Gluon saturation effects on the color singlet J/Psi production in high energy dA and AA collisions

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2012-01-01
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Dominguez, F.
Kharzeev, D.
Levin, E.
Mueller, A.
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Tuchin, Kirill
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Physics and Astronomy
Physics and astronomy are basic natural sciences which attempt to describe and provide an understanding of both our world and our universe. Physics serves as the underpinning of many different disciplines including the other natural sciences and technological areas.
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We derive the formulae for the cross section of J/Psi production in high energy pA and AA collisions taking into account the gluon saturation/color glass condensate effects. We then perform the numerical calculations of the corresponding nuclear modification factors and find a good agreement between our calculations and the experimental data on . J/Psi production in pA collisions. We also observe that cold nuclear modification effects alone cannot describe the data on . J/Psi production in AA collisions. Additional final state suppression (at RHIC) and enhancement (at LHC) mechanisms are required to explain the experimental observations.

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This article is from Physics Letters B 710 (2012): 182, doi: 10.1016/j.physletb.2012.02.068. Posted with permission.

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Sun Jan 01 00:00:00 UTC 2012
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