TY - JOUR
T1 - Effect of nuclear structure on particle production in relativistic heavy-ion collisions using a multiphase transport model
AU - Sinha, P.
AU - Bairathi, V.
AU - Gopal, K.
AU - Jena, C.
AU - Kabana, S.
N1 - Publisher Copyright:
© 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.
PY - 2023/8
Y1 - 2023/8
N2 - We report a study of transverse momentum (pT) spectra for π±, K±, p, and p¯ in isobar, Ru4496+Ru4496 and Zr4096+Zr4096, collisions at sNN=200GeV using a multiphase transport model. Particle yields (dN/dy), average transverse momenta ((pT)), and particle ratios are reported in various collision systems with different parametrizations of the Woods-Saxon distribution. We observed a maximum difference of 5% in the particle yields in peripheral collisions when we included a quadrupole and octupole deformation and a nuclear size difference between the isobars. The π-/π+ ratio is smaller in Ru+Ru collisions compared with Zr+Zr collisions indicating an effect of isospin due to difference in number of protons and neutrons between the two nuclei. The K-/K+ ratio is same in both the systems indicating the dominance of the pair production mechanism in the kaon production. The p¯/p ratio is further smaller in Ru+Ru collisions than Zr+Zr collisions, indicating the effect of baryon stopping in addition to the isospin effect. A system size dependence is observed in dN/dy and (pT) when we compare the results from isobar collisions with Au+Au and U+U collisions.
AB - We report a study of transverse momentum (pT) spectra for π±, K±, p, and p¯ in isobar, Ru4496+Ru4496 and Zr4096+Zr4096, collisions at sNN=200GeV using a multiphase transport model. Particle yields (dN/dy), average transverse momenta ((pT)), and particle ratios are reported in various collision systems with different parametrizations of the Woods-Saxon distribution. We observed a maximum difference of 5% in the particle yields in peripheral collisions when we included a quadrupole and octupole deformation and a nuclear size difference between the isobars. The π-/π+ ratio is smaller in Ru+Ru collisions compared with Zr+Zr collisions indicating an effect of isospin due to difference in number of protons and neutrons between the two nuclei. The K-/K+ ratio is same in both the systems indicating the dominance of the pair production mechanism in the kaon production. The p¯/p ratio is further smaller in Ru+Ru collisions than Zr+Zr collisions, indicating the effect of baryon stopping in addition to the isospin effect. A system size dependence is observed in dN/dy and (pT) when we compare the results from isobar collisions with Au+Au and U+U collisions.
UR - https://www.scopus.com/pages/publications/85172462952
U2 - 10.1103/PhysRevC.108.024911
DO - 10.1103/PhysRevC.108.024911
M3 - Article
AN - SCOPUS:85172462952
SN - 2469-9985
VL - 108
JO - Physical Review C
JF - Physical Review C
IS - 2
M1 - 024911
ER -