The Diffractive Process in Six-Prong Proton-Proton Interactions at 205 GeV/c
Jul, 1977
16 pages
Published in:
- Phys.Rev.D 16 (1977) 3122
Report number:
- FERMILAB-PUB-77-143-E,
- ANL-HEP-PR-77-38
Experiments:
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Abstract: (APS)
We have studied the 6-prong events in a 50000-picture exposure of the Fermilab 30-inch hydrogen bubble chamber to a 205-GeV/c proton beam. The data consist of complete measurements of 442 events, each containing a proton track with Plab<1.4 GeV/c. A low-mass diffractive peak is seen in the event with 5 charged particles in the forward center-of-mass hemisphere. An analysis based on the rapidity distributions of the outgoing tracks and the missing mass gives a single diffractive cross section of 0.88±0.12 mb for both hemispheres of which the final state ppπ+π+π−π− contributes 0.18±0.07 mb. In the diffractive sample, only 0.20±0.06 mb corresponds to events decaying through an intermediate state containing a Δ++. We measure an upper limit for the double diffraction cross section of 0.38±0.12 mb.- P P: INCLUSIVE REACTION
- P: FINAL STATE
- FINAL STATE: P
- CHARGED PARTICLE: MULTIPLE PRODUCTION
- MULTIPLE PRODUCTION: CHARGED PARTICLE
- P P: INTERACTION
- INTERACTION: P P
- PI+: FINAL STATE
- FINAL STATE: PI+
- PI-: FINAL STATE
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