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Collision-energy dependence of deuteron cumulants and proton-deuteron correlations in Au+Au collisions at RHIC

Publication ,  Journal Article
Abdulhamid, MI; Aboona, BE; Adam, J; Adamczyk, L; Adams, JR; Aggarwal, I; Aggarwal, MM; Ahammed, Z; Aschenauer, EC; Aslam, S; Atchison, J ...
Published in: Physics Letters Section B Nuclear Elementary Particle and High Energy Physics
August 1, 2024
Published version (DOI)

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.

Duke Scholars

Seog Oh
Author Seog Oh Physics

Published In

Physics Letters Section B Nuclear Elementary Particle and High Energy Physics

DOI

10.1016/j.physletb.2024.138560

ISSN

0370-2693

Publication Date

August 1, 2024

Volume

855

Related Subject Headings

  • Nuclear & Particles Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences
  • 0105 Mathematical Physics
 

Citation

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Abdulhamid, M. I., Aboona, B. E., Adam, J., Adamczyk, L., Adams, J. R., Aggarwal, I., … Jacobs, W. W. (2024). Collision-energy dependence of deuteron cumulants and proton-deuteron correlations in Au+Au collisions at RHIC. Physics Letters Section B Nuclear Elementary Particle and High Energy Physics, 855. https://doi.org/10.1016/j.physletb.2024.138560
Abdulhamid, M. I., B. E. Aboona, J. Adam, L. Adamczyk, J. R. Adams, I. Aggarwal, M. M. Aggarwal, et al. “Collision-energy dependence of deuteron cumulants and proton-deuteron correlations in Au+Au collisions at RHIC.” Physics Letters Section B Nuclear Elementary Particle and High Energy Physics 855 (August 1, 2024). https://doi.org/10.1016/j.physletb.2024.138560.
Abdulhamid MI, Aboona BE, Adam J, Adamczyk L, Adams JR, Aggarwal I, et al. Collision-energy dependence of deuteron cumulants and proton-deuteron correlations in Au+Au collisions at RHIC. Physics Letters Section B Nuclear Elementary Particle and High Energy Physics. 2024 Aug 1;855.
Abdulhamid, M. I., et al. “Collision-energy dependence of deuteron cumulants and proton-deuteron correlations in Au+Au collisions at RHIC.” Physics Letters Section B Nuclear Elementary Particle and High Energy Physics, vol. 855, Aug. 2024. Scopus, doi:10.1016/j.physletb.2024.138560.
Abdulhamid MI, Aboona BE, Adam J, Adamczyk L, Adams JR, Aggarwal I, Aggarwal MM, Ahammed Z, Aschenauer EC, Aslam S, Atchison J, Bairathi V, Ball Cap JG, Barish K, Bellwied R, Bhagat P, Bhasin A, Bhatta S, Bhosale SR, Bielcik J, Bielcikova J, Brandenburg JD, Broodo C, Cai XZ, Caines H, Calderón de la Barca Sánchez M, Cebra D, Ceska J, Chakaberia I, Chaloupka P, Chan BK, Chang Z, Chatterjee A, Chen D, Chen J, Chen JH, Chen Z, Cheng J, Cheng Y, Choudhury S, Christie W, Chu X, Crawford HJ, Csanád M, Dale-Gau G, Das A, Deppner IM, Dhamija A, Dixit P, Dong X, Drachenberg JL, Duckworth E, Dunlop JC, Engelage J, Eppley G, Esumi S, Evdokimov O, Eyser O, Fatemi R, Fazio S, Feng CJ, Feng Y, Finch E, Fisyak Y, Flor FA, Fu C, Gagliardi CA, Galatyuk T, Gao T, Geurts F, Ghimire N, Gibson A, Gopal K, Gou X, Grosnick D, Gupta A, Guryn W, Hamed A, Han Y, Harabasz S, Harasty MD, Harris JW, Harrison-Smith H, He W, He XH, He Y, Herrmann N, Holub L, Hu C, Hu Q, Hu Y, Huang H, Huang HZ, Huang SL, Huang T, Huang X, Huang Y, Humanic TJ, Isshiki M, Jacobs WW. Collision-energy dependence of deuteron cumulants and proton-deuteron correlations in Au+Au collisions at RHIC. Physics Letters Section B Nuclear Elementary Particle and High Energy Physics. 2024 Aug 1;855.
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Published In

Physics Letters Section B Nuclear Elementary Particle and High Energy Physics

DOI

10.1016/j.physletb.2024.138560

ISSN

0370-2693

Publication Date

August 1, 2024

Volume

855

Related Subject Headings

  • Nuclear & Particles Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences
  • 0105 Mathematical Physics