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CERN Heavy Ion Forum
Jet Measurements in ALICE & Tomography of QCD matter: tools and diagnosis
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Europe/Zurich
40-SS-C01 (CERN)
40-SS-C01
CERN
Description
Jet Measurements in ALICE
We present recent feasibility studies for measuring jet observables in ALICE.
Tomography of QCD matter: tools and diagnosis
Tomography is an important technique to investigate medium properties from the energy attenuation of hard penetrating probes. It has been proposed to apply this technique in heavy ion physics to study the density of color charges of a hot QCD medium. Here, the probability distribution D(epsilon) in the energy loss incurred by incoming and outgoing hard quarks in a QCD medium is computed numerically from the BDMPS gluon spectrum. It is shown to follow an empirical log-normal behavior which allows us to give the quenching weight a simple analytic parameterization. The dependence of our results under the infrared and ultraviolet sensitivity of the gluon spectrum is investigated as well. Finally, as an illustration, we discuss and compare estimates for the quenching of hadron spectra in nuclear matter and in a quark-gluon plasma to HERA and RHIC preliminary data.
Organiser(s): Yiota Foka, Guy Paic and Urs Wiedemann
Information: http://home.cern.ch/a/alicedoc/www/chic/
We present recent feasibility studies for measuring jet observables in ALICE.
Tomography of QCD matter: tools and diagnosis
Tomography is an important technique to investigate medium properties from the energy attenuation of hard penetrating probes. It has been proposed to apply this technique in heavy ion physics to study the density of color charges of a hot QCD medium. Here, the probability distribution D(epsilon) in the energy loss incurred by incoming and outgoing hard quarks in a QCD medium is computed numerically from the BDMPS gluon spectrum. It is shown to follow an empirical log-normal behavior which allows us to give the quenching weight a simple analytic parameterization. The dependence of our results under the infrared and ultraviolet sensitivity of the gluon spectrum is investigated as well. Finally, as an illustration, we discuss and compare estimates for the quenching of hadron spectra in nuclear matter and in a quark-gluon plasma to HERA and RHIC preliminary data.
Organiser(s): Yiota Foka, Guy Paic and Urs Wiedemann
Information: http://home.cern.ch/a/alicedoc/www/chic/