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Triple-differential cross sections of the ( ,pp) reaction on lithium isotopes

Journal Article · · Phys. Rev. C; (United States)
; ; ; ; ; ; ; ; ;
The ( ,pp) reactions on WLi and XLi have been studied at T/sub / = 59.4 MeV with high resolution. The first triple-differential cross sections for these reactions are presented. The data are fitted to a T matrix and compared to the d pp reaction. A model in which the pion is absorbed on a TS1 (pn) pair in the lithium nucleus describes many features of the data very well. An extrapolation of our data into unmeasured regions of phase space suggests that about 60% of the pion absorption cross section on WLi at 59.4 MeV goes into the ( ,pp) channel. One surprising feature of the data is that the WLi( ,pp)UHe (2 ) transition at 22.1 MeV excitation is strongly populated, similar to what is observed in the WLi(d, ) UHe reaction. This transition involves removing one nucleon from the 1p shell and one from the 1s shell.
Research Organization:
Carnegie-Mellon University, Pittsburgh, Pennsylvania 15213
OSTI ID:
6325642
Journal Information:
Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 33:2; ISSN PRVCA
Country of Publication:
United States
Language:
English

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Related Subjects

651325* -- Nuclear Properties & Reactions
A=6-19
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCELERATORS
ANGULAR MOMENTUM
BARYONS
CAPTURE
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY RANGE
EVEN-EVEN NUCLEI
FERMIONS
HADRON REACTIONS
HADRONS
HELIUM 4
HELIUM ISOTOPES
ISOTOPES
LAMPF LINAC
LIGHT NUCLEI
LINEAR ACCELERATORS
LITHIUM 6 TARGET
LITHIUM 7 TARGET
MATHEMATICAL MODELS
MATHEMATICAL SPACE
MATRICES
MESON FACTORIES
MESON REACTIONS
MEV RANGE
MEV RANGE 10-100
MONTE CARLO METHOD
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
PARITY
PARTICLE PROPERTIES
PHASE SPACE
PION PLUS REACTIONS
PION REACTIONS
PROTONS
S MATRIX
SHELL MODELS
SPACE
SPIN
STABLE ISOTOPES
TARGETS