Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Neutrinoless Double Beta Decay in Theories Beyond the Standard Model   Neutrinoless double beta decay pops up almost in any extension of the
standard model. It is perhaps the only process, which can unambiguously
determine whether the massive neutrinos are Majorana or Dirac type particles.
In addition from the lifetime of this decay, combined with sufficient knowledge
of the relevant nuclear matrix elements, one can set a constraint involving the
neutrino masses. Furthemore, if one incorporates the recent results of the
neutrino oscillation experiments, one can determine or set a stringent limit on
the neutrino mass scale. In addition one may obtain usefull information
regarding the presence of right handed currents and the right handed neutrino
mass scale. One can also constrain the parameters of supersymmetry and, in
particular, set limits in of R-parity violating couplings as well as get
information about extra dimensions.

19
The categories of this paper are: eess
3
The categories of this paper are: physics
11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
18
The categories of this paper are: econ
32
The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg
29
The categories of this paper are: funct-an
25
The categories of this paper are: patt-sol
10
The categories of this paper are: q-bio
4
The categories of this paper are: cond-mat
13
The categories of this paper are: quant-ph
12
The categories of this paper are: nucl-th
1
The categories of this paper are: cs
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph