Transverse momentum distribution and elliptic flow of charged hadrons in $$U+U$$ U+U collisions at $$\sqrt{s_{NN}}=193$$ sNN=193 GeV using HYDJET++

• Main Authors: Arpit Singh, P. K. Srivastava, O. S. K. Chaturvedi, S. Ahmad, B. K. Singh
• Format: Article
• Language: English
• Published: SpringerOpen 2018-05-01
• Series: European Physical Journal C: Particles and Fields
• Online Access: http://link.springer.com/article/10.1140/epjc/s10052-018-5908-8
• ISSN: 1434-6044; 1434-6052

Abstract Recent experimental observations of the charged hadron properties in $$U+U$$ U+U collisions at 193 GeV contradict many of the theoretical models of particle production including two-component Monte Carlo Glauber model. The experimental results show a small correlation between the charged hadron properties and the initial geometrical configurations (e.g. body–body, tip–tip etc.) of $$U+U$$ U+U collisions. In this article, we have modified the Monte Carlo HYDJET++ model to study the charged hadron production in $$U+U$$ U+U collisions at 193 GeV center-of-mass energy in tip–tip and body–body initial configurations. We have modified the hard as well as soft production processes to make this model suitable for $$U+U$$ U+U collisions. We have calculated the pseudorapidity distribution, transverse momentum distribution and elliptic flow distribution of charged hadrons with different control parameters in various geometrical configurations possible for $$U+U$$ U+U collision. We find that HYDJET++ model supports a small correlation between the various properties of charged hadrons and the initial geometrical configurations of $$U+U$$ U+U collision. Further, the results obtained in modified HYDJET++ model regarding $$dn_{ch}/d\eta $$ dnch/dη and elliptic flow ($$v_{2}$$ v2 ) suitably matches with the experimental data of $$U+U$$ U+U collisions in minimum bias configuration.