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Title: Torsion phenomenology at the CERN LHC

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.

Authors:
 [1];  [2];  [3];  [4]
  1. Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824 (United States)
  2. Departamento de Fisica - ICE, Universidade Federal de Juiz de Fora, Juiz de Fora, 36036-330, MG (Brazil)
  3. (Russian Federation)
  4. Departamento de Ciencias Naturais, Universidade Federal de Sao Joao del Rei, Sao Joao del Rei, 36301-160, MG (Brazil)
Publication Date:
OSTI Identifier:
21010990
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 75; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevD.75.034014; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ACTION INTEGRAL; CERN LHC; DRELL MODEL; FERMIONS; PARTICLE IDENTIFICATION; PARTICLE INTERACTIONS; RENORMALIZATION; REST MASS; STANDARD MODEL; T QUARKS; TEV RANGE; TORSION; VECTOR FIELDS

Citation Formats

Belyaev, A. S., Shapiro, I. L., Tomsk State Pedagogical University, and Vale, M. A. B. do. Torsion phenomenology at the CERN LHC. United States: N. p., 2007. Web. doi:10.1103/PHYSREVD.75.034014.
Belyaev, A. S., Shapiro, I. L., Tomsk State Pedagogical University, & Vale, M. A. B. do. Torsion phenomenology at the CERN LHC. United States. doi:10.1103/PHYSREVD.75.034014.
Belyaev, A. S., Shapiro, I. L., Tomsk State Pedagogical University, and Vale, M. A. B. do. Thu . "Torsion phenomenology at the CERN LHC". United States. doi:10.1103/PHYSREVD.75.034014.
@article{osti_21010990,
title = {Torsion phenomenology at the CERN LHC},
author = {Belyaev, A. S. and Shapiro, I. L. and Tomsk State Pedagogical University and Vale, M. A. B. do},
abstractNote = {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.},
doi = {10.1103/PHYSREVD.75.034014},
journal = {Physical Review. D, Particles Fields},
number = 3,
volume = 75,
place = {United States},
year = {Thu Feb 01 00:00:00 EST 2007},
month = {Thu Feb 01 00:00:00 EST 2007}
}