Scalar field and QCD constraints in Nuclear Physics

Abstract : Relativistic theories of nuclear matter are discussed in a new pespective. First the chiral character of the scalar nuclear field is introduced in the framework of the linear sigma model. With the assumption that the nucleon mass originates in part from the coupling to the quark condensate it is possible to relate the optical potential for the propagation of the scalar field to the QCD scalar susceptibility of the nucleon, on which indications exist from the lattice evolution of the nucleon mass with the quark mass. Constraining the parameters of the nuclear scalar potential by the lattice expansion parameters a successful description of the nuclear saturation properties can be reached.
docType_s : Conference papers
Domain :


http://hal.in2p3.fr/in2p3-00271889
Contributor : Florès Sylvie <>
Submitted on : Thursday, April 10, 2008 - 3:00:15 PM
Last modification on : Thursday, April 10, 2008 - 3:00:15 PM

Files

ericson-6s.pdf
fileSource_public_greenPublisher

Identifiers

  • HAL Id : in2p3-00271889, version 1
  • ARXIV : 0804.1683

Collections

Citation

M. Ericson, G. Chanfray. Scalar field and QCD constraints in Nuclear Physics. Workshop on Scalar Mesons and Related Topics, Feb 2008, Lisbonne, Portugal. <in2p3-00271889>

Export

Share

Metrics