Nucleon QCD sum rules in nuclear matter including radiative corrections

Journal Article · Thu Oct 15 04:00:00 EDT 2009 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.80.045208· OSTI ID:21293981

Drukarev, E G; Ryskin, M G; Sadovnikova, V A ^[1]

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1. Petersburg Nuclear Physics Institute, Gatchina, St. Petersburg, RU-188300 (Russian Federation)

We calculate the nucleon parameters in nuclear matter using the QCD sum rules method. The radiative corrections to only the leading operator product expansion terms are included, with the corrections of the order {alpha}{sub s} beyond the logarithmic approximation taken into account. The density dependence of the influence of radiative corrections on the nucleon parameters is obtained. At saturation density, the radiative corrections increase the values of vector and scalar self-energies by about 40 and 30 MeV, respectively, which is much smaller than the result of a straightforward naive estimation. The results appear to be stable with respect to possible variations of the value of {lambda}{sub QCD}.

• OSTI ID: 21293981
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 4 Vol. 80; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
APPROXIMATIONS
COMPUTERIZED SIMULATION
MEV RANGE 10-100
NUCLEAR MATTER
NUCLEONS
OPERATOR PRODUCT EXPANSION
QUANTUM CHROMODYNAMICS
RADIATIVE CORRECTIONS
SATURATION
SELF-ENERGY
SUM RULES