sup 3 He and sup 4 He production by 800 MeV protons from sup 12 C, Ti, and Pb at forward angles

Journal Article · Wed Jan 01 00:00:00 EST 1992 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.45.293· OSTI ID:5134044

Barlow, D B; Nefkens, B M.K.; Pillai, C; Price, J W; Slaus, I; Wang, M J; Wightman, J A ^[1]; Jones, K W; Leitch, M J; Mishra, C S; Morris, C L; Peng, J ^[2]; Teng, P K ^[3]; Tinsley, J M ^[4]

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1. University of California, Los Angeles, California 90024 (United States)
2. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
3. Institute of Physics, Academia Sinica, Nankang (Taiwan)
4. Arizona State University, Tempe, Arizona 85281 (United States)

The doubly differential cross section for the production of {sup 3}He and {sup 4}He by 800 MeV protons from {sup 12}C, Ti, and Pb has been measured at laboratory angles of 6{degree} and 15{degree}. The momentum of the detected helium nuclei varied from 1 to 2 GeV/{ital c}, the maximum being well above the incident proton momentum of 1.46 GeV/{ital c}. The cross sections were found to increase with increasing target mass and decrease with increasing momentum and scattering angle. In our momentum region, the {sup 3}He production cross section is 1.5--10 times larger than {sup 4}He depending on the target and the momentum. The data are consistent with the hypothesis that the dominant reaction mechanism is a direct process where the initial nucleon-nucleon scattering is followed by a sequential pickup of neutrons.

• OSTI ID: 5134044
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Vol. 45:1; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CARBON 12 TARGET
PROTON REACTIONS
LEAD
NUCLEAR FRAGMENTATION
TITANIUM
DIFFERENTIAL CROSS SECTIONS
EXPERIMENTAL DATA
HELIUM 3
HELIUM 4
MEV RANGE 100-1000
THREE-NUCLEON TRANSFER REACTIONS
TWO-NUCLEON TRANSFER REACTIONS
BARYON REACTIONS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA
DIRECT REACTIONS
ELEMENTS
ENERGY RANGE
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
HADRON REACTIONS
HELIUM ISOTOPES
INFORMATION
ISOTOPES
LIGHT NUCLEI
METALS
MEV RANGE
MULTI-NUCLEON TRANSFER REACTIONS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUMERICAL DATA
STABLE ISOTOPES
TARGETS
TRANSFER REACTIONS
TRANSITION ELEMENTS
663430* - Nucleon-Induced Reactions & Scattering- (1992-)