Coulomb Effects in Femtoscopy

Details Coulomb Effects in Femtoscopy Coulomb Effects in Femtoscopy

2009-02-28

arxiv.org/abs/0903.0111v3

Phys.Rev.C80:034907,2009

Physics

Nuclear Physics

Nuclear Theory

19 pages, 16 figures; final version, Phys. Rev. C80, 034907 (2009)

Scientific paper

10.1103/PhysRevC.80.034907

The correlation function of two identical particles - pions or kaons - interacting via Coulomb potential is computed. The particles are emitted from an anisotropic particle's source of finite lifetime. In the case of pions, the effect of halo is taken into account as an additional particle's source of large spatial extension. The relativistic effects are discussed in detail. The Bowler-Sinyukov procedure to remove the Coulomb interaction is carefully tested. In the absence of halo the procedure is shown to work very well even for an extremely anisotropic source. When the halo is taken into account the free correlation function, which is extracted by means of the Bowler-Sinyukov procedure, is distorted at small relative momenta but the source parameters are still correctly reproduced.

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