QEC value of the superallowed β emitter 42Sc

6533b870fe1ef96bd12d0891

RESEARCH PRODUCT

QEC value of the superallowed β emitter 42Sc

Tommi Eronen J. C. Hardy Laetitia Canete Ari Jokinen Jani Hakala Anu Kankainen Veli Kolhinen Jukka Koponen Iain Moore I. M. Murray Heikki Penttilä Ilkka Pohjalainen O. Poleshchuk Juuso Reinikainen Sami Rinta-antila N. Soukouti Annika Voss Juha ÄYstö

subject

Ion Traps (Instrumentation)astrofysiikka superallowed emitters Antiprotons Atomic Weights ydinfysiikka atomipainot

description

The QEC value of the superallowed β+ emitter Sc42 has been measured with the JYFLTRAP Penning-trap mass spectrometer at the University of Jyväskylä to be 6426.350(53) keV. This result is at least a factor of four more precise than all previous measurements, which were also inconsistent with one another. As a byproduct we determine the excitation energy of the 7+ isomeric state in Sc42 to be 616.762(46) keV, which deviates by 8σ from the previous measurement. peerReviewed

year	journal	country	edition	language
2017-01-01

http://urn.fi/URN:NBN:fi:jyu-201702141436

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