Pion Multiplicity Distribution in Proton-Antiproton Annihilation at Rest

Details Pion Multiplicity Distribution in Proton-Antiproton Annihilation at Rest Pion Multiplicity Distribution in Proton-Antiproton Annihilation at Rest

1994-09-16

arxiv.org/abs/hep-ph/9409343v1

Z.Phys.C67:281-286,1995

Physics

High Energy Physics

High Energy Physics - Phenomenology

13pages, TPR-94-30

Scientific paper

10.1007/BF01571289

The pion multiplicity distribution is widely believed to reflect the statistical aspects of $\bar{p}p$ annihilation at rest. We try to reproduce it in a grand canonical picture with explicit conservation of electric charge, isospin, total angular momentum, and the parity quantum numbers $P$, $C$, and $G$ via the projection operator formalism. Bose statistics is found to be non-negligible, particularly in fixing the interaction volume. The calculated pion multiplicity distribution for $\left\langle n_{\pi} \right\rangle = 5$ turns out to depend strongly on the conservation of the angular momentum and connected quantum numbers, as well as on the spin state occupation in S-wave annihilation. However, the empirical Gaussian pion multiplicity distribution cannot be reproduced. This calls in question either the statistical ansatz or the rather old data themselves.

Affiliated with

Also associated with

No associations

Rating

Pion Multiplicity Distribution in Proton-Antiproton Annihilation at Rest 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 Pion Multiplicity Distribution in Proton-Antiproton Annihilation at Rest, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pion Multiplicity Distribution in Proton-Antiproton Annihilation at Rest will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-566330