Exclusive pion production from few nucleon systems in the region of the [Delta][sub 1232] resonance

Journal Article · Thu Sep 01 04:00:00 EDT 1994 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.50.1561· OSTI ID:6953358

Furutani, K M; Falk, W R; Guan, H; Campbell, J R ^[1]; Duncan, F A ^[2]; Walden, P L; Yen, S ^[3]; Huber, G M; Bent, R D ^[4]; Lolos, G J ^[5]; Korkmaz, E ^[6]; Trudel, A ^[7]; Celler, A ^[8]

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1. Department of Physics, University of Manitoba, Winnipeg, Manitoba, R3T 2N2 (Canada)
2. Department of Physics, University of British Columbia, Vancouver, British Columbia, V6T 2A6 (Canada)
3. TRIUMF, Vancouver, British Columbia, V6T 2A3 (Canada)
4. Indiana University Cyclotron Facility, Bloomington, Indiana 47405 (United States)
5. Department of Physics, University of Regina, Regina, Saskatchewan, S4S 0A2 (Canada)
6. Department of Physics, University of Alberta, Edmonton, Alberta, T6G 2N5 (Canada)
7. Department of Physics, Simon Fraser University, Vancouver, British Columbia, V6T 2A6 (Canada)
8. Department of Physics, University of Western Ontario, London, Ontario, T6G 2N5 (Canada)

Angular distributions of the differential cross sections and analyzing powers have been measured for the [sup 3]He([ital [rvec p]],[pi][sup +]) [sup 4]He and [sup 4]He([ital [rvec p]],[pi][sup +])[sup 5]He reactions at proton bombarding energies between 240 and 507 MeV. These new results provide a comprehensive set of data spanning the region of the [Delta][sub 1232] resonance and are compared with a phenomenological model that incorporates the amplitudes for the [ital pp][r arrow][ital d][pi][sup +] reaction, and with calculations from a microscopic ([ital p],[pi][sup +]) model. A [sup 5]He final state interaction calculation based upon the low energy [ital n]+[alpha] elastic phase shifts indicates that the [sup 4]He([ital p],[pi][sup +])[sup 5]He spectra are nearly independent of pion angle and proton energy. Comparisons made with the time reversed charge symmetric reaction [sup 3]H([ital n],[pi][sup [minus]])[sup 4]He reaction indicate substantial Coulomb effects are still present at 300 MeV.

• OSTI ID: 6953358
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 50:3; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

663110 -- General & Average Properties of Nuclei & Nuclear Energy Levels-- (1992-)
663300 -- Nuclear Reactions & Scattering
General-- (1992-)
663430* -- Nucleon-Induced Reactions & Scattering-- (1992-)
663510 -- Nuclear Mass Ranges-- A=1-5-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA DECAY RADIOISOTOPES
ANALYZING POWER
BARYON REACTIONS
BARYONS
BEAMS
BOSONS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DELTA BARYONS
DELTA-1232 BARYONS
DIFFERENTIAL CROSS SECTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FERMIONS
FINAL-STATE INTERACTIONS
HADRON REACTIONS
HADRONS
HELIUM 3 TARGET
HELIUM 4
HELIUM 4 TARGET
HELIUM 5
HELIUM ISOTOPES
INTERACTIONS
ISOTOPES
LIGHT NUCLEI
MESONS
MEV RANGE
MEV RANGE 100-1000
N BARYONS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
PARTICLE PRODUCTION
PIONS
PIONS PLUS
POLARIZED BEAMS
PROTON REACTIONS
PSEUDOSCALAR MESONS
RADIOISOTOPES
STABLE ISOTOPES
TARGETS