International Conference Physics.SPb/2024

On the question of the detection of new particles – possible candidates for the role of dark matter particles

M. V. Arkhipov^a, A. T. D'yachenko<sup>ab

a</sup> Emperor Alexander I St. Petersburg State Transport University, St. Petersburg, Russia
^b The Petersburg Nuclear Physics Institute, The National Research Center "Kurchatov Institute", Gatchina, Russia

Abstract: It is proposed to improve the agreement with experimental data in comparison with the previous works of the spectrum of soft photons in terms of transverse momentum in pp collisions with an incident proton momentum of 450 GeV/$c$ in order to clearly isolate the signal about the detection of the $X$17 boson. An interpretation has been proposed for the detection of a boson with a mass of 38 MeV in the spectra of photons emitted in reactions of protons with carbon nuclei at an incident proton momentum of 5.5 GeV/c.

Keywords: X17 and X38 bosons, collisions of protons and nuclei, soft photons, thermodynamic model.

Received: 24.04.2024
Revised: 03.09.2024
Accepted: 30.10.2024

DOI: 10.61011/PJTF.2024.23.59390.6376k

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