Statistical model analysis of multiparticle correlations in e^+e^- annihilation

Details Statistical model analysis of multiparticle correlations in e^+e^- annihilation Statistical model analysis of multiparticle correlations in e^+e^- annihilation

1998-05-22

arxiv.org/abs/hep-ph/9805421v2

Phys.Rev. D59 (1999) 014024

Physics

High Energy Physics

High Energy Physics - Phenomenology

42pages including 20figures. submitted to Physical Reviw D

Scientific paper

10.1103/PhysRevD.59.014024

A new statistical model for multiparticle production in $e^+e^-$ annihilation is proposed based on the idea of the longitudinal phase space with limited transverse momentum. The longitudinal rapidity space is divided into cells of equal size in order to take into account the Bose-Einstein correlations(BEC) with a finite correlation length $\delta y$. The maximum entropy method is used to determine the probability distributions of the final state pions (or $\rho$ mesons) for a given mean multiplicity, mean transverse momentum and mean total energy. Event simulation based on our model is performed in two extreme cases, a $\pi$-model and a $\rho$-model. The $\pi$-model assumes that only pions are produced directly. On the other hand, the $\rho$-model assumes that only $\rho$ mesons are produced directly and they decay into pions. A good overall fit to experimental data from PETRA to LEP energy regions is obtained for $\delta y$ ranging from 0.6 to 1.2 in the $\pi$-model. We found that the BEC plays a very important role to reproduce various correlation data. In some correlation data, resonance effect and conservation laws are also important.

Affiliated with

Also associated with

No associations

Rating

Statistical model analysis of multiparticle correlations in e^+e^- annihilation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Statistical model analysis of multiparticle correlations in e^+e^- annihilation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Statistical model analysis of multiparticle correlations in e^+e^- annihilation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-718842