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Enhancements of weak gauge boson scattering processes at the CERN LHC

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Abstract

Current CERN Large Hadron Collider data on the 126 GeV standard model-like Higgs boson suggest the possibility of larger Higgs boson couplings with the weak gauge bosons, g hVV , than those in the standard model. We use the Georgi-Machacek model as an explicit model to realize such a scenario. We find that the g hVV couplings can be larger than the standard model value by a factor of about 1.3 maximally in the parameter region consistent with the current Higgs boson search data and allowed by various other constraints. We then show how the modified g hVV couplings lead to enhancements in various weak boson scattering processes. This can be clearly observed as excesses in the transverse mass distributions at around 126 GeV and also the mass of heavy Higgs bosons.

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Authors and Affiliations

  1. Department of Physics and Center for Mathematics and Theoretical Physics, National Central University, 300 Zhengda Rd, Chungli, Taiwan, 32001, R.O.C

    Cheng-Wei Chiang, An-Li Kuo & Kei Yagyu

  2. Institute of Physics, Academia Sinica, 128 Sec. 2, Academia Rd, Taipei, Taiwan, 11529, R.O.C

    Cheng-Wei Chiang

  3. Physics Division, National Center for Theoretical Sciences, 101 Sec. 2, Kuangfu Rd, Hsinchu, Taiwan, 30013, R.O.C

    Cheng-Wei Chiang

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  1. Cheng-Wei Chiang
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  2. An-Li Kuo
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Correspondence to Cheng-Wei Chiang.

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ArXiv ePrint: 1307.7526

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Chiang, CW., Kuo, AL. & Yagyu, K. Enhancements of weak gauge boson scattering processes at the CERN LHC. J. High Energ. Phys. 2013, 72 (2013). https://doi.org/10.1007/JHEP10(2013)072

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