High-precision measurement of half-life and Q(alpha) value of neutral and highly charged alpha emitters is a major subject of investigation currently. In this framework, we recently pushed half-life measurements of neutral emitters to a precision of a few per mil. This result was achieved by using different techniques and apparatuses at Istituto Nazionale di Fisica Nucleare Laboratori Nazionali del Sud (INFN-LNS) and GSI Darmstadt. Here we report on Fr-213 half-life determination [T-1/2(Fr-213) = 34.14 +/- 0.06 s] at INFN-LNS, detailing the measurement protocol used. Direct comparison with the accepted value in the literature shows a discrepancy of more than three sigma. We propose this new value as a reference, discussing previous experiments.

Determination of the half-life of Fr-213 with high precision

STRANO, EMANUELE
2013

Abstract

High-precision measurement of half-life and Q(alpha) value of neutral and highly charged alpha emitters is a major subject of investigation currently. In this framework, we recently pushed half-life measurements of neutral emitters to a precision of a few per mil. This result was achieved by using different techniques and apparatuses at Istituto Nazionale di Fisica Nucleare Laboratori Nazionali del Sud (INFN-LNS) and GSI Darmstadt. Here we report on Fr-213 half-life determination [T-1/2(Fr-213) = 34.14 +/- 0.06 s] at INFN-LNS, detailing the measurement protocol used. Direct comparison with the accepted value in the literature shows a discrepancy of more than three sigma. We propose this new value as a reference, discussing previous experiments.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11577/2757914
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