Fermions and Gauge Vector Mesons at Finite Temperature and Density. 2. The Ground State Energy of a Relativistic electron Gas
Sep, 197682 pages
Published in:
- Phys.Rev.D 16 (1977) 1147
Report number:
- MIT-CTP-576
Citations per year
Abstract: (APS)
We calculate the ground-state energy of a relativistic electron gas up to and including effects of order α2logα and α2. Cutting rules are developed which relate a vacuum-graph expansion for the thermodynamic potential to phase-space integrals over Feynman amplitudes. Overlapping infrared divergences, which cancel when all contributions of order α2 are summed, are treated by performing a dimensional continuation to 4+ε dimensions. Ultraviolet divergences associated with electron wave-function and charge renormalizations are rendered finite by use of a Landau gauge appropriate to 4+ε dimensions.- FERMION
- VECTOR MESON: GAUGE
- ELECTRON: GAS
- RELATIVISTIC
- QUARK: GAS
- POTENTIAL: THERMODYNAMICAL
- EXCHANGE: ENERGY
- FIELD THEORY: VACUUM POLARIZATION
- FIELD THEORY: INFRARED PROBLEM
- POLARIZATION: TENSOR
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