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Title: Missing and Spurious Level Corrections for Nuclear Resonances

Abstract

Neutron and proton resonances provide detailed level density information. However, due to experimental limitations, some levels are missed and some are assigned incorrect quantum numbers. The standard method to correct for missing levels uses the experimental widths and the Porter-Thomas distribution. Analysis of the spacing distribution provides an independent determination of the fraction of missing levels. We have derived a general expression for such an imperfect spacing distribution using the maximum entropy principle and applied it to a variety of nuclear resonance data. The problem of spurious levels has not been extensively addressed.

Authors:
; ; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
878631
Report Number(s):
UCRL-PROC-213541
TRN: US0602427
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Conference: Presented at: International Conference in Contemporary Physics, Ulaanbaatar, Mongolia, Aug 08 - Aug 15, 2005
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; DISTRIBUTION; ENERGY-LEVEL DENSITY; ENTROPY; NEUTRONS; PHYSICS; PORTER-THOMAS DISTRIBUTION; PROTONS; QUANTUM NUMBERS; RESONANCE

Citation Formats

Mitchell, G E, Agvaanluvsan, U, Pato, M P, and Shriner, J F. Missing and Spurious Level Corrections for Nuclear Resonances. United States: N. p., 2005. Web.
Mitchell, G E, Agvaanluvsan, U, Pato, M P, & Shriner, J F. Missing and Spurious Level Corrections for Nuclear Resonances. United States.
Mitchell, G E, Agvaanluvsan, U, Pato, M P, and Shriner, J F. Thu . "Missing and Spurious Level Corrections for Nuclear Resonances". United States. https://www.osti.gov/servlets/purl/878631.
@article{osti_878631,
title = {Missing and Spurious Level Corrections for Nuclear Resonances},
author = {Mitchell, G E and Agvaanluvsan, U and Pato, M P and Shriner, J F},
abstractNote = {Neutron and proton resonances provide detailed level density information. However, due to experimental limitations, some levels are missed and some are assigned incorrect quantum numbers. The standard method to correct for missing levels uses the experimental widths and the Porter-Thomas distribution. Analysis of the spacing distribution provides an independent determination of the fraction of missing levels. We have derived a general expression for such an imperfect spacing distribution using the maximum entropy principle and applied it to a variety of nuclear resonance data. The problem of spurious levels has not been extensively addressed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2005},
month = {6}
}

Conference:
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