Perspectives of thermal photon measurements in heavy ion collisions at NICA
Petersburg Nuclear Physics Institute named by B.P. Konstantinov of NRC «Kurchatov Institute»,
mkr. Orlova roshcha 1,
Gatchina, Leningradskaya oblast
2 Peter the Great St.Petersburg Polytechnic University, Institute of Physics, Nanotechnology and Telecommunications, 195251 St.Petersburg, Polytechnicheskaya, 29, Russia
3 National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Kashirskoe highway 31, Moscow, 115409 Russia
* e-mail: firstname.lastname@example.org
Published online: 19 November 2019
The main goal of the future NICA-MPD experiment is studying the dense baryonic matter produced in heavy-ion collisions in the energy range 4-11 GeV and searching for signs of the phase transition between hadronic matter and deconfined quark-gluon plasma. Measurements of soft thermal photon yields and collective flow can significantly extend the physics program of the MPD experiment, allowing one to probe the temperature and the level of thermalizaion of the medium created in heavy ion collisions at NICA energies. The optimal method to measure soft photons is to register photon conversions in the material of the tracking system. In this contribution, recent RHIC and LHC results on thermal photon spectra and flow will be presented. Motivation and feasibility of thermal photon measurements with the conversion method in the projected MPD setup will be discussed.
© The Authors, published by EDP Sciences, 2019
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