Govaerts, Jan
[UCL]
Van Hove, Pierre M.
Deutsch, Jules
(eng)
An anomaly in the time behaviour of the signals observed by the KARMEN
Collaboration may be interpreted as the possible decay signature of a 33.9
MeV/c$^2$ mainly sterile neutrino. This note discusses the parameter space
still open for the mixing of this hypothetical particle with the neutrinos of
known leptonic flavour, considering the experimental results which became
available recently, as well as those to be expected from forthcoming
measurements. It is concluded that if no positive signature is observed, the
envisaged laboratory experiments are not expected to close enterily the
parameter space of mixing amplitudes. However, a proper reassessment of the
ALEPH upper bound on the $\nu_\tau$ neutrino mass including the possibility of
$\tau$ flavour mixing, would certainly help in reducing the parameter space
left open.
Comment: LaTeX file, 11 pages, one figure available on request
Bibliographic reference |
Govaerts, Jan ; Van Hove, Pierre M. ; Deutsch, Jules. Laboratory constraints on a 33.9-MeV/c**2 isosinglet neutrino: Status and perspectives. In: Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. B389, p. 700-706 (1996) |
Permanent URL |
http://hdl.handle.net/2078/31596 |