Prospects for Photon Conversion Measurements in the Future MPD Experiment at NICA

The future MPD experiment at the NICA collider is aimed to study hot and dense matter created in heavy-ion collisions at center-of-mass energies of 4 to 11 GeV. Measurements of photon spectra via reconstruction of electron–positron pairs from photon conversions provide a unique opportunity to probe...

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Bibliographic Details
Published in:	Physics of particles and nuclei Vol. 54; no. 4; pp. 613 - 618
Main Authors:	Kryshen, E., Burmasov, N., Ivanishchev, D., Kotov, D., Malaev, M., Riabov, V., Ryabov, Yu
Format:	Journal Article
Language:	English
Published:	Moscow Pleiades Publishing 01-08-2023
Subjects:	Particle and Nuclear Physics Physics Physics and Astronomy
Online Access:	Get full text
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Summary:	The future MPD experiment at the NICA collider is aimed to study hot and dense matter created in heavy-ion collisions at center-of-mass energies of 4 to 11 GeV. Measurements of photon spectra via reconstruction of electron–positron pairs from photon conversions provide a unique opportunity to probe the temperature of the produced medium and study π 0 - and -meson yields down to low transverse momenta. In this work, feasibility of photon conversion measurements in the MPD experiment is discussed. A proposal to increase the photon conversion probability using a dedicated retractable converter is presented, and prospects for probing the material budget of the experiment using converted photons are evaluated.
ISSN:	1063-7796 1531-8559
DOI:	10.1134/S1063779623040226