Expansion Effects on Back-to-Back Correlations

Journal Article · Thu Dec 02 00:00:00 EST 2004 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1843679· OSTI ID:20630415

Padula, S S; Krein, G ^[1]; Csoergo, T ^[2]; Hama, Y ^[3]; Panda, P K ^[4]

---

1. Instituto de Fisica Teorica, Universidade Estadual Paulista, Rua Pamplona 145, 01405-900 Sao Paulo, SP (Brazil)
2. MTA KFKI RMKI, H - 1525 Budapest 114, PO Box 49 (Hungary)
3. Instituto de Fisica, Universidade de Sao Paulo, C.P. 66318, 05389-970 Sao Paulo, SP (Brazil)
4. Departamento Fisica - CFM , Universidade Federal de Santa Catarina, C.P. 476, 88040-900 Florianopolis, SC (Brazil)

The back-to-back correlations (BBC) of particle-antiparticle pairs, signalling in-medium mass modification, are studied in a finite size thermalized medium. The width of BBC function is explicitly evaluated in the case of a nonrelativistic spherically symmetric expanding fireball. The effect of the flow is to reduce the BBC signal as compared to the case of non flow. Nevertheless, a significant signal survives finite-time emission plus expansion effects.

• OSTI ID: 20630415
• Journal Information: AIP Conference Proceedings, Vol. 739, Issue 1; Conference: Joint meeting on QCD and QCP: 9. hadron physics and 7. relativistic aspects of nuclear physics, Rio de Janeiro (Brazil), 28 Mar - 3 Apr 2004; Other Information: DOI: 10.1063/1.1843679; (c) 2004 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
ANTIPARTICLES
CORRELATIONS
EMISSION
EXPANSION
FIREBALL MODEL
MODIFICATIONS
PARTICLE WIDTHS
REST MASS