Abstract
Measurements of jets and heavy flavour, the so called hard probes, play a crucial role in understanding properties of hot and dense nuclear matter created in high energy heavy-ion collisions. The measurements at the Relativistic Heavy Ion Collider (RHIC) showed that in central Au+Au collisons at RHIC energy ( √sNN = 200 GeV) the nuclear matter created has properties close to those of perfect liquid, manifests partonic degrees of freedom and is opaque to hard probes. In order to draw quantitative conclusions on properties of this hot and dense nuclear matter reference measurements in proton-proton collisions and d+Au collisions are essential to estimate cold nuclear matter effects. In this proceedings a review of recent results on hard probes measurements in p+p, d+Au and A+A collisions as well as of beam energy dependence of jet quenching from STAR and PHENIX experiments at RHIC is presented.
Highlights
Studies of nuclear matter under extreme conditions of energy density and temperature are on the frontiers of research carried in modern nuclear physics
The Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory is currently the only facility in the world dedicated to systematic studies of nuclear matter under extreme conditions of high energy density and temperature
Hard probes play an essential role in understanding properties of hot and dense nuclear matter created in high energy heavy ion collisions because they are created early in the collision
Summary
Studies of nuclear matter under extreme conditions of energy density and temperature are on the frontiers of research carried in modern nuclear physics. EPJ Web of Conferences nuclear matter effects are expected to be present This so called ”jet quenching” effect is observed for light (u, d, s) as well as heavy (c and b) quark flavours. In this proceedings, an overview of recent results on measurements of beam energy dependence of jet quenching and measurements of jets and heavy flavour, the so called hard probes, at RHIC is given. Hard probes play an essential role in understanding properties of hot and dense nuclear matter created in high energy heavy ion collisions because they are created early in the collision. For complete understanding of existing data measurements in various collision systems are necessary, where RHIC and its flexibility of a large variety of collision species from deuteron up to uranium including asymmetric collisions plays essential role
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