T-Anomaly Induced LHC Signals

Details T-Anomaly Induced LHC Signals T-Anomaly Induced LHC Signals

2007-07-24

arxiv.org/abs/0707.3648v3

Phys.Lett.B655:228-235,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages, 7 figures, 2 tables; Label in Fig.1 corrected, references added; Graphic quality of figures improved

Scientific paper

10.1016/j.physletb.2007.08.090

$\cal T$-parity in the Little Higgs model could be violated by anomalies that allow the lightest $\cal T$-odd $A_H$ to decay into $ZZ$ and $W^+W^-$. We analyze these anomaly induced decays and the two-particle and the three-particle decay modes of other heavy quarks and bosons in this model which yield unique Large Hadron Collider (LHC) signals with fully reconstructable events. $\cal T$-odd quarks in the Little Higgs model are nearly degenerate in mass and they decay by almost identical processes; however, members of the heavy Higgs triplet follow distinct decay modes. The branching fractions of three-body decays increase with the global symmetry-breaking energy scale $f$ and are found to be at the level of a few percent in heavy quark decays while they can reach up to 10% for heavy bosons.

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