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Electromagnetic dissociation of $^{197}$Au at NICA

U. A. Dmitrieva$^{1,2}$

Memoirs of the Faculty of Physics 2019. N 4.

  • Article
Annotation

Collisions of $^{197}$Au nuclei with center-of-mass energy $\sqrt{s_ {NN}}$ from 4 to 11 GeV will be studied by means of the MPD (MultiPurpose Detector) at the NICA collider, which is presently under construction. The MPD experiment is focused on high-density strongly interacting nuclear matter created in the region of overlap of colliding nuclei. However, there are no publications that quantitatively characterize the long-range impact of the Coulomb fields of nuclei on collision partners in the so-called ultraperipheral collisions at NICA with impact parameters exceeding the sum of the nuclear radii. In this paper, the total cross sections of electromagnetic dissociation (EMD), multiplicities of secondary particles and the production cross sections of secondary nuclei resulting from ultraperipheral collisions of $^{197}$ Au nuclei at NICA are calculated by means of RELDIS (Relativistic ELectromagnetic DISsociation) model. The obtained results can be used to assess the impact of secondary particles and nuclei on the collider components.

Received: 2019 June 18
Approved: 2019 October 16
PACS:
25.75.-q Relativistic heavy-ion collisions
25.70.De Coulomb excitation
25.20.-x Photonuclear reactions
Authors
U. A. Dmitrieva$^{1,2}$
$^1$Moscow institute of physics and technology\
$^2$Institute for Nuclear Research RAS
Issue 4, 2019

Moscow University Physics Bulletin

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