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  • Collision-energy dependence...
    Aggarwal, I.; Bellwied, R.; Bhasin, A.; Bhatta, S.; Bhosale, S.R.; Brandenburg, J.D.; Cebra, D.; Ceska, J.; Chakaberia, I.; Chaloupka, P.; Chen, J.; Cheng, Y.; Das, A.; Esumi, S.; Ghimire, N.; Han, Y.; Harris, J.W.; Harrison-Smith, H.; He, X.H.; Herrmann, N.; Hu, C.; Jalotra, A.; Jia, J.; Jin, C.; Kabana, S.; Kang, K.; Kapukchyan, D.; Kiselev, A.; Ko, H.S.; Lacey, R.; Lebedev, A.; Lee, J.H.; Li, D.; Li, H-S.; Li, W.; Liang, Y.; Licenik, R.; Liu, C.; Liu, G.; Liu, H.; Liu, X.; Ljubicic, T.; Luo, J.; Ma, Y.G.; Manikandhan, R.; Margetis, S.; Markert, C.; Mezhanska, O.; Mioduszewski, S.; Nain, A.S.; Nam, J.D.; Neff, D.; Nelson, J.M.; Nemes, D.B.; Nie, M.; Odyniec, G.; Oh, S.; Pak, R.; Pal, S.; Pandav, A.; Pani, T.; Pawlowska, D.; Perkins, C.; Pruthi, N.K.; Przybycien, M.; Racz, C.; Ray, R.L.; Robertson, C.W.; Roy Chowdhury, P.; Sato, S.; Shah, N.; Shanmuganathan, P.V.; Shen, D.; Shou, Q.Y.; Smirnov, N.; Song, Y.; Stewart, D.J.; Suaide, A.A.P.; Sun, Y.; Tamis, A.C.; Tlusty, D.; Truhlar, T.; Ullrich, T.; Upsal, I.; Van Buren, G.; Wang, J.; Wang, Y.; Wang, Y.; Wielanek, D.; Wu, J.; Xi, B.; Xie, G.; Xie, W.; Xu, Z.; Yu, Y.; Zhang, X.; Zhang, Z.J.; Zhang, Z.; Zhao, M.; Zyzak, M.

    Physics letters. B, August 2024, 2024-08-00, 2024-08-01, Letnik: 855
    Journal Article

    We report the first measurements of cumulants, up to 4th order, of deuteron number distributions and proton-deuteron correlations in Au+Au collisions recorded by the STAR experiment in phase-I of Beam Energy Scan (BES) program at the Relativistic Heavy Ion Collider. Deuteron cumulants, their ratios, and proton-deuteron mixed cumulants are presented for different collision centralities covering a range of center-of-mass energy per nucleon pair sNN=7.7 to 200 GeV. It is found that the cumulant ratios at lower collision energies favor a canonical ensemble over a grand canonical ensemble in thermal models. An anti-correlation between proton and deuteron multiplicity is observed across all collision energies and centralities, consistent with the expectation from global baryon number conservation. The UrQMD model coupled with a phase-space coalescence mechanism qualitatively reproduces the collision-energy dependence of cumulant ratios and proton-deuteron correlations.