Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Extended set of Majorana spinors, a new dispersion relation, and a
  preferred frame   We aspire to fufill Majorana's original goal of bringing full symmetry
between the charged and fundamentally neutral particles. We present a
description of fundamentally neutral particles without any reliance on Dirac
spinors. We show that the extended set Majorana spinors (a) describe a Wigner
class of fermions in which the charge conjugation and the parity operators
commute, rather than anticommute, and (b) support two type of dispersion
relations, the usual E= pm sqrt{p^2+m^2}, and a new E=- 2m \pm sqrt{p^2+m^2}.
The latter may be preferred over the former on minimization of energy
requirement and offers a natural source for observed matter-antimatter
asymmetry in the universe. The ensuing physical interpretation requires
existence of a preferred frame which may be identified with the cosmic neutrino
background.

19
The categories of this paper are: eess
6
The categories of this paper are: astro-ph
20
The categories of this paper are: acc-phys
28
The categories of this paper are: alg-geom
13
The categories of this paper are: quant-ph
23
The categories of this paper are: solv-int
34
The categories of this paper are: chem-ph
16
The categories of this paper are: stat
18
The categories of this paper are: econ
10
The categories of this paper are: q-bio
31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
32
The categories of this paper are: atom-ph