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Nuclear relativistic Hartree-Fock calculations including pions interacting with a scalar field

Abstract: The effect of pions on the nuclear shell structure is analyzed in a relativistic Hartree-Fock approximation (RHFA). The Lagrangian includes, in particular, a mixture of ?N pseudoscalar (PS) and pseudovector (PV) couplings, self-interactions of the scalar field ? and a ? - ? interaction that dresses pions with an effective mass (m*?). It is found that an increase of m*? strongly reduces the unrealistic effect of pions, keeping roughly unchanged their contribution to the total binding energy.

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Authorship: Marcos S., López-Quelle M., Niembro R., Savushkin L.,

Congress: International Conference on Nuclear Structure and Dynamics (2ª : 2012 : Opatija, Croacia)

Publisher: American Institute of Physics

Publication date: 01/10/2012

No. of pages: 2

Publication type: Conference object

DOI: 10.1063/1.4764251

ISSN: 0094-243X,1551-7616

Publication Url: https://doi.org/10.1063/1.4764251

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Authorship

SATURNINO MARCOS MARCOS

MERCEDES LOPEZ QUELLE

RAMON NIEMBRO BARCENA

SAVUSHKIN, L.N.

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