Evidence for two-nucleon processes in A(p/sub pol/,. pi. /sup -/)A+1

Journal Article · Mon Sep 20 04:00:00 EDT 1982 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.49.855· OSTI ID:6712450

Jacobs, W W; Throwe, T G; Vigdor, S E; Green, M C; Hall, J R; Meyer, H O; Pitts, W K; Dillig, M

Possible signatures of two-nucleon pion production processes in reactions A(p/sub pol/,..pi../sup -/)A+1 near threshold are identified: a dependence of the analyzing power on the total angular momentum, and a simple scaling of the cross section with subshell occupancy for the struck target neutron. Measurements for /sup 12,13,14/C(p/sub pol/,..pi../sup -/) exhibit these expected features, supporting the view that the fundamental NN..-->..NN..pi.. processes dominate in nuclear pion production.

• Research Organization: Indiana University Cyclotron Facility, Bloomington, Indiana 47405
• OSTI ID: 6712450
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 49:12; ISSN PRLTA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANALYZING POWER
ANGULAR MOMENTUM
BARYON REACTIONS
BEAMS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
BOSONS
CAPTURE
CARBON 12 TARGET
CARBON 13 TARGET
CARBON 14 TARGET
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
HADRON REACTIONS
HADRONS
ISOTOPES
LIGHT NUCLEI
MATHEMATICAL MODELS
MESONS
MEV RANGE
MEV RANGE 100-1000
MINUTES LIVING RADIOISOTOPES
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
OXYGEN 13
OXYGEN 14
OXYGEN 15
OXYGEN ISOTOPES
PARTICLE PRODUCTION
PIONS
PIONS MINUS
POLARIZED BEAMS
PROTON REACTIONS
PSEUDOSCALAR MESONS
RADIOISOTOPES
SHELL MODELS
TARGETS