Measurement of the sup 12 C(p,. pi. sup 0 ) sup 13 N sub g. s. reaction using recoil detection

Conference · Wed Apr 10 04:00:00 EDT 1991 · AIP Conference Proceedings (American Institute of Physics); (United States)

OSTI ID:5463824

Homolka, J; Schott, W; Wagner, W; Wilhelm, W ^[1]; Bent, R D; Fatyga, M; Pollock, R E ^[2]; Saber, M; Segel, R E ^[3]; Kienle, P ^[4]; Rehm, K E ^[5]

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1. Physik Department, Technische Universitaet Muenchen (DE)
2. Indiana University Cyclotron Facility, Bloomington, Indiana 47405 (USA)
3. Northwestern University, Evanston, Illinois 60201 (USA)
4. Gesellschaft fuer Schwerionenforschung, Darmstadt, Germany (DE)
5. Argonne National Laboratory, Argonne, Illinois 60439 (USA)

Cross sections for the reaction {sup 12}C(p,{pi}{sup 0}){sup 13}N{sub {ital g}.{ital s}.} have been measured at 153.5, 166.1, 186.0 and 204.0 MeV bombarding energy by detection of the {sup 13}N recoil ions. The shapes of the differential cross section angular distributions agree well with those for the {sup 12}C(p,{pi}{sup +}){sup 13}C{sub {ital g}.{ital s}.} reaction obtained by pion detection. The ratio of the (p,{pi}{sup +}) to (p,{pi}{sup 0}) total cross section is close to two, as expected from isospin invariance, at 153.5, 186.0 and 204.0 MeV, but deviates significantly from this at 166.1 MeV bombarding energy. The (p,{pi}{sup +}) and (p,{pi}{sup 0}) cross sections at the lower energies are both larger than expected from an extrapolation of the higher energy data.

• OSTI ID: 5463824
• Report Number(s): CONF-9009332--
• Conference Information: Journal Name: AIP Conference Proceedings (American Institute of Physics); (United States) Journal Volume: 221:1
• Country of Publication: United States
• Language: English

Related Subjects

651320* -- Nuclear Properties & Reactions
A=6-19
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCELERATORS
ANGULAR DISTRIBUTION
BARYON REACTIONS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
BOSONS
CAPTURE
CARBON 12 TARGET
CARBON 13
CARBON ISOTOPES
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
CYCLIC ACCELERATORS
CYCLOTRONS
DIFFERENTIAL CROSS SECTIONS
DISTRIBUTION
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTARY PARTICLES
ENERGY RANGE
EVEN-ODD NUCLEI
HADRON REACTIONS
HADRONS
ISOCHRONOUS CYCLOTRONS
ISOSPIN
ISOTOPES
IU CYCLOTRON
LIGHT NUCLEI
MESONS
MEV RANGE
MEV RANGE 100-1000
MINUTES LIVING RADIOISOTOPES
NITROGEN 13
NITROGEN ISOTOPES
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
ODD-EVEN NUCLEI
PARTICLE PRODUCTION
PARTICLE PROPERTIES
PIONS
PIONS NEUTRAL
PIONS PLUS
PROTON REACTIONS
PSEUDOSCALAR MESONS
RADIOISOTOPES
RECOILS
STABLE ISOTOPES
TARGETS
TOTAL CROSS SECTIONS