QCD sum rules for vector mesons in the nuclear medium

Journal Article · Wed Jul 01 04:00:00 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), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 46:1; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

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