Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Most attractive channel for self-breaking of grand unification group
  symmetry   Most attractive channel is studied for SU(5) grand unified theory in five
dimensions where 5* and 10 fermions and a 24 gauge boson propagate in the bulk.
If there are bulk fermions with zero mode for the chirality opposite to quark
and lepton multiplets, they can contribute to forming 5, 24, 50 and 75 scalar
bound states. We find that the inclusion of a simple anomaly-free set for zero
mode yields scalar bound states whose binding strengths are the largest for 24
and the second largest for 5. This corresponds to the breaking pattern of the
SU(5) to color and electromagnetism via the standard model gauge group.

28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph
9
The categories of this paper are: nlin
30
The categories of this paper are: q-alg
35
The categories of this paper are: mtrl-th
37
The categories of this paper are: supr-con
19
The categories of this paper are: eess
24
The categories of this paper are: dg-ga
15
The categories of this paper are: nucl-ex
31
The categories of this paper are: ao-sci
3
The categories of this paper are: physics
22
The categories of this paper are: chao-dyn