Measurements of π, K, p spectra in fixed target collisions with STAR
ORAL
Abstract
One of the main physics goals of the Beam Energy Scan (BES) at RHIC is to study the QCD phase diagram, especially around the phase transition
between the quark-gluon plasma (QGP) and hadronic matter. BES Phase-I studied Au+Au collisions from center-of-mass energy (√sNN) of 7.7 to 62.4 GeV. The BES Phase-II extended these measurements in several important ways, one of which was the addition of a fixed target program that pushed the energy reach down to a √sNN of 3.0 GeV (or baryon chemical potential, μB up to 720 MeV). Fixed target collisions at STAR allow for a more extensive scanning of the QCD phase diagram to an important region where the QCD critical point may lie, and to a region dominated by dense baryonic matter. The production of light-flavor hadrons are sensitive to the properties of the hot QCD medium formed, as well as its dynamic evolution. Therefore, the detailed measurements of their productions can provide strong constraints on the physics quantities in the theoretical models of QCD, and may eventually help to reveal the location of the QCD critical point. In this talk, preliminary results on the yields of light-flavor hadrons [π, K, p] from fixed target Au+Au collisions at √sNN = 3.2-7.7 GeV will be presented.
between the quark-gluon plasma (QGP) and hadronic matter. BES Phase-I studied Au+Au collisions from center-of-mass energy (√sNN) of 7.7 to 62.4 GeV. The BES Phase-II extended these measurements in several important ways, one of which was the addition of a fixed target program that pushed the energy reach down to a √sNN of 3.0 GeV (or baryon chemical potential, μB up to 720 MeV). Fixed target collisions at STAR allow for a more extensive scanning of the QCD phase diagram to an important region where the QCD critical point may lie, and to a region dominated by dense baryonic matter. The production of light-flavor hadrons are sensitive to the properties of the hot QCD medium formed, as well as its dynamic evolution. Therefore, the detailed measurements of their productions can provide strong constraints on the physics quantities in the theoretical models of QCD, and may eventually help to reveal the location of the QCD critical point. In this talk, preliminary results on the yields of light-flavor hadrons [π, K, p] from fixed target Au+Au collisions at √sNN = 3.2-7.7 GeV will be presented.
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Presenters
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Mathias Labonte
University of California, Davis
Authors
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Mathias Labonte
University of California, Davis