Chirally symmetric effective field theory for nuclei

Andrzej Staszczak

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arXiv · 0907.1930

Chirally symmetric effective field theory for nuclei

Andrzej Staszczak

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Abstract

The Lorentz-invariant nuclear lagrangian of Furnstahl, Serot and Tang (FST) is discussed. The FST lagrangian is derived in terms of an effective field theory and exhibits a nonlinear realization of chiral symmetry $SU(2)_L\times SU(2)_R$. The relevant degrees of freedom are nucleons, pions and the low-lying non-Goldstone bosons: isoscalar scalar ($σ$) and vector ($ω$) mesons, and isovector vector ($ρ$) mesons. The terms in the lagrangian are organized by applying Georgi's naive dimensional analysis and naturalness condition. As a consequence all coupling constants in theory are dimensionless and of order unity.

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Andrzej Staszczak. 2009-07-10. Chirally symmetric effective field theory for nuclei. https://arxiv.org/abs/0907.1930

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