QCD sum rules for vector mesons in the nuclear medium

Journal Article · Wed Jul 01 00:00:00 EDT 1992 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.46.R34· OSTI ID:7277439

Hatsuda, T ^[1]; Lee, S H ^[2]

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1. Institute for Nuclear Theory, University of Washington, HN-12, Seattle, Washington 98195 (United States)
2. Department of Physics, Yonsei University, Seoul 120-749 (Korea, Republic of)

A consistent treatment of quantum chromodynamical (QCD) sum rules in the nuclear medium is developed. Its close relation to the structure functions of the nucleon in the deep inelastic scattering is emphasized. The formalism is applied to the spectral changes of vector mesons ({rho}, {omega}, and {phi}) in the nuclear matter. A linear decrease of the masses as a function of density is found. The four-quark condensate {l angle}({ital {bar q}q}){sup 2}{r angle} and a twist-two condensate {l angle}{ital {bar q}}{gamma}{sub {mu}}{ital {bar q}{mu}}{ital D{nu}}{ital q}{r angle} in medium play dominant roles for the mass-shift of light mesons. Physical implications of the result in finite nuclei and in heavy ion collisions are also discussed.

• DOE Contract Number: FG06-90ER40561
• OSTI ID: 7277439
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Vol. 46:1; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
NUCLEAR MATTER
QUANTUM CHROMODYNAMICS
CHIRAL SYMMETRY
CONDENSATES
HEAVY ION REACTIONS
MASS SPECTRA
QUARKS
SUM RULES
TEMPERATURE ZERO K
VECTOR MESONS
BOSONS
CHARGED-PARTICLE REACTIONS
ELEMENTARY PARTICLES
EQUATIONS
FERMIONS
FIELD THEORIES
HADRONS
MATTER
MESONS
NUCLEAR REACTIONS
POSTULATED PARTICLES
QUANTUM FIELD THEORY
SPECTRA
SYMMETRY
663110* - General & Average Properties of Nuclei & Nuclear Energy Levels- (1992-)
662230 - Quantum Chromodynamics- (1992-)