Thermal Operator Representation of Finite-Temperature Amplitudes in the Presence of Chemical Potential

Details Thermal Operator Representation of Finite-Temperature Amplitudes in the Presence of Chemical Potential Thermal Operator Representation of Finite-Temperature Amplitudes in the Presence of Chemical Potential

2006-01-12

arxiv.org/abs/hep-ph/0601092v2

Phys.Rev. D73 (2006) 047702

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages

Scientific paper

10.1103/PhysRevD.73.047702

In a recent paper [Phys. Rev. D {\bf 72}, 085006 (2005)], Brandt {\em et al}. deduced the thermal operator representation for a thermal $N$-point amplitude, both in the imaginary-time and real-time formalisms. In the case when a chemical potential present, however, the representation is not as simple as in the case with vanishing chemical potential. We propose a much simpler and transparent representation for the case of non-zero chemical potential.

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