Quadrupole Anisotropy in Dihadron Azimuthal Correlations in Centrald+AuCollisions atsNN=200 

Measurement of Long-Range Angular Correlation and Quadrupole Anisotropy of Pions and (Anti)Protons in Centrald+AuCollisions atsNNAdare1, Aidala2, Ajitanand3 et al. 2015Phys. Rev. Lett.Self Cite153131180View full textAdd to dashboardCite

“…The v 2 in d+Au has been measured from hadron pair correlations, within a limited rapidity range (0.7 > |∆η| > 0.48) and under the assumption that jet-like correlations are the same in various multiplicity-selected events [16]. In this Letter, we report measurements of azimuthal correlations in top 5% central d+Au and minimum bias p+p collisions between charged hadrons at midrapidity (|η| < 0.35) and energy deposited at large rapidity −3.7 < η < −3.1 (Au-going direction).…”

Measurement of the relative yields of ψ(2S) to ψ(1S) mesons produced at forward and backward rapidity in Adare1, Aidala2, Ajitanand3 et al. 2017Phys. Rev. CSelf Cite

“…In collisions involving nuclei, the initial heavy quark production can be affected by modifications of the parton distribution functions [6], energy loss in the nucleus [7], and scattering with other partons [8]. Effects which may be of hydrodynamic origin are also present in small systems [9][10][11], and may further alter the heavy quark final state [12,13]. If these flow effects are due to quarkgluon-plasma formation, the presence of deconfined colored partons can inhibit coalescence into a bound state or dissolve fully-formed bound states [14].…”

Angular structure of jet quenching within a hybrid strong/weak coupling model

“…The study of these collisions at the Relativistic Heavy Ion Collider (RHIC) and at the Large Hadron Collider (LHC) has demonstrated that matter at temperatures above the crossover between hot hadronic matter and hotter QGP exhibits strong collective phenomena [1][2][3][4][5][6][7] which can be described successfully by hydrodynamic simulations of the rapid expansion and cooling of the initially lumpy droplets of matter produced in the collisions [8][9][10][11][12][13][14][15][16][17][18]. Such strong collectivity has also recently been observed in smaller colliding systems, including p-Pb, p-p or 3 He-Au [19][20][21][22][23][24][25][26][27][28][29], for which hydrodynamic simulations also seem to be successful [30][31][32][33][34][35][36][37]. The applicability of hydrodynamics from early times in the evolution and for small systems suggests that the matter formed in these ultrarelativistic collisions is a strongly coupled liquid.…”