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A direct determination of the energy release for the 3α breakup of the second-excited state of ^(12)C

Barnes, C. A. and Nichols, Davis B. (1973) A direct determination of the energy release for the 3α breakup of the second-excited state of ^(12)C. Nuclear Physics A, 217 (1). pp. 125-140. ISSN 0375-9474. doi:10.1016/0375-9474(73)90627-1. https://resolver.caltech.edu/CaltechAUTHORS:20150909-112606009

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Abstract

The energy difference between the second-excited state of ^(12)C and three α-particles has been determined by implanting ^(12)B ions within a silicon surface-barrier detector, and observing the pulses from the 3α decay of the second-excited state of ^(12)C, formed in ≈ 1.5% of the ^(12)B decays. The result obtained, Q = 379.6 ± 2.0 keV is in good agreement with that obtained by measuring the excitation energy of the ^(12)C second-excited state and then subtracting three times the mass excess of an α-particle. The combined result from the present work and three recent excitation measurements is Q = 380.1 ± 1.1 keV.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/0375-9474(73)90627-1DOIArticle
http://www.sciencedirect.com/science/article/pii/0375947473906271PublisherArticle
Additional Information:© 1973 Published by Elsevier B.V. Received 13 September 1973. Supported in part by the National Science Foundation [GP-280271. The authors would like to thank Professors William A. Fowler and T. Lauritsen for many helpful conversations. We are also grateful to B. A. Zimmerman, G. Fox and N. M. Denkin for their invaluable assistance with the computations of the electron energy-loss effects.
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Funding AgencyGrant Number
NSFGP-28027
Subject Keywords:Radioactivity
Issue or Number:1
DOI:10.1016/0375-9474(73)90627-1
Record Number:CaltechAUTHORS:20150909-112606009
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20150909-112606009
Official Citation:C.A. Barnes, Davis B. Nichols, A direct determination of the energy release for the 3α breakup of the second-excited state of 12C, Nuclear Physics A, Volume 217, Issue 1, 17 December 1973, Pages 125-140, ISSN 0375-9474, http://dx.doi.org/10.1016/0375-9474(73)90627-1. (http://www.sciencedirect.com/science/article/pii/0375947473906271
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:60131
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:11 Sep 2015 04:49
Last Modified:10 Nov 2021 22:30

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