Exclusive photodisintegration of [sup 3]He with polarized photons

Journal Article · Mon Jul 18 04:00:00 EDT 1994 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.73.408· OSTI ID:7142260

Tedeschi, D J; Adams, G S; Audit, G; Baghaei, H; Caracappa, A; Clayton, W B; D'Angelo, A; Duval, M A; Giordano, G; Hoblit, S; Kistner, O C; Laget, J M; Lindgren, R; Matone, G; Miceli, L; Mize, W K; Moinester, M; Ruth, C; Sandorfi, A; Schaerf, C ; Sealock, R M; Smith, L C; Stoler, P; Teng, P K; Thorn, C E; Thornton, S T; Vaziri, K; Whisnant, C S; Winhold, E J ^[1]

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1. Physics Department; Brookhaven National Laboratory; Upton; New York 11973 (United States) Istituto Nazionale di Fisica Nucleare-Laboratori Nazionali di Frascati; Frascati (Italy) Physics Department; Rensselaer Polytechnic Institute; Troy; New York 12180-3590 (United States) Istituto Nazionale di Fisica Nucleare and University of Rome Tor Vergata; Via della Ricerca Scientifica; 00133 Rome (Italy) Institute of Physics; Academia Sinica; Taipai (Taiwan; Province of China) Department of Physics; University of South Carolina; Columbia; South Carolina 29208 (United States) School of Physics and Astronomy; Tel

The first measurement of exclusive photodisintegration of [sup 3]He with polarized photons is reported. Cross sections and asymmetries for [sup 3]He([rvec ]gg,[ital pn])[ital p] and [sup 3]He([rvec ]gg,[ital pp])[ital n] at 235[le][ital E][sub [gamma]][le]305 MeV are compared to a theoretical calculation which includes one-, two-, and three-nucleon photon absorption. Two-nucleon absorption dominates the [ital pn] data, but is suppressed in the [ital pp] data. The [ital pp] data require the inclusion of three-nucleon absorption to describe the cross section and beam asymmetry over all momenta.

• DOE Contract Number: AC02-76CH00016
• OSTI ID: 7142260
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 73:3; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

663410* -- Photonuclear Reactions & Photon Scattering-- (1992-)
663510 -- Nuclear Mass Ranges-- A=1-5-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ABSORPTION
ANGULAR DISTRIBUTION
ASYMMETRY
BARYONS
BEAMS
COINCIDENCE METHODS
COUNTING TECHNIQUES
CROSS SECTIONS
DISTRIBUTION
ELEMENTARY PARTICLES
EVEN-ODD NUCLEI
EXCLUSIVE INTERACTIONS
FERMIONS
HADRONS
HELIUM 3
HELIUM ISOTOPES
INTERACTIONS
ISOTOPES
LIGHT NUCLEI
NEUTRONS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
PARTICLE INTERACTIONS
PHOTON BEAMS
PHOTONUCLEAR REACTIONS
POLARIZED BEAMS
PROTONS
SORPTION
STABLE ISOTOPES