[Triumf-seminars] TRIUMF ISAC Seminar today at 15:15

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Date/Time: Wed 2006-03-29 at 15:15

Location:  Auditorium          

Speaker:   Goetz Ruprecht (TRIUMF)

Title:     The influence of electron screening on lifetimes

Abstract: Recent publications [1] indicate a possible strong influence of electron screening on the decay of unstable nuclei if they are embedded in a metallic environment; even a temperature dependence was proposed. The estimates are based on observations of enhanced electron screening in d+d reactions [2] if the target deuterons are hosted in a metal. In this talk, 3 aspects of the electron screening will be discussed
- The experimental difficulties and pitfalls when measuring screening in metallic environments
- The models describing this effect and their limits
- The conclusions when these models are applied to nuclear decays.
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[1] F. Raiola et al., J. Phys. G 31 (2005) 1141
     C. Rolfs, public lecture at SLENA 2006, Kolkata, India
[2] K. Czerski et al., Europhys. Lett. 68 (2004) 363




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