FONTBONNE, C.; UJIĆ, P.; DE OLIVEIRA SANTOS, F.; FLÉCHARD, X.; ROTARU, F.; ACHOURI, N.L.; GIRARD ALCINDOR, V.; BASTIN, B.; BOULAY, F.; BRIAND, J.B.; SÁNCHEZ-BENÍTEZ, A.M.; BOUZOMITA, H.; BORCEA, C.; BORCEA, R.; BLANK, B.; CARNIOL, B.; ČELIKOVIĆ, I.; DELAHAYE, P.; DELAUNAY, F.; ETASSE, D.; FREMONT, G.; DE FRANCE, G.; FONTBONNE, J.M.; GRINYER, G.F.; HARANG, J.; HOMMET, J.; JEVREMOVIĆ, A.; LEWITOWICZ, M.; MARTEL, I.; MRAZEK, J.; PARLOG, M.; POINCHEVAL, J.; RAMOS, D.; SPITAELS, C.; STANOIU, M.; THOMAS, J.C.; TOPREK, D.

doi:10.1103/PhysRevC.96.065501

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FONTBONNE, C.
Laboratoire de physique corpusculaire de Caen [LPCC]

UJIĆ, P.

DE OLIVEIRA SANTOS, F.
Grand Accélérateur National d'Ions Lourds [GANIL]

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Phys.Rev.C. 2017, vol. 96, n° 6, p. 065501

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The half-life of Ne19 was measured using a real-time digital multiparametric acquisition system, providing an accurate time stamp and relevant information on the detector signals for each decay event. An exhaustive offline analysis of the data gave unique access to experimental effects potentially biasing the measurement. After establishing the influence factors impacting the measurement such as after-pulses, pile-up, gain, and baseline fluctuations, their effects were accurately estimated and the event selection optimized. The resulting half-life, 17.2569±0.0019(stat)±0.0009(syst) s, is the most precise up to now for Ne19. It is found to be in agreement with two recent precise measurements and not consistent with the most recent one [L. J. Broussard , Phys. Rev. Lett. 112, 212301 (2014)PRLTAO0031-900710.1103/PhysRevLett.112.212301] by 3.0 standard deviations. The full potential of the technique for nuclei with half-lives of a few seconds is discussed.< Leer menos

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24.80.+y

23.40.-s

12.15.Hh

12.60.-i

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High precision measurement of the $^{19}$Ne $\beta$-decay half-life using real-time digital acquisition

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