TY  - JOUR
A1  - Giacosa, Francesco
A1  - Pagliara, Giuseppe
T1  - (Oscillating) non-exponential decays of unstable states
T2  - Proceedings of Science
N2  - We discuss deviations from the exponential decay law which occur when going beyond the BreitWigner distribution for an unstable state. In particular, we concentrate on an oscillating behavior, remisiscent of the Rabi-oscillations, in the short-time region. We propose that these oscillations can explain the socalled GSI anomaly, which measured superimposed oscillations on top of the exponential law for hydrogen-like nuclides decaying via electron-capture. Moreover, we discuss the possibility that the deviations from the Breit-Wigner in the case of the GSI anomaly are (predominantely) caused by the interaction of the unstable state with the measurement apparatus. The consequences of this scenario, such as the non-observation of oscillations in an analogous experiment perfromed at Berkley, are investigated.
Y1  - 2012
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/27439
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-274390
UR  - https://pos.sissa.it/archive/conferences/160/028/Bormio2012_028.pdf
SN  - 1824-8039
N1  - © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.
VL  - 2012
IS  - (Bormio2012)028
SP  - 1
EP  - 10
PB  - SISSA
CY  - Trieste
ER  -