Speaker
Karol Lang
Description
The NEMO-3 experiment, located in the Modane Underground Laboratory,
is searching for neutrinoless double beta decay since 2003. We will
present the latest results for seven isotopes used on NEMO-3: 48Ca,
96Zr, 82Se, 100Mo, 116Cd, 130Te and 150Nd. We observe
no evidence for neutrinoless double beta decay and based on 100Mo
data set an upper limit on the effective Majorana neutrino mass
to be in the range 0.45 - 0.90 meV, depending on the nuclear
matrix element. NEMO-3 data can also be interpreted in terms of
alternative transition models, such as weak right-handed currents
or Majoron emission.
SuperNEMO is a next-generation experiment exploiting
the successful tracking plus calorimetry technology
of the NEMO-3 experiment. SuperNEMO will use about
100 kg of 82Se and is designed to reach sensitivity
to a half-life greater 10**26 years. We will briefly
describe main challenges before SuperNEMO and
the current status of the project.
