Back to Search
Start Over
Evidence for pomeron single-quark interactions in proton diffraction at the ISR
- Source :
- Physics Letters B, Physics Letters B, Elsevier, 1985, 163, pp.267-272, Physics Letters B, 1985, 163, pp.267-272
- Publication Year :
- 1985
- Publisher :
- HAL CCSD, 1985.
-
Abstract
- Measurements are presented of two exclusive diffractive reactions, pp → (Λ 0 φ 0 K + ) p and pp → (Λ 0 Λ 0 p)p , at √ s = 63 GeV . Pronounced correlations with the beam direction are observed (in the rest frame of the forward-going bracketed system) for those outgoing particles which contain the beam valence quarks. In each case there is a forward-Λ0 in correlation with a backward K+ or p, respectively. No such behavior is seen for the particles which do not contain beam valence quarks (φ 0 and Λ 0 , respectively) . Interpreted as examples of pomeron-proton scattering, these results constitute evidence that, for these final states, the pomeron interacts with a single valence quark and apparently back-scatters it. The subsequent hadronization leads to a longitudinal event structure.
- Subjects :
- Physics
Nuclear and High Energy Physics
Particle physics
Proton
010308 nuclear & particles physics
High Energy Physics::Phenomenology
Hadron
Hyperon
Elementary particle
01 natural sciences
Hadronization
Baryon
Nuclear physics
Pomeron
0103 physical sciences
[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]
High Energy Physics::Experiment
010306 general physics
Nucleon
Particle Physics - Experiment
Subjects
Details
- Language :
- English
- ISSN :
- 03702693
- Database :
- OpenAIRE
- Journal :
- Physics Letters B, Physics Letters B, Elsevier, 1985, 163, pp.267-272, Physics Letters B, 1985, 163, pp.267-272
- Accession number :
- edsair.doi.dedup.....13a649cf22a4ee7201b5eb1459f09102