Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Space-Like Particle Production: an Interpretation Based on the Majorana
  Equation   This study reconsiders the decay of an ordinary particle in bradyons,
tachyons and luxons in the field of the relativistic quantum mechanics. Lemke
already investigated this from the perspective of covariant kinematics. Since
the decay involves both spacelike and timelike particles, the study uses the
Majorana equation for particles with an arbitrary spin. The equation describes
the tachyonic and bradyonic realms of massive particles, and approaches the
problem of how spacelike particles might develop. This method confirms the
kinematic constraints that Lemke theory provided and proves that some possible
decays are more favourable than others are.

16
The categories of this paper are: stat
28
The categories of this paper are: alg-geom
0
The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph
18
The categories of this paper are: econ
12
The categories of this paper are: nucl-th
37
The categories of this paper are: supr-con
19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
31
The categories of this paper are: ao-sci
25
The categories of this paper are: patt-sol
33
The categories of this paper are: plasm-ph
22
The categories of this paper are: chao-dyn
1
The categories of this paper are: cs
27
The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc