Intermediate mass dileptons from a chemically non-equilibrated quark gluon plasma - INSPIRE

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Intermediate mass dileptons from a chemically non-equilibrated quark gluon plasma

2003

13 pages

Published in:

Nucl.Phys.A 724 (2003) 477-489

DOI:

10.1016/S0375-9474(03)01516-1

View in:

Nuclear Science References

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Abstract: (Elsevier)

We have studied the evolution and dilepton production of a chemically equilibrating quark-gluon plasma considering finite baryon density based on Jüttner distribution of partons, and found that due to the increasing of the quark phase life-time with increasing initial quark chemical potential, high initial temperature, large gluon density of the system as well as large gluon fusion gg→c c ̄ cross section in the intermediate mass region, quark–antiquark annihilation q q ̄ →l l ̄ , especially, thermal charmed quarks from the gluon fusion gg→c c ̄ and quark–antiquark annihilation q q ̄ →c c ̄ provide a dominant contribution to dileptons, resulting in a significant enhancement of intermediate mass dileptons.

25.75.Nq
12.38.Mh
24.85.+p
Chemical equilibration
Quark–gluon plasma
Dilepton
scattering: heavy ion
gold
quark gluon: plasma
quark: momentum spectrum

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Figures(0)

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