TY - JOUR
T1 - Measurement of Prompt D0 Meson Azimuthal Anisotropy in Pb-Pb Collisions at sqrt[s_{NN}]= 5.02 TeV
AU - CMS Collaboration
AU - Beck, Lana
AU - Brooke, Jim
AU - Clement, Emyr
AU - Cussans, David
AU - Goldstein, Joel
AU - Heath, Greg
AU - Heath, Helen
AU - Kreczko, Luke
AU - Newbold, David
AU - Paramesvaran, Sudarshan
AU - Sakuma, Tai
AU - Smith, Vincent
PY - 2018/5/16
Y1 - 2018/5/16
N2 - The prompt D0 meson azimuthal anisotropy coefficients, v2 and v3, are measured at midrapidity (|y|<1.0) in Pb-Pb collisions at a center-of-mass energy √sNN=5.02 TeV per nucleon pair with data collected by the CMS experiment. The measurement is performed in the transverse momentum (pT) range of 1 to
40 GeV/c, for central and midcentral collisions. The
v2 coefficient is found to be positive throughout the
pT range studied. The first measurement of the prompt
D0 meson v3 coefficient is performed, and values up to 0.07 are observed for pT around 4 GeV/c. Compared to measurements of charged particles, a similar pT dependence, but smaller magnitude for pT < 6GeV/c, is found for prompt D0 meson v2 and v3 coefficients. The results are consistent with the presence of collective motion of charm quarks at low pT and a path length dependence of charm quark energy loss at high pT, thereby providing new constraints on the theoretical description of the interactions between charm quarks and the quark-gluon plasma.
AB - The prompt D0 meson azimuthal anisotropy coefficients, v2 and v3, are measured at midrapidity (|y|<1.0) in Pb-Pb collisions at a center-of-mass energy √sNN=5.02 TeV per nucleon pair with data collected by the CMS experiment. The measurement is performed in the transverse momentum (pT) range of 1 to
40 GeV/c, for central and midcentral collisions. The
v2 coefficient is found to be positive throughout the
pT range studied. The first measurement of the prompt
D0 meson v3 coefficient is performed, and values up to 0.07 are observed for pT around 4 GeV/c. Compared to measurements of charged particles, a similar pT dependence, but smaller magnitude for pT < 6GeV/c, is found for prompt D0 meson v2 and v3 coefficients. The results are consistent with the presence of collective motion of charm quarks at low pT and a path length dependence of charm quark energy loss at high pT, thereby providing new constraints on the theoretical description of the interactions between charm quarks and the quark-gluon plasma.
U2 - 10.1103/PhysRevLett.120.202301
DO - 10.1103/PhysRevLett.120.202301
M3 - Article (Academic Journal)
C2 - 29864330
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 120
M1 - 202301
ER -