Differential cross sections for {ital pp}{r_arrow}{ital pn}{pi}{sup +} near threshold

Journal Article · Mon Apr 10 04:00:00 EDT 1995 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.74.2913· OSTI ID:44860

Daehnick, W W; Dytman, S A; Hardie, J G; Brooks, W K; Flammang, R W ^[1]; Bland, L; Jacobs, W W; Rinckel, T ^[2]; Pancella, P V ^[3]; Brown, J D; Jacobson, E ^[4]

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1. Nuclear Physics Laboratory, University of Pittsburgh, Pittsburgh, Pennsylvania 15260 (United States)
2. Indiana University Cyclotron Facility, Bloomington, Indiana 47408 (United States)
3. Physics Department, Western Michigan University, Kalamazoo, Michigan 49007 (United States)
4. Physics Department, Princeton University, Princeton, New Jersey 08540 (United States)

Differential cross sections from kinematically complete measurements of {ital pp}{r_arrow}{ital pn}{pi}{sup +} production are presented for proton beam energies of 294.2, 299.5, and 319.5 MeV. Total cross sections are given for 294.2, 299.5, 306.5, 314.3, and 319.5 MeV. The two angular distributions close to threshold are dominated by {ital s} wave contributions. Total cross sections within the first 30 MeV of threshold show qualitative agreement with an early theoretical prediction based on PCAC.

• OSTI ID: 44860
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 15 Vol. 74; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ANGULAR DISTRIBUTION
DIFFERENTIAL CROSS SECTIONS
MEV RANGE 100-1000
NEUTRONS
PARTICLE PRODUCTION
PCAC THEORY
PERTURBATION THEORY
PIONS PLUS
PROTON-PROTON INTERACTIONS
QUANTUM CHROMODYNAMICS
S WAVES
TOTAL CROSS SECTIONS