New QCD Sum Rules for In-Medium Nucleons

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New QCD sum rules for nucleons in nuclear matter are derived from a mixed correlation function of spin-1/2 and spin-3/2 interpolating fields. These sum rules allow a determination of the scalar self-energy of the nucleon independent of the poorly known four-quark condensates. An analysis of these new sum rules in concert with previous nucleon sum rules from spin-1/2 interpolators indicates consistency with the expectations of relativistic mean-field phenomenology. We find $M^* = 0.68 \pm 0.08$ GeV and $Σ_v = 0.31 \pm 0.06$ GeV at nuclear matter saturation density.
Invited talk presented at Baryons '95. 5 page RevTeX Manuscript with embedded figures. This and related papers may also be obtained from http://www.phys.washington.edu/~derek/Publications.html

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Nuclear Theory, High Energy Physics - Phenomenology

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http://salesiana.dossiersoluciones.com/handle/123456789/82615

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/nucl-th/9511031
 http://arxiv.org/abs/nucl-th/9511031

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arXiv