Journal Article

Strangeness production in sNN = 3 GeV Au+Au collisions at RHIC

Ray, R. L., Huang, T., Zurek, M., Cai, X. Z., Ullrich, T., Shi, Y., Sumbera, M., Xiao, Z. G., Khanal, A., Liu, Z., Kiselev, A., Wang, J., Westfall, G. D., Dhamija, A., Hu, C., Bhosale, S. R., Knospe, A. G., Zhang, Z. J., Leung, Y. H., Pandey, A. K., Wang, Z., Pruthi, N. K., Putschke, J., Xu, N., Ghimire, N., Harabasz, S., Tamis, A. C., Chang, Z., Nie, M., Wieman, H., Yang, Y., Dale-Gau, G., Mi, K., Aggarwal, I., Sharma, S. R., Feng, C. J., Pawlik, B., Wang, Y., Nam, J. D., Chen, D., Zhang, S., Drachenberg, J. L., Mondal, B., Liu, L., Galatyuk, T., Schmitz, N., Luo, X. F., Perkins, C., Stefaniak, M., Bhatta, S., Bairathi, V., Seck, F-J., Kang, K., Luo, J., Li, C., Todoroki, T., Ko, H. S., Chatterjee, A., Liang, Y., Okubo, K., Matonoha, O., Jia, J., Zhu, X., Wilks, G., Crawford, H. J., Huang, S. L., Adams, J. R., Shen, D. Y., Kosarzewski, L. K., Chakaberia, I., Ljubicic, T., Pluta, J., Jacobs, W. W., Abdulhamid, M. I., Holub, L., Wissink, S. W., Wang, K., Voloshin, S. A., Adam, J., Ceska, J., Tu, Z., Li, D., Cebra, D., Hu, Q., Barish, K., Seto, R., Rosales Aguilar, M. A., Sun, C., He, Y., Robertson, C. W., Fazio, S., Niida, T., Xu, Z., Cheng, Y., Vanek, J., Shen, K., Zhang, D

2024

Overview

A bstract We report multi-differential measurements of strange hadron production ranging from mid- to target-rapidity in Au+Au collisions at a center-of-momentum energy per nucleon pair of s NN = 3 GeV with the STAR experiment at RHIC. K S 0 meson and Λ hyperon yields are measured via their weak decay channels. Collision centrality and rapidity dependences of the transverse momentum spectra and particle ratios are presented. Particle mass and centrality dependence of the average transverse momenta of Λ and K S 0 are compared with other strange particles, providing evidence of the development of hadronic rescattering in such collisions. The 4 π yields of each of these strange hadrons show a consistent centrality dependence. Discussions on radial flow, the strange hadron production mechanism, and properties of the medium created in such collisions are presented together with results from hadronic transport and thermal model calculations.

• Publisher: Springer Berlin Heidelberg,Springer Nature B.V
• Subject: Classical and Quantum Gravitation / Collaboration / Collisions / Data analysis / Elementary Particles / Energy / Gluons / Hadrons / Kinetic energy / Particle decay / Particle mass / Phase transitions / Physics / Physics and Astronomy / Quantum Field Theories / Quantum Field Theory / Quantum Physics / Quarks / Radial flow / Ratios / Regular Article - Experimental Physics / Relativistic Heavy Ion Collider / Relativity Theory / Strangeness / String Theory / Thermal analysis / Transverse momentum