Decays of the lowest <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>T</mi><mo>=</mo><mn>2</mn><mn></mn></math> states in <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>A</mi><mo>=</mo><mn>4</mn><mi>N</mi></math> nuclei from <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">Be</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>8</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math> to <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">Ti</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>44</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math>

S. J. Freedman; C. A. Gagliardi; M. A. Oothoudt; A. V. Nero; R. G. H. Robertson; F. J. Zutavern; E. G. Adelberger; A. B. McDonald

doi:10.1103/PhysRevC.19.1907

Decays of the lowest $T = 2$ states in $A = 4 N$ nuclei from ${}^{8}{Be}$ to ${}^{44}{Ti}$

S. J. Freedman, C. A. Gagliardi, M. A. Oothoudt, A. V. Nero, R. G. H. Robertson, F. J. Zutavern, E. G. Adelberger, and A. B. McDonald

Phys. Rev. C 19, 1907 – Published 1 April 1979

Abstract

Branching ratios for isospin-forbidden decays have been measured for the lowest $T = 2$ levels in ${}^{8}{Be}$ , ${}^{12}C$ , ${}^{16}O$ , ${}^{24}{Mg}$ , ${}^{28}{Si}$ , ${}^{32}S$ , ${}^{36}{Ar}$ , ${}^{40}{Ca}$ , and ${}^{44}{Ti}$ . The $T = 2$ levels were populated by the isospin allowed ( $p$ , $t$ ) reaction at $E_{p} = 42 or 46$ MeV. Coincidences were observed between tritons detected in a quadrupole-dipole-dipole-dipole magnetic spectrometer and decay particles detected in a surface-barrier detector telescope, a time-of-flight neutron detector, or an NaI (Tl) $γ$ -ray detector. Systematics of isospin-forbidden decay widths are discussed.

NUCLEAR STRUCTURE ${}^{8}{Be}$ , ${}^{12}C$ , ${}^{16}O$ , ${}^{24}{Mg}$ , ${}^{28}{Si}$ , ${}^{32}S$ , ${}^{36}{Ar}$ , ${}^{40}{Ca}$ , ${}^{44}{Ti}$ ; lowest $J^{π} = 0^{+}$ , $T = 2$ level; measured isospin-forbidden particle-decay branching ratios.

Received 11 December 1978

DOI:https://doi.org/10.1103/PhysRevC.19.1907

Authors & Affiliations

S. J. Freedman^*, C. A. Gagliardi, M. A. Oothoudt^†, A. V. Nero^‡, R. G. H. Robertson^§, and F. J. Zutavern

Princeton University, Princeton, New Jersey 08540

E. G. Adelberger

University of Washington, Seattle, Washington 98195

A. B. McDonald

Atomic Energy of Canada Limited, AECL, Chalk River Nuclear Laboratories, Chalk River, Canada, KOJ 1JO

^*Present address: Department of Physics, Stanford University, Stanford, California 94305.
^†Present address: LAMPF, Los Alamos Scientific Lab., Los Alamos, N. M. 87545.
^‡Present address: Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720.
^§Present address: Department of Physics, Michigan State University, East Lansing, Michigan 48824.

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Vol. 19, Iss. 5 — April 1979

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