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https://hdl.handle.net/10316/110180
Title: | Radiatively induced non linearity in the Walecka model | Authors: | Cavagnoli, Rafael Pinto, Marcus Benghi |
Keywords: | Renormalization; Nuclear matter; Finite densities, Vacuum corrections; Walecka model | Issue Date: | 2010 | Publisher: | Springer Nature | Project: | CAPES CNPq |
Serial title, monograph or event: | Brazilian Journal of Physics | Volume: | 40 | Issue: | 4 | Abstract: | We evaluate the effective potential for the conventional linear Walecka non perturbatively up to one loop. This quantity is then renormalized with a prescription which allows finite vacuum contributions to the three as well as four 1PI Green’s functions to survive. These terms, which are absent in the standard relativistic Hartree approximation, have a logarithmic energy scale dependence that can be tuned so as to mimic the effects of f3 and f4 type of terms present in the non linear Walecka model improving quantities such as the compressibility modulus and the effective nucleon mass, at saturation, by considering energy scales which are very close to the nucleon mass at vanishing density. | URI: | https://hdl.handle.net/10316/110180 | ISSN: | 0103-9733 | DOI: | 10.1590/S0103-97332010000400014 | Rights: | openAccess |
Appears in Collections: | FCTUC Física - Artigos em Revistas Internacionais |
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