TY - JOUR
T1 - Beam-energy dependence of the directed flow of deuterons in Au+Au collisions
AU - Adam, J.
AU - Adamczyk, L.
AU - Adams, J. R.
AU - Adkins, J. K.
AU - Agakishiev, G.
AU - Aggarwal, M. M.
AU - Ahammed, Z.
AU - Alekseev, I.
AU - Anderson, D. M.
AU - Aparin, A.
AU - Aschenauer, E. C.
AU - Ashraf, M. U.
AU - Atetalla, F. G.
AU - Attri, A.
AU - Averichev, G. S.
AU - Bairathi, V.
AU - Barish, K.
AU - Behera, A.
AU - Bellwied, R.
AU - Bhasin, A.
AU - Bielcik, J.
AU - Bielcikova, J.
AU - Bland, L. C.
AU - Bordyuzhin, I. G.
AU - Brandenburg, J. D.
AU - Brandin, A. V.
AU - Butterworth, J.
AU - Caines, H.
AU - De La Barca Sánchez, M.
AU - Cebra, D.
AU - Chakaberia, I.
AU - Chaloupka, P.
AU - Chan, B. K.
AU - Chang, F. H.
AU - Chang, Z.
AU - Chankova-Bunzarova, N.
AU - Chatterjee, A.
AU - Chen, D.
AU - Chen, J. H.
AU - Chen, X.
AU - Chen, Z.
AU - Cheng, J.
AU - Cherney, M.
AU - Chevalier, M.
AU - Choudhury, S.
AU - Christie, W.
AU - Chu, X.
AU - Crawford, H. J.
AU - Csanád, M.
AU - Fatemi, R.
N1 - Publisher Copyright:
© 2020 American Physical Society.
PY - 2020/10/16
Y1 - 2020/10/16
N2 - We present a measurement of the first-order azimuthal anisotropy v1 of deuterons from Au+Au collisions at sNN=7.7, 11.5, 14.5, 19.6, 27, and 39 GeV recorded with the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The energy dependence of the v1(y) slope, dv1/dy|y=0, for deuterons, where y is the rapidity, is extracted for semicentral collisions (10%-40% centrality) and compared with that of protons. While the v1(y) slopes of protons are generally negative for sNN>10GeV, those for deuterons are consistent with zero, a strong enhancement of the v1(y) slope of deuterons is seen at the lowest collision energy (the largest baryon density) at sNN=7.7GeV. In addition, we report the transverse momentum dependence of v1 for protons and deuterons. The experimental results are compared with transport and coalescence models.
AB - We present a measurement of the first-order azimuthal anisotropy v1 of deuterons from Au+Au collisions at sNN=7.7, 11.5, 14.5, 19.6, 27, and 39 GeV recorded with the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The energy dependence of the v1(y) slope, dv1/dy|y=0, for deuterons, where y is the rapidity, is extracted for semicentral collisions (10%-40% centrality) and compared with that of protons. While the v1(y) slopes of protons are generally negative for sNN>10GeV, those for deuterons are consistent with zero, a strong enhancement of the v1(y) slope of deuterons is seen at the lowest collision energy (the largest baryon density) at sNN=7.7GeV. In addition, we report the transverse momentum dependence of v1 for protons and deuterons. The experimental results are compared with transport and coalescence models.
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U2 - 10.1103/PhysRevC.102.044906
DO - 10.1103/PhysRevC.102.044906
M3 - Article
AN - SCOPUS:85094100808
SN - 2469-9985
VL - 102
JO - Physical Review C
JF - Physical Review C
IS - 4
M1 - 044906
ER -