Idioma:

Thermal photon measurements at PHENIX

Esha, Roli

arXiv.org, 2023-09

Texto completo disponível

Citações Citado por

Título:
Thermal photon measurements at PHENIX
Autor: Esha, Roli
Assuntos: Anisotropy ; Beams (radiation) ; Heavy ions ; Ionic collisions ; Photons ; Physics - Nuclear Experiment ; Relativistic Heavy Ion Collider
É parte de: arXiv.org, 2023-09
Descrição: Photons are emitted at all stages of relativistic heavy-ion collisions and do not interact with the medium strongly. With access to the versatility of RHIC, measurements of low momentum direct photons are made possible across different system size and beam energies. An excess of direct photons, above prompt photon production from hard scattering processes, is observed for a system size corresponding to \(dN_{ch}/d\eta\) of 20-30, with a large azimuthal anisotropy and a characteristic dependence on collision centrality. After subtracting the prompt photon component, the inverse slope of the spectrum is continuously increasing with the effective temperature ranging from 250 MeV/c at \(p_{T}\) of 1-2 GeV/c to about 400 MeV/c at 2-4 GeV/c. Within the experimental uncertainty, there is no indication of a system size dependence of the inverse slope. In this proceeding, results from Au+Au collisions from the PHENIX experiment will be presented.
Editor: Ithaca: Cornell University Library, arXiv.org
Idioma: Inglês

Links

Voltar para lista de resultados