DSA lifetime measurements of 124Cs and the time-reversal symmetry

A hypothesis of the chiral symmetry breaking opened a new opportunity for the study of spontaneous time-reversal symmetry breaking in an atomic nucleus. The occurence of chirality has been found in 126,128Cs nuclei for which specific electromagnetic selection rules have been found in Doppler Shift A...

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Published inJournal of physics. Conference series Vol. 381; no. 1
Main Authors Grodner, E, Pasternak, A A, Srebrny, J, Kowalczyk, M, Mierzejewski, J, Kisieliński, M, Decowski, P, Droste, Ch, Perkowski, J, Abraham, T, Andrzejewski, J, Hadyńska-Klek, K, Janiak, Kasparek, A, Marchlewski, T, Napiorkowski, P, Samorajczyk, J
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 18.09.2012
Subjects
Attenuation
Broken symmetry
Chirality
Doppler effect
Heavy ions
Nuclei (nuclear physics)
Physics
Symmetry
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Summary:A hypothesis of the chiral symmetry breaking opened a new opportunity for the study of spontaneous time-reversal symmetry breaking in an atomic nucleus. The occurence of chirality has been found in 126,128Cs nuclei for which specific electromagnetic selection rules have been found in Doppler Shift Attenuation experiments. Here, recent DSA measurements in the 124Cs nucleus are presented. The 124Cs nucleus was produced in the 114Cd(14N,4n)124Cs reaction at Heavy Ion Laboratory of the University of Warsaw. The obtained results agree with basic expectations deduced from the chiral symmetry breaking. A connection between the chirality phenomenon and the time-reversal symmetry is discussed and a possibility of using chiral doublets for studies of fundamental time reversal symmetry is suggested.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/381/1/012067