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      Cold and dense perturbative Yukawa theory with massive fermions

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          Abstract

          Recent results for the two-loop thermodynamic potential of QCD at finite density have shown that nonzero quark mass corrections to the pressure are relevant and can dramatically affect the structure of compact stars. Motivated by these findings, we consider a simple toy model - cold and dense Yukawa theory - to study the effects of finite fermion masses on the pressure. The role of renormalization group running of the coupling and mass is also discussed. Results within this simple model might be useful in the description of condensates in the core of neutron stars.

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          Nucl. Phys.

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            Finite-temperature field theory

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              Compact Stars: Nuclear Physics, Particle Physics, and General Relativity

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                Author and article information

                Journal
                bjp
                Brazilian Journal of Physics
                Braz. J. Phys.
                Sociedade Brasileira de Física (São Paulo, SP, Brazil )
                0103-9733
                1678-4448
                March 2007
                : 37
                : 1a
                : 26-29
                Affiliations
                [01] Rio de Janeiro RJ orgnameUniversidade Federal do Rio de Janeiro orgdiv1Instituto de Física Brazil
                Article
                S0103-97332007000100010 S0103-9733(07)03700110
                10.1590/S0103-97332007000100010
                1720f25f-b26d-4b0c-91c1-84cefa0fb4c7

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 29 September 2006
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 29, Pages: 4
                Product

                SciELO Brazil


                Yukawa theory,Equation of state,Finite-temperature field theory

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