Anomalous gtt couplings in the littlest Higgs model with T-parity

Journal Article · Thu Jan 01 04:00:00 EST 2009 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.79.015004· OSTI ID:21254732

Qinghong, Cao ^[1]; Chuanren, Chen; Yuan, C -P ^[2]; Larios, F ^[3]

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1. Department of Physics and Astronomy, University of California at Riverside, Riverside, California 92521 (United States)
2. Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824 (United States)
3. Departamento de Fisica Aplicada, CINVESTAV-Merida, A.P. 73, 97310 Merida, Yucatan (Mexico)

In this work we calculate the leading electroweak (EW) corrections to the anomalous gtt coupling in the littlest Higgs model with T-parity, by applying the Goldstone boson equivalence theorem. In the littlest Higgs model with T-parity model, such electroweak corrections arise from the loop diagrams of heavy fermions and the 'would-be' Goldstone bosons. We further examine the EW corrections in the top quark pair production via the quark annihilation process at the LHC. The negative EW corrections in the standard model are partially canceled by the positive EW corrections from the loops of the new heavy particles, and the latter dominates in the large invariant mass of the top quark pair.

• OSTI ID: 21254732
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 1 Vol. 79; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANNIHILATION
CERN LHC
CORRECTIONS
COUPLING
GOLDSTONE BOSONS
HIGGS MODEL
MASS
PAIR PRODUCTION
PARITY
STANDARD MODEL
T QUARKS
WEINBERG-SALAM GAUGE MODEL