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arXiv · 2208.00653

Pion, kaon, and (anti-)proton production in U+U Collisions at $\sqrt{s_{NN}}$ = 193 GeV measured with the STAR detector

STAR Collaboration·M. S. Abdallah·B. E. Aboona·J. Adam·J. R. Adams·J. K. Adkins·G. Agakishiev·I. Aggarwal·M. M. Aggarwal·Z. Ahammed·A. Aitbaev·I. Alekseev·D. M. Anderson·A. Aparin·J. Atchison·G. S. Averichev·V. Bairathi·W. Baker·J. G. Ball Cap·K. Barish·P. Bhagat·A. Bhasin·S. Bhatta·I. G. Bordyuzhin·J. D. Brandenburg·A. V. Brandin·X. Z. Cai·H. Caines·M. Calderón de la Barca Sánchez·D. Cebra·I. Chakaberia·B. K. Chan·Z. Chang·S. Chattopadhyay·D. Chen·J. Chen·J. H. Chen·X. Chen·Z. Chen·J. Cheng·S. Choudhury·W. Christie·X. Chu·H. J. Crawford·M. Daugherity·T. G. Dedovich·I. M. Deppner·A. A. Derevschikov·A. Dhamija·L. Di Carlo·L. Didenko·P. Dixit·X. Dong·J. L. Drachenberg·E. Duckworth·J. C. Dunlop·J. Engelage·G. Eppley·S. Esumi·O. Evdokimov·A. Ewigleben·O. Eyser·R. Fatemi·F. M. Fawzi·S. Fazio·C. J. Feng·Y. Feng·E. Finch·Y. Fisyak·A. Francisco·C. Fu·F. Geurts·N. Ghimire·A. Gibson·K. Gopal·X. Gou·D. Grosnick·A. Gupta·A. Hamed·Y. Han·M. D. Harasty·J. W. Harris·H. Harrison·S. He·W. He·X. H. He·Y. He·S. Heppelmann·E. Hoffman·C. Hu·Q. Hu·Y. Hu·H. Huang·H. Z. Huang·S. L. Huang·T. Huang·X. Huang·Y. Huang·T. J. Humanic·D. Isenhower
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Abstract

We present the first measurements of transverse momentum spectra of $\pi^{\pm}$, $K^{\pm}$, $p(\bar{p})$ at midrapidity ($|y| < 0.1$) in U+U collisions at $\sqrt{s_{NN}}$ = 193 GeV with the STAR detector at the Relativistic Heavy Ion Collider (RHIC). The centrality dependence of particle yields, average transverse momenta, particle ratios and kinetic freeze-out parameters are discussed. The results are compared with the published results from Au+Au collisions at $\sqrt{s_{NN}} =$ 200 GeV in STAR. The results are also compared to those from A Multi Phase Transport (AMPT) model.

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STAR Collaboration, M. S. Abdallah, B. E. Aboona, J. Adam, J. R. Adams, J. K. Adkins, G. Agakishiev, I. Aggarwal, M. M. Aggarwal, Z. Ahammed, A. Aitbaev, I. Alekseev, D. M. Anderson, A. Aparin, J. Atchison, G. S. Averichev, V. Bairathi, W. Baker, J. G. Ball Cap, K. Barish, P. Bhagat, A. Bhasin, S. Bhatta, I. G. Bordyuzhin, J. D. Brandenburg, A. V. Brandin, X. Z. Cai, H. Caines, M. Calderón de la Barca Sánchez, D. Cebra, I. Chakaberia, B. K. Chan, Z. Chang, S. Chattopadhyay, D. Chen, J. Chen, J. H. Chen, X. Chen, Z. Chen, J. Cheng, S. Choudhury, W. Christie, X. Chu, H. J. Crawford, M. Daugherity, T. G. Dedovich, I. M. Deppner, A. A. Derevschikov, A. Dhamija, L. Di Carlo, L. Didenko, P. Dixit, X. Dong, J. L. Drachenberg, E. Duckworth, J. C. Dunlop, J. Engelage, G. Eppley, S. Esumi, O. Evdokimov, A. Ewigleben, O. Eyser, R. Fatemi, F. M. Fawzi, S. Fazio, C. J. Feng, Y. Feng, E. Finch, Y. Fisyak, A. Francisco, C. Fu, F. Geurts, N. Ghimire, A. Gibson, K. Gopal, X. Gou, D. Grosnick, A. Gupta, A. Hamed, Y. Han, M. D. Harasty, J. W. Harris, H. Harrison, S. He, W. He, X. H. He, Y. He, S. Heppelmann, E. Hoffman, C. Hu, Q. Hu, Y. Hu, H. Huang, H. Z. Huang, S. L. Huang, T. Huang, X. Huang, Y. Huang, T. J. Humanic, D. Isenhower. 2022-08-01. Pion, kaon, and (anti-)proton production in U+U Collisions at $\sqrt{s_{NN}}$ = 193 GeV measured with the STAR detector. https://doi.org/10.1103/physrevc.107.024901

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