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CERN Heavy Ion Forum
Prospects of medium tomography using hard back-to-back hadron correlationsPro
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Europe/Zurich
40-SS-D01 (CERN)
40-SS-D01
CERN
Description
The idea of jet tomography is to embed a process which is known sufficiently well in simple systems, i.e. hard pQCD scattering in p-p collisions and subsequent fragmentation in vacuum , into an evolving medium created in a heavy-ion collision. Properties of the medium should then be reflected in modifications of hadronic observables as compared to scaled expectations from p-p scattering.
I discuss the prospects of extracting such information about the bulk matter distribution and evolution on the basis of hard hadronic back-to-back correlations. Using both hydrodynamical and parametrized evolution models for the spacetime evolution of the produced matter which have been tested against RHIC data I study six different setups for the spacetime dependence of hard parton energy losses. I show which spacetime regions are probed by one-particle and two-particle observables and study the role of longitudinal and transverse expansion in some detail. While current RHIC data are too limited in momentum coverage, future data for higher trigger energy might provide the lever arm in away side hadron momentum necessary to perform medium tomography. Especially at LHC, a huge momentum range can be accessed and should allow to study the medium evolution in some detail.
Organiser(s): Yiota Foka and Urs Achim Wiedemann
More information: http://aliceinfo.cern.ch/static/HIF/welcome.html
I discuss the prospects of extracting such information about the bulk matter distribution and evolution on the basis of hard hadronic back-to-back correlations. Using both hydrodynamical and parametrized evolution models for the spacetime evolution of the produced matter which have been tested against RHIC data I study six different setups for the spacetime dependence of hard parton energy losses. I show which spacetime regions are probed by one-particle and two-particle observables and study the role of longitudinal and transverse expansion in some detail. While current RHIC data are too limited in momentum coverage, future data for higher trigger energy might provide the lever arm in away side hadron momentum necessary to perform medium tomography. Especially at LHC, a huge momentum range can be accessed and should allow to study the medium evolution in some detail.
Organiser(s): Yiota Foka and Urs Achim Wiedemann
More information: http://aliceinfo.cern.ch/static/HIF/welcome.html