Scaling Properties Of Fractional Momentum Loss Of High Mathmsubmip Mimit Mi Msub Math Hadrons In Nucleus Nucleus Collisions At Mathmsqrtmsubmi Mimrowmin Mimin Mi Mrow Msub Msqrt Math From 624 Gev To 276 Tev

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Download or read book Scaling Properties of Fractional Momentum Loss of High- [math][msub][mi]p[/mi][mi]T[/mi][/msub][/math] Hadrons in Nucleus-nucleus Collisions at [math][msqrt][msub][mi][/mi][mrow][mi]N[/mi][mi]N[/mi][/mrow][/msub][/msqrt][/math] from 62.4 GeV to 2.76 TeV. written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present measurements of the fractional momentum loss (Sloss = delta pT / pT) of high-transverse-momentum-identified hadrons in heavy-ion collisions. Using pi0 in Au + Au and Cu + Cu collisions at √sNN = 62.4 and 200 GeV measured by the PHENIX experiment at the Relativistic Heavy Ion Collider and and charged hadrons in Pb + Pb collisions measured by the ALICE experiment at the Large Hadron Collider, we studied the scaling properties of Sloss as a function of a number of variables: the number of participants, Npart, the number of quark participants, Nqp, the charged-particle density, dNch/d[eta], and the Bjorken energy density times the equilibration time, epsilonBj[tau]0. We also find that the pT, where Sloss has its maximum, varies both with centrality and collision energy. Above the maximum, Sloss tends to follow a power-law function with all four scaling variables. Finally, the data at √sNN = 200 GeV and 2.76 TeV, for sufficiently high particle densities, have a common scaling of Sloss with dNch/d[eta] and [epsilon]Bj[tau]0, lending insight into the physics of parton energy loss.