Stopping of protons in pA collisions at SPS and NICA energies in analytical hydrodynamic model and in SMASH event generator

Результат исследований: Научные публикации в периодических изданияхстатья в журнале по материалам конференциирецензирование

Аннотация

Our study is motivated by the first experimental results on pion production and stopping obtained in pA collisions in E910 experiment at BNL. The effect of stopping is the deceleration of an incident high energy proton traversing the target nucleus. It appears due to the energy losses relevant to the production of secondary particles in the inelastic interactions with nucleons. A hydrodynamic effective model of stopping is proposed that is based on the consideration of the nuclear matter as a liquid and by the introduction of an effective stopping force acting on a fast-moving proton. With this force, we obtain a differential equation that describes the relativistic motion of a proton in a nucleus. Calculations in the framework of this analytical model are performed for the correlation between the mean multiplicity of charged pions and a number of binary collisions.

Язык оригиналаанглийский
Номер статьи012135
ЖурналJournal of Physics: Conference Series
Том1690
Номер выпуска1
DOI
СостояниеОпубликовано - 16 дек 2020
Событие5th International Conference on Particle Physics and Astrophysics, ICPPA 2020 - Moscow, Virtual, Российская Федерация
Продолжительность: 5 окт 20209 окт 2020

Предметные области Scopus

  • Физика и астрономия (все)

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