Inclusive Features of π+ Spectra in Coherent p¯d Interactions at 5.55 GeV/c
Abstract
We present an analysis of the coherently produced single and double inclusive p¯d-->π+X and p¯d-->π+dX processes obtained from a 150 000-photograph p¯d exposure at 5.55 GeV/c. Here X, which denotes anything, contains for the p¯d-->π+X reaction at least a deuteron or its dissociated pn state produced by a final-state interaction. A representative sample of events was obtained by using only fitted channels. A good parameterization of the single inclusive process is obtained using a thermodynamical-type function. A comparison of our data with other inclusive processes is carried out. As we use only fitted channels for the present analysis, we are able to observe a prominent d* enhancement in the final state. The presence of this enhancement is used to define a short-range correlation length in the rapidity space for the p¯d-->π+X and p¯d-->π+dX reactions. For the p¯d-->π+dX process we define some correlation parameters between the outgoing π+ and d, and compare these parameters with peripheral phase-space predictions.
- Publication:
-
Physical Review D
- Pub Date:
- November 1972
- DOI:
- 10.1103/PhysRevD.6.2311
- Bibcode:
- 1972PhRvD...6.2311B