ANGULAR DISTRIBUTIONS OF PROTON GROUPS FROM THE Al$sup 27$(n,p)Mg$sup 27$ REACTION AT 14 Mev
ABS>A study was made of the high-energy proton groups from the Al/sup 27/ (n,p)Mg/sup 27/ reaction at 14 Mev with emulsion detectors, continuous survey being made in the interval 10 deg -70 deg (lab system). Proton groups corresponding to the residual Mg/sup 27/ nucleus left in the ground state and at excitations of these groups are characterized by a pronounced peaking in forward directions characteristic of direct interaction processes. The protons leading to the ground-state form a peak in the vicinity of 30 deg , those to the 1.0-Mev level at 36 deg , and those to the 1.6-Mev level at about 50 deg . The 3.5Mev group is not resolved from known close-lying levels and the cluster exhibits an isotropic distribution. The 2.1Mev and 2.8-Mev groups, corresponding to no previously reported levels in Mg/sup 27/, also display an isotropic distribution and probably represent several unresolved levels. The three lowest-lying levels shown approximate fits to theoretical curves consistent with reactions proceeding either by direct collision or by excitation of collective modes. (auth)
- Research Organization:
- Brown Univ., Providence
- NSA Number:
- NSA-14-003022
- OSTI ID:
- 4204162
- Journal Information:
- Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 115; ISSN PHRVA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
Similar Records
A STUDY OF THE REACTION Al$sup 27$(p,/cap alpha/)Mg$sup 2$$sup 4$
INVESTIGATION ON THE ANGULAR DISTRIBUTION OF PROTONS FROM THE Al$sup 27$($alpha$,p)Si$sup 30$ REACTION