Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Visible neutrino decay in the light of appearance and disappearance long
  baseline experiments   We investigate the present constraints from MINOS and T2K experiments for the
neutrino decay scenario induced by non-diagonal couplings of Majorons to
neutrinos. As novelty, on top of the typical invisible decay prescription, we
add the contribution of visible decay, where final products can be observed.
This new effect depends on the nature of the neutrino - Majoron coupling, which
can be of scalar or pseudoscalar type. Using the combination of disappearance
data from MINOS and disappearance and appearance data from T2K, for normal
ordering, we constrain the decay parameter $\alpha\equiv E\,\Gamma$ for the
heaviest neutrino, where $E$ and $\Gamma$ are the neutrino energy and width,
respectively. We find that when considering visible decay within appearance
data, one can improve current neutrino long-baseline constraints up to $\alpha<
\mathcal{O}(10^{-5})$ eV$^2$, at 90\% C.L., for both kinds of couplings, which
is better by one order of magnitude compared to previous bounds.

28
The categories of this paper are: alg-geom
14
The categories of this paper are: math-ph
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
15
The categories of this paper are: nucl-ex
34
The categories of this paper are: chem-ph
29
The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
19
The categories of this paper are: eess
32
The categories of this paper are: atom-ph
18
The categories of this paper are: econ
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
2
The categories of this paper are: math
16
The categories of this paper are: stat