Measurements of directed and elliptic flow for D0 and D0 mesons using the STAR detector at RHIC

Singha, Subhash; Arkhipkin, Dmitry

doi:10.1016/j.nuclphysa.2018.09.010

Title: Measurements of directed and elliptic flow for D0 and D0 mesons using the STAR detector at RHIC

Conference · Mon May 14 00:00:00 EDT 2018

DOI:https://doi.org/10.1016/j.nuclphysa.2018.09.010· OSTI ID:1501603

Singha, Subhash; Arkhipkin, Dmitry

We report on the first evidence for a non-zero rapidity-odd directed flow (v1) for D0 and D0 mesons in 10-80% centrality Au+Au collisions at psNN = 200 GeV measured with the STAR detector at RHIC. The slope of the v1 rapidity dependence (dv1/dy) averaged over D0 and D0 mesons is -0.081 ± 0.021 ± 0.017, while that of charged kaons is -0.0030 ± 0.0001 ± 0.0002, suggesting significantly larger slope for the D0 mesons. Models indicate that the large dv1/dy of D0 mesons is sensitive to the initially tilted source. We also present a new measurement of the D0 meson elliptic flow (v2) as a function of transverse momentum (pT ) in Au+Au collisions at psNN = 200 GeV with an improved precision with respect to the previously published results.The D0 v2 results are compared to those of light-flavor hadrons to test the number-of-constituent-quark (NCQ) scaling. Both the v1 and v2 results are compared to recent hydrodynamic and transport model calculations.

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Research Organization:: Brookhaven National Lab. (BNL), Upton, NY (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP)

DOE Contract Number:: SC0012704

OSTI ID:: 1501603

Report Number(s):: BNL-211380-2019-CPPJ

Resource Relation:: Journal Volume: 982; Conference: 27th International Conference on Ultrarelativistic Nucleus-Nucleus Collisions (Quark Matter), Venice, Italy, 5/14/2018 - 5/19/2018

Country of Publication:: United States

Language:: English

References (14)

Large Directed Flow of Open Charm Mesons Probes the Three-Dimensional Distribution of Matter in Heavy-Ion Collisions Chatterjee, Sandeep; Bożek, Piotr Physical Review Letters, Vol. 120, Issue 19 https://doi.org/10.1103/PhysRevLett.120.192301	journal	May 2018
Directed flow of charm quarks as a witness of the initial strong magnetic field in ultra-relativistic heavy ion collisions Das, Santosh K.; Plumari, S.; Chatterjee, S. Physics Letters B, Vol. 768 https://doi.org/10.1016/j.physletb.2017.02.046	journal	May 2017
Magnetohydrodynamics, charged currents, and directed flow in heavy ion collisions Gürsoy, Umut; Kharzeev, Dmitri; Rajagopal, Krishna Physical Review C, Vol. 89, Issue 5 https://doi.org/10.1103/PhysRevC.89.054905	journal	May 2014
STAR detector overview Ackermann, K. H.; Adams, N.; Adler, C. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 499, Issue 2-3 https://doi.org/10.1016/S0168-9002(02)01960-5	journal	March 2003
The TOFp/pVPD time-of-flight system for STAR Llope, W. J.; Geurts, F.; Mitchell, J. W. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 522, Issue 3 https://doi.org/10.1016/j.nima.2003.11.414	journal	April 2004
Review of Particle Physics Tanabashi, M.; Hagiwara, K.; Hikasa, K. Physical Review D, Vol. 98, Issue 3 https://doi.org/10.1103/PhysRevD.98.030001	journal	August 2018
The STAR time projection chamber: a unique tool for studying high multiplicity events at RHIC Anderson, M.; Berkovitz, J.; Betts, W. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 499, Issue 2-3 https://doi.org/10.1016/S0168-9002(02)01964-2	journal	March 2003
A single Time-of-Flight tray based on multigap resistive plate chambers for the STAR experiment at RHIC Bonner, B.; Chen, H.; Eppley, G. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 508, Issue 1-2 https://doi.org/10.1016/S0168-9002(03)01347-0	journal	August 2003
Methods for analyzing anisotropic flow in relativistic nuclear collisions Poskanzer, A. M.; Voloshin, S. A. Physical Review C, Vol. 58, Issue 3 https://doi.org/10.1103/PhysRevC.58.1671	journal	September 1998
Event plane resolution correction for azimuthal anisotropy in wide centrality bins Masui, Hiroshi; Schmah, Alexander; Poskanzer, A. M. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 833 https://doi.org/10.1016/j.nima.2016.07.037	journal	October 2016
Beam-Energy Dependence of Directed Flow of $Λ$ , $\bar{Λ}$ , $K^{\pm}$ , $K_{s}^{0}$ , and $ϕ$ in $Au + Au$ Collisions Adamczyk, L.; Adams, J. R.; Adkins, J. K. Physical Review Letters, Vol. 120, Issue 6 https://doi.org/10.1103/PhysRevLett.120.062301	journal	February 2018
Tomography of the quark-gluon plasma by charm quarks Song, Taesoo; Berrehrah, Hamza; Cabrera, Daniel Physical Review C, Vol. 92, Issue 1 https://doi.org/10.1103/PhysRevC.92.014910	journal	July 2015
Effects of initial flow velocity fluctuation in event-by-event (3+1)D hydrodynamics Pang, Longgang; Wang, Qun; Wang, Xin-Nian Physical Review C, Vol. 86, Issue 2 https://doi.org/10.1103/PhysRevC.86.024911	journal	August 2012
Linearized Boltzmann transport model for jet propagation in the quark-gluon plasma: Heavy quark evolution Cao, Shanshan; Luo, Tan; Qin, Guang-You Physical Review C, Vol. 94, Issue 1 https://doi.org/10.1103/PhysRevC.94.014909	journal	July 2016