Extended Sources, Final State Interactions and {Bose-Einstein} Correlations. 2. Resonances and Multiparticle Rescattering

Nov 20, 1989
25 pages
Published in:
  • Z.Phys.C 46 (1990) 305
Report number:
  • OUNP-89-26

Citations per year

199019982006201420220123456
Abstract: (Springer)
I extend the theory of Bose-Einstein correlations to the case where one of a pair of like pions is the daughter of resonance decay and include final state rescattering within the like pion pair. I consider critically the form of the isospin 2s-wave phase shift. The results of numerical calculations yield like pion correlation functions which are at best in marginal agreement with data frome+e− annihilation and proton-proton collisions. I show that the discrepancy which exists is removed by the effects of three (and more) particle rescattering. The quantitative interpretation of Bose-Einstein correlations among hadrons is very complicated unless the effective source size substantially exceeds 1 fm.
  • boson: statistics
  • correlation: two-pion
  • final-state interaction
  • pi pi: interaction
  • interaction: pi pi
  • electron positron: annihilation
  • annihilation: electron positron
  • p p: interaction
  • interaction: p p
  • meson resonance: decay