Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Standard Electroweak Interactions in Gravitational Theory with Chameleon
  Field and Torsion   We propose a version of a gravitational theory with the torsion field,
induced by the chameleon field. Following Hojman et al. Phys. Rev. D17, 3141
(1976) the results, obtained in Phys. Rev. D90, 045040 (2014), are generalised
by extending the Einstein gravity to the Einstein-Cartan gravity with the
torsion field as a gradient of the chameleon field through a modification of
local gauge invariance of minimal coupling in the Weinberg-Salam electroweak
model. The contributions of the chameleon (torsion) field to the observables of
electromagnetic and weak processes are calculated. Since in our approach the
chameleon-photon coupling constant beta_(gamma) is equal to the
chameleon-matter coupling constant beta, i.e. beta_(gamma) = beta, the
experimental constraints on beta, obtained in terrestrial laboratories by T.
Jenke et al. (Phys. Rev. Lett. 112, 115105 (2014)) and by H. Lemmel et al.
(Phys. Lett. B743, 310 (2015)), can be used for the analysis of astrophysical
sources of chameleons, proposed by C. Burrage et al. (Phys. Rev. D79, 044028
(2009)), A.-Ch. Davis et al. (Phys. Rev. D80, 064016 (2009), and in references
therein, where chameleons induce photons because of direct chameleon-photon
transitions in the magnetic fields.

35
The categories of this paper are: mtrl-th
14
The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio
18
The categories of this paper are: econ
29
The categories of this paper are: funct-an
17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
11
The categories of this paper are: hep-lat
9
The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
23
The categories of this paper are: solv-int
3
The categories of this paper are: physics
13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph
6
The categories of this paper are: astro-ph