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Limit on T-violating P-conserving rhoNN interaction from the gamma decay of Fe-57

Ressell, M. T. and Engel, J. and Vogel, P. (1996) Limit on T-violating P-conserving rhoNN interaction from the gamma decay of Fe-57. Physical Review C, 53 (5). pp. 2546-2549. ISSN 0556-2813. http://resolver.caltech.edu/CaltechAUTHORS:RESprc96

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Abstract

We use the experimental limit on the interference of M1 and E2 multipoles in the γ decay of 57Fe to bound the time-reversal-violating parity-conserving ρNN vertex. Our approach is a large-basis shell-model calculation of the interference. We find an upper limit on the parameter g¯ρ, the relative strength of the T-violating ρNN vertex, of close to 10^(-2), a value similar to the best limits from other experiments.


Item Type:Article
Additional Information:©1996 The American Physical Society. Received 5 December 1995. We thank David Resler for several helpful discussions and help with the modifications to the code CRUNCHER. This work was supported in part by the U.S. Department of Energy under Grants DE-FG05-94ER40827 and DE-FG03-88ER-40397 and by the U.S. National Science Foundation under Grants PHY94-12818 and PHY94-20470. M.T.R. is supported by the Weingart Foundation. Part of the computing was carried out at Lawrence Livermore National Laboratory, operated under the auspices of the U.S. Department of Energy under Grant W-7405-ENG-48.
Subject Keywords:TIME-REVERSAL INVARIANCE; SHELL; ISOTOPES
Record Number:CaltechAUTHORS:RESprc96
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:RESprc96
Alternative URL:http://dx.doi.org/10.1103/PhysRevC.53.2546
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:7220
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:18 Jan 2007
Last Modified:26 Dec 2012 09:30

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