Publication: Possible new resonance from W_L W_L-hh interchannel coupling
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2015-06-04
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American Physical Society
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Abstract
We propose and theoretically study a possible new resonance caused by strong coupling between the Higgs-Higgs and the W_LW_L (Z_L Z_L) scattering channels, without regard to the intensity of the elastic interaction in either channel at low energy (that could be weak as in the standard model). We expose this channel-coupling resonance from unitarity and dispersion relations encoded in the inverse amplitude method, applied to the electroweak chiral Lagrangian with a scalar Higgs boson.
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© 2015 American Physical Society. We thank J. R. Pelaez for discussion. A. D. and R. L. D. thank, respectively, the CERN TH-unit and the HEP group at the University of Southampton (NEXT institute) for their hospitality. This work was supported by the Spanish Grants No. UCM:910309, No. MINECO:FPA2014-53375-C2-1-P, No. MINECO:FPA2011-27853-C02-01, and No. BES-2012-056054 (R. L. D.).
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