sqrt{s_{NN}}=$14.6, and 19.6 GeV with the STAR experiment

dc.contributor.advisorGeurts, Franken_US
dc.creatorHan, Yidingen_US
dc.date.accessioned2024-05-21T21:08:44Zen_US
dc.date.available2024-05-21T21:08:44Zen_US
dc.date.created2024-05en_US
dc.date.issued2024-04-15en_US
dc.date.submittedMay 2024en_US
dc.date.updated2024-05-21T21:08:44Zen_US
dc.description.abstractDielectrons emitted during the evolution of the hot and dense QCD medium created in relativistic heavy-ion collisions offer an effective way to probe the medium properties, as they do not interact via the strong force. The rate of the dielectron emission is proportional to the medium's electromagnetic spectral function. In the dielectron invariant mass range from $400$ MeV/$c^{2}$ to $800$ MeV/$c^{2}$, the spectral function probes the in-medium $\rho$ meson propagator which is sensitive to the medium’s properties including the total baryon density and the temperature. Meanwhile, the low energy range of the spectral function provides information about the medium’s electrical conductivity. Therefore, by measuring thermal dielectron production, we can study the microscopic interactions between the electromagnetic current and the medium. The STAR experiment has recorded large datasets of Au+Au collisions during the Beam Energy Scan Phase-II (BES-II) program, spanning center-of-mass energies between $\sqrt{s_{NN}}=$ 3.0 and 19.6 GeV with detector upgrades that benefit the dielectron measurement via extended transverse momentum and rapidity coverages as well as enhanced particle identification capability. In this thesis, I will report on the measurements of thermal dielectrons produced in Au+Au collisions at $\sqrt{s_{\text{NN}}}=$ 14.6, and 19.6 GeV using the STAR experiment.en_US
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationHan, Yiding. Thermal dielectron measurements in Au+Au collisions at $\sqrt{s_{NN}}=$14.6, and 19.6 GeV with the STAR experiment. (2024). PhD diss., Rice University. https://hdl.handle.net/1911/116095en_US
dc.identifier.urihttps://hdl.handle.net/1911/116095en_US
dc.language.isoengen_US
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.en_US
dc.subjectThermal radiationen_US
dc.subjectHeavy Ion Experimenten_US
dc.subjectNuclear Physicsen_US
dc.titleThermal dielectron measurements in Au+Au collisions at $\sqrt{s_{NN}}=$14.6, and 19.6 GeV with the STAR experimenten_US
dc.typeThesisen_US
dc.type.materialTexten_US
thesis.degree.departmentPhysics and Astronomyen_US
thesis.degree.disciplineNatural Sciencesen_US
thesis.degree.grantorRice Universityen_US
thesis.degree.levelDoctoralen_US
thesis.degree.nameDoctor of Philosophyen_US
Files
Original bundle
Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
HAN-DOCUMENT-2024.pdf
Size:
41.69 MB
Format:
Adobe Portable Document Format
License bundle
Now showing 1 - 2 of 2
No Thumbnail Available
Name:
PROQUEST_LICENSE.txt
Size:
5.84 KB
Format:
Plain Text
Description:
No Thumbnail Available
Name:
LICENSE.txt
Size:
2.98 KB
Format:
Plain Text
Description: