Heavy quark pair production and parton saturation in pA collisions at the LHC

20 May 2014, 16:30
2h
spectrum (darmstadtium)

spectrum

darmstadtium

Board: F-48
Poster Open Heavy Flavour and Quarkonia Poster session

Speaker

Kazuhiro Watanabe (The University of Tokyo)

Description

Understanding of the initial state effects on heavy ion collisions is indispensable for quantifying the subsequent hot medium effects in the observables. Heavy quark pair production in proton-nucleus (pA) collisions provides us with a unique opportunity to probe the gluons at small Bjorken's x in the heavy target nucleus, where the so-called parton saturation effect becomes important for particle production. We have studied heavy quark pair production in pA collisions within the color glass condensate (CGC) framework [1] by adopting numerical solutions for gluon distributions obtained from the Balitsky-Kovchegov equation with running coupling corrections [2, 3]. We report our numerical results on J/psi and D productions in pA collisions at the RHIC and LHC energies [4, 5], and discuss possible extension our calculation in light of recent experimental data. References: 1. J.-P. Blaizot, F. Gelis, and R. Venugopalan, Nucl. Phys. A743, 57 (2004). 2. I. Balitsky, Phys. Rev. D75, 014001 (2007). 3. Yuri V. Kovchegov and H. Weigert, Nucl.Phys. A784, 188 (2007). 4. H. Fujii and K. Watanabe, Nucl. Phys. A915, 1 (2013). 5. H. Fujii and K. Watanabe, Nucl. Phys. A920, 78 (2013).

Primary author

Kazuhiro Watanabe (The University of Tokyo)

Co-author

Hirotsugu Fujii (University of Tokyo)

Presentation materials