Impact of in-medium on proton scattering amplitude at incident energies 12.7-1000 MeV

15 Sept 2025, 16:20
20m
LHEP-215/347 - комната семинаров (VBLHEP)

LHEP-215/347 - комната семинаров

VBLHEP

75
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20 min. Relativistic heavy ion collisions Relativistic heavy ion collisions

Speaker

Abdulmagead, Ibrahim (Joint Institute of Nuclear Research, Dubna, Russia)

Description

The effect of nuclear medium on proton-nucleus scattering amplitude is investigated by analyzing experimental differential cross sections of proton elastic scattering on $^{90}$Zr at a very wide range of incident energies from 12.7 to 1000 MeV using the microscopic model of proton–nucleus optical potential. This effect has a major impact on the proton-nucleon cross section, σ, the most physically significant parameter of the interaction potential. The in-medium parameter σ, which effectively replicated experimental data at low incident energies, is significantly smaller than the proton-nucleon cross section when they scatter in free space. At high incident energies, however, the two σ values are fairly similar to one another.

Authors

Abdulmagead, Ibrahim (Joint Institute of Nuclear Research, Dubna, Russia) Lukyanov, Konstantin (MLIT, JINR) Prof. Lukyanov, V. K. (Joint Institute of Nuclear Research, Dubna, Russia) Zemlyanaya, Elena (Joint Institute for Nuclear Research, Dubna, Russia)

Presentation materials