Abstract
The reaction has been studied with a 94% enriched O target, a 17-MeV triton beam, and a multiangle magnetic spectrograph. Proton groups from the () reaction on and in the target served for energy calibration. An average of data at four angles gives a value of -4809 ± 15 keV, from which the mass excess of is calculated to be 25,077.5 ± 15 keV. Excited states of are found at 2089 ± 20, (2712 ± 20, tentative), 4559 ± 25, and 5703 ± 25 keV. The mass excess of , plus earlier data for , , gives a value of keV for the coefficient of the cubic term in the isobaric multiplet mass equation.
NUCLEAR STRUCTURE : measured values for proton groups in reaction; derived mass excess, of excited states, IMME coefficients.
- Received 9 August 1978
DOI:https://doi.org/10.1103/PhysRevC.18.2727
©1978 American Physical Society