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Title: Spectroscopy of 215Rn86

Abstract

The yrast level structure of 215,216Rn has been studied using in beam spectroscopy {alpha} - {gamma} - {gamma} coincidence techniques mainly through the 207Pb(18O, 2{alpha}2n) and 208Pb(18O, 2{alpha}2n) reactions in the 91-93 MeV energy range, using the 8{pi} GASP-ISIS spectrometer at Legnaro. The obtained low lying level scheme of 215Rn does not exhibit the alternating parity structure observed in their heavier known isotones 216Fr, 217Ra and 218Ac. The level scheme of 216Rn resulting from this study shows >From this result, the lightest nucleus showing evidence for reflection asymmetry is 216Fr defining one lowest-mass corner for this kind of phenomenon as N{>=}129 and Z{>=}87.

Authors:
 [1];  [2]; ; ;  [1];  [2]; ;  [1];  [2];  [2];  [3];  [4]
  1. Departamento de Fisica, Comision Nacional de Energia Atomica, 1429 Buenos Aires (Argentina)
  2. (Argentina)
  3. INFN, Laboratori Nazionali di Legnaro, 35020 Legnaro (Italy)
  4. Dipartimento di Fisica, Sezione di Padova, Padova (Italy)
Publication Date:
OSTI Identifier:
21054863
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 884; Journal Issue: 1; Conference: 6. Latin American symposium on nuclear physics and applications, Iguazu (Argentina), 3-7 Oct 2005; Other Information: DOI: 10.1063/1.2710625; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ACTINIUM 218; ASYMMETRY; ENERGY-LEVEL TRANSITIONS; FRANCIUM 216; GAMMA SPECTROSCOPY; IN-BEAM SPECTROSCOPY; ISOTONIC NUCLEI; LEAD 207 TARGET; LEAD 208 TARGET; MEV RANGE; NUCLEAR STRUCTURE; OXYGEN 18 REACTIONS; PARITY; RADIUM 217; RADON 215; RADON 216; YRAST STATES

Citation Formats

Debray, M. E., Escuela de Ciencia y Tecnologia, Universidad de San Martin, 1650 San Martin, Buenos Aires, Davidson, M., Davidson, J., Hojman, D., CONICET, 1033 Buenos Aires, Kreiner, A. J., Cardona, M. A., Escuela de Ciencia y Tecnologia, Universidad de San Martin, 1650 San Martin, Buenos Aires, CONICET, 1033 Buenos Aires, Lenzi, S., and Napoli, D.. Spectroscopy of 215Rn86. United States: N. p., 2007. Web. doi:10.1063/1.2710625.
Debray, M. E., Escuela de Ciencia y Tecnologia, Universidad de San Martin, 1650 San Martin, Buenos Aires, Davidson, M., Davidson, J., Hojman, D., CONICET, 1033 Buenos Aires, Kreiner, A. J., Cardona, M. A., Escuela de Ciencia y Tecnologia, Universidad de San Martin, 1650 San Martin, Buenos Aires, CONICET, 1033 Buenos Aires, Lenzi, S., & Napoli, D.. Spectroscopy of 215Rn86. United States. doi:10.1063/1.2710625.
Debray, M. E., Escuela de Ciencia y Tecnologia, Universidad de San Martin, 1650 San Martin, Buenos Aires, Davidson, M., Davidson, J., Hojman, D., CONICET, 1033 Buenos Aires, Kreiner, A. J., Cardona, M. A., Escuela de Ciencia y Tecnologia, Universidad de San Martin, 1650 San Martin, Buenos Aires, CONICET, 1033 Buenos Aires, Lenzi, S., and Napoli, D.. Mon . "Spectroscopy of 215Rn86". United States. doi:10.1063/1.2710625.
@article{osti_21054863,
title = {Spectroscopy of 215Rn86},
author = {Debray, M. E. and Escuela de Ciencia y Tecnologia, Universidad de San Martin, 1650 San Martin, Buenos Aires and Davidson, M. and Davidson, J. and Hojman, D. and CONICET, 1033 Buenos Aires and Kreiner, A. J. and Cardona, M. A. and Escuela de Ciencia y Tecnologia, Universidad de San Martin, 1650 San Martin, Buenos Aires and CONICET, 1033 Buenos Aires and Lenzi, S. and Napoli, D.},
abstractNote = {The yrast level structure of 215,216Rn has been studied using in beam spectroscopy {alpha} - {gamma} - {gamma} coincidence techniques mainly through the 207Pb(18O, 2{alpha}2n) and 208Pb(18O, 2{alpha}2n) reactions in the 91-93 MeV energy range, using the 8{pi} GASP-ISIS spectrometer at Legnaro. The obtained low lying level scheme of 215Rn does not exhibit the alternating parity structure observed in their heavier known isotones 216Fr, 217Ra and 218Ac. The level scheme of 216Rn resulting from this study shows >From this result, the lightest nucleus showing evidence for reflection asymmetry is 216Fr defining one lowest-mass corner for this kind of phenomenon as N{>=}129 and Z{>=}87.},
doi = {10.1063/1.2710625},
journal = {AIP Conference Proceedings},
number = 1,
volume = 884,
place = {United States},
year = {Mon Feb 12 00:00:00 EST 2007},
month = {Mon Feb 12 00:00:00 EST 2007}
}