The Nucleon Parton Distribution for Finite Density

Journal Article · Tue Feb 27 00:00:00 EST 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2714451· OSTI ID:21056891

Rozynek, J ^[1]

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1. J.Rozynek Nuclear Theory Department, Soltan Institute for Nuclear Studies, Hoza 69, PL-00-681 Warsaw (Poland)

We present the evolution of the nucleon structure function with barion density in the phenomenological model for the parton distribution in nuclei. The sea parton distributions are described by additional virtual pions in hadron in such a way as to reproduce the nuclear lepton pair production data and saturate the energy-momentum sum rule. The influence of Fermi motion changes the nucleon rest energy and consequently the transverse momentum square of partons inside bound nucleons. Finally we estimate in the Sigma model the critical density where the fluctuations of pion field lead to the chiral symmetry restoration.

• OSTI ID: 21056891
• Journal Information: AIP Conference Proceedings, Vol. 892, Issue 1; Conference: QCHS7: 7. conference on quark confinement and the hadron spectrum, Ponta Delgada, Acores (Portugal), 2-7 Sep 2006; Other Information: DOI: 10.1063/1.2714451; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHIRAL SYMMETRY
DENSITY
DISTRIBUTION
FLUCTUATIONS
GLUONS
LEPTONS
NUCLEI
NUCLEONS
PAIR PRODUCTION
PARTICLE STRUCTURE
PIONS
QUARKS
SIGMA MODEL
STRUCTURE FUNCTIONS
SUM RULES
TRANSVERSE MOMENTUM