Measurement of the mass of C8 by the N14(He3, Li9) reaction

R. G. H. Robertson, W. Benenson, E. Kashy, and D. Mueller
Phys. Rev. C 13, 1018 – Published 1 March 1976
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Abstract

The mass of the particle-unstable Tz=2 nuclide C8 has been measured by means of the N14(He3, Li9) reaction, which has an observed cross section of about 5 nb sr1 at 76 MeV. The mass excess found is 35.06 ± 0.05 MeV, and the width of the C8 ground state is 290 ± 80 keV. The result for the mass excess is more precise than that obtained in a previous (α,He8) experiment and confirms that significant higher-order terms must be added to the isobaric multiplet mass equation to describe the mass-8 isobaric quintet.

NUCLEAR REACTIONS N14(He3, Li9), E=76 MeV; measured Q, σ(θ). C8 obtained mass, Γ. Deduced a, b, c, d, e coefficients in IMME.

  • Received 12 December 1975

DOI:https://doi.org/10.1103/PhysRevC.13.1018

©1976 American Physical Society

Authors & Affiliations

R. G. H. Robertson

  • Cyclotron Laboratory and Physics Department, Michigan State University, East Lansing, Michigan 48824
  • Joseph Henry Laboratories, Princeton University, Princeton, New Jersey 08540

W. Benenson, E. Kashy, and D. Mueller

  • Cyclotron Laboratory and Physics Department, Michigan State University, East Lansing, Michigan 48824

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Issue

Vol. 13, Iss. 3 — March 1976

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