Production of hht and htT in the littlest Higgs model with T parity

Journal Article · Sun Apr 01 04:00:00 EDT 2007 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.75.074006· OSTI ID:21020266

Lei, Wang; Wenyu, Wang ^[1]; Jinmin, Yang ^[2]; Huanjun, Zhang ^[1]

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1. Institute of Theoretical Physics, Academia Sinica, Beijing 100080 (China)
2. CCAST (World Laboratory), P.O. Box 8730, Beijing 100080 (China)

In the littlest Higgs model with T parity, which predicts a pair of T-even and T-odd partners for the top quark, the top-quark interactions are altered with respect to the standard model predictions and the deviation will manifest in various top-quark processes. In this work we examine the effects in htt productions at the International Linear Collider and CERN LHC. We find that, in the allowed parameter space, the cross sections can be significantly deviated from the standard model predictions and thus provide a good test for the littlest Higgs model with T parity. We also examine the new production channel, htT or hTt production, at the LHC, which gives the same final states as htt production due to the dominant decay T{yields}Wb. We find that, compared with htt production, this new production channel can have a sizable production rate for a T quark below the TeV scale. Such a production will be counted into htt events or possibly extracted from htt events, depending on if we can distinguish the T quark from the top quark from mass reconstructions.

• OSTI ID: 21020266
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 7 Vol. 75; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CERN LHC
CROSS SECTIONS
HIGGS MODEL
LINEAR COLLIDERS
PARITY
PARTICLE DECAY
PARTICLE PRODUCTION
REST MASS
STANDARD MODEL
T QUARKS
TEV RANGE