Anisotropy of dilepton emission from nuclear collisions

Technical Report · Mon Nov 07 00:00:00 EST 1994

DOI:https://doi.org/10.2172/10106081· OSTI ID:10106081

Bratkovskaya, E L; Teryaev, O V ^[1]; Toneev, V D ^[2]

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1. Joint Inst. for Nuclear Research, Dubna (Russian Federation). Bogolubov Lab. of Theoretical Physics
2. Washington Univ., Seattle, WA (United States). Inst. for Nuclear Theory

Attention is paid to studying the angular characteristics of e{sup +}e{sup {minus}} pairs created in collisions with nuclear targets at intermediate and relativistic energies. Arising due to general spin and angular momentum constraints, the dilepton anisotropy seems to be quite sensitive to the contribution of different sources and may be used for disentangling these sources (or models) as well as an additional signature of a possible chiral symmetry restoration and phase transition of hadrons into the quark-gluon plasma. An anisotropy estimate for some dilepton sources is given and its relevance to the problems mentioned is discussed.

• Research Organization: Washington Univ., Seattle, WA (United States). Inst. for Nuclear Theory
• Sponsoring Organization: USDOE, Washington, DC (United States); International Science Foundation
• DOE Contract Number: FG06-90ER40561
• OSTI ID: 10106081
• Report Number(s): DOE/ER/40561-167; ON: DE95004354; IN: INT94-15-01; BR: 35KB01000/KB0300000; CNN: Grant N0 MP8000; TRN: AHC29503%%143
• Resource Relation: Other Information: PBD: 7 Nov 1994
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ELECTRON PAIRS
PAIR PRODUCTION
QUARK MATTER
DETECTION
HEAVY ION REACTIONS
NUCLEAR REACTION KINETICS
PROBES
PHASE TRANSFORMATIONS
NUCLEAR MATTER
DALITZ PLOT
MESONS
BREMSSTRAHLUNG
DRELL MODEL
663450
662230
HEAVY-ION-INDUCED REACTIONS AND SCATTERING
QUANTUM CHROMODYNAMICS