CaltechAUTHORS
  A Caltech Library Service

A study of low-lying T = 3/2 and T = 2 states in some light nuclei (I)

Adelberger, E. G. and McDonald, A. B. and Barnes, C. A. (1969) A study of low-lying T = 3/2 and T = 2 states in some light nuclei (I). Nuclear Physics A, 124 (1). pp. 49-84. ISSN 0375-9474. https://resolver.caltech.edu/CaltechAUTHORS:20150908-150520567

Full text is not posted in this repository. Consult Related URLs below.

Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20150908-150520567

Abstract

We have employed (^3He, n) double-stripping reactions to locate low-lying T = 3/2 and T = 2 states in several light nuclei. Accurate values for the excitation energies of these states were obtained using a high-resolution time-of-flight spectrometer. The identifications are based upon the intensities of transitions, upper limits on level widths and spin and parity assignments inferred from the shapes of angular distributions. The following levels were studied: 1.(i) Isospin 3/2 levels in ^(13)N were located at excitation energies of 15.068±0.008 MeV (Γ < 15 keV), 18.44±0.04 MeV and 18.98±0.02 MeV (Γ = 40±20 keV) in a study of the ^(11)B(^3He, n) reaction at incident energies up to 13.5 MeV. 2.(ii) Isospin 3/2 levels in ^(17)F were observed at excitation energies of 11.195±0.007 MeV (Γ < 20 keV), 12.540±0.010 MeV (Γ < 25 keV) and 13.059±0.009 MeV (Γ < 25 keV) in a study of the ^(15)N(^3He, n) reaction at incident energies up to 11.9 MeV. 3.(iii) Isospin 3/2 levels in ^(21)Na were observed at excitation energies of 8.99±0.05 MeV and 9.221±0.015 MeV (Γ < 40 keV) in a study of the ^(19)F(^3He, n) reaction at incident energies up to 10.0 MeV. 4.(iv) The excitation energy of the lowest T = 2 state in ^(20)Ne was measured to be 16.730±0.006 MeV (Γ < 20 keV) in a study of the ^(18)O(^3He, n) reaction at incident energies up to 9.0 MeV. 5.(v) The excitation energy of the lowest T = 2 state in ^(24)Mg was measured to be 15.441±0.015 MeV (Γ < 35 keV) in a study of the ^(22)Ne(^3He, n) reaction at incident energies up to 9.5 MeV.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/0375-9474(69)90520-XDOIArticle
http://www.sciencedirect.com/science/article/pii/037594746990520XPublisherArticle
https://resolver.caltech.edu/CaltechTHESIS:11022015-134907826Related ItemCaltech PhD Thesis
Additional Information:© 1969 Published by Elsevier B.V. Available online 26 October 2002. Work supported in part by the Office of Naval Research [Nonr-220(47)) and the National Science Foundation [GP-9114 and GP-7976]. We would like to extend our thanks to Drs. Bassel, Drisko and Satchler for the use of their computer code TSALLY. One of us (ABM) would like to express his gratitude for assistance in the form of a National Research Council of Canada Scholarship.
Funders:
Funding AgencyGrant Number
Office of Naval ResearchNonr-220(47)
NSFGP-9114
NSFGP-7976
National Research Council of CanadaUNSPECIFIED
Subject Keywords:Nuclear Reactions ^(11)B, ^(15)N, ^(18)O, ^(19)F, ^(22)Ne(^3He, n), E = 4.2-13.5 MeV; E measured σ(E_n, θ). ^(13)N, ^(17)F, ^(20)Ne, ^(21)Na, ^(24)Mg deduced levels, T, Γ, J, π, L. Enriched targets.
Issue or Number:1
Record Number:CaltechAUTHORS:20150908-150520567
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20150908-150520567
Official Citation:A study of low-lying T = 32 and T = 2 states in some light nuclei (I) Original Research Article Pages 49-84 E.G. Adelberger, A.B. McDonald, C.A. Barnes
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:60103
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:09 Sep 2015 19:29
Last Modified:12 May 2020 22:07

Repository Staff Only: item control page