Publication: Beam-energy dependence of the directed flow of deuterons in Au+Au collisions
Дата
2020
Авторы
Adam, J.
Adamczyk, L.
Adams, J. R.
Adkins, J. K.
Alekseev, I.
Brandin, A. V.
Khyzhniak, Y. V.
Kochenda, L.
Kravtsov, P.
Nigmatkulov, G.
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Аннотация
© 2020 American Physical Society.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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Beam-energy dependence of the directed flow of deuterons in Au+Au collisions / Adam, J. [et al.] // Physical Review C. - 2020. - 102. - № 4. - 10.1103/PhysRevC.102.044906
URI
https://www.doi.org/10.1103/PhysRevC.102.044906
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https://openrepository.mephi.ru/handle/123456789/22527
https://www.scopus.com/record/display.uri?eid=2-s2.0-85094100808&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000579351900005
https://openrepository.mephi.ru/handle/123456789/22527