Torsion phenomenology at the CERN LHC
Torsion phenomenology at the CERN LHC
We explore the potential of the CERN Large Hadron Collider (LHC) to test the dynamical torsion parameters. The form of the torsion action can be established from the requirements of consistency of effective quantum field theory. The most phenomenologically relevant part of the torsion tensor is dual to a massive axial vector field. This axial vector has geometric nature, that means it does not belong to any representation of the gauge group of the SM extension or GUT theory. At the same time, torsion should interact with all fermions, that opens the way for the phenomenological applications.
We demonstrate that LHC collider can establish unique constraints on the interactions between fermions and torsion field considerably exceeding present experimental lower bounds on the torsion couplings and its mass. It is also shown how possible nonuniversal nature of torsion couplings due to the renormalization group running between the Planck and TeV energy scales can be tested via the combined analysis of Drell-Yan and tt? production processes.
34014
Belyaev, A.S.
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3
Shapiro, I.L.
b324fce2-a902-47cf-8940-546ad92d2e0d
do Vale, M.A.B.
c6a4d93e-ee98-4ced-89ec-e4085cdb34c9
23 February 2007
Belyaev, A.S.
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3
Shapiro, I.L.
b324fce2-a902-47cf-8940-546ad92d2e0d
do Vale, M.A.B.
c6a4d93e-ee98-4ced-89ec-e4085cdb34c9
Belyaev, A.S., Shapiro, I.L. and do Vale, M.A.B.
(2007)
Torsion phenomenology at the CERN LHC.
Physical Review D, 75 (3), .
(doi:10.1103/PhysRevD.75.034014).
Abstract
We explore the potential of the CERN Large Hadron Collider (LHC) to test the dynamical torsion parameters. The form of the torsion action can be established from the requirements of consistency of effective quantum field theory. The most phenomenologically relevant part of the torsion tensor is dual to a massive axial vector field. This axial vector has geometric nature, that means it does not belong to any representation of the gauge group of the SM extension or GUT theory. At the same time, torsion should interact with all fermions, that opens the way for the phenomenological applications.
We demonstrate that LHC collider can establish unique constraints on the interactions between fermions and torsion field considerably exceeding present experimental lower bounds on the torsion couplings and its mass. It is also shown how possible nonuniversal nature of torsion couplings due to the renormalization group running between the Planck and TeV energy scales can be tested via the combined analysis of Drell-Yan and tt? production processes.
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Published date: 23 February 2007
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Local EPrints ID: 141726
URI: http://eprints.soton.ac.uk/id/eprint/141726
ISSN: 1550-7998
PURE UUID: d61fbe07-f6ce-47cd-94b8-a175c5d8ac1c
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Date deposited: 24 May 2010 08:23
Last modified: 14 Mar 2024 02:52
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Author:
I.L. Shapiro
Author:
M.A.B. do Vale
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