Probing anomalous couplings using di-Higgs production in electron–proton collisions

Mukesh Kumar (National Institute for Theoretical Physics, School of Physics, Mandelstam Institute for Theoretical Physics, University of the Witwatersrand, Wits 2050, Johannesburg, South Africa) ; Xifeng Ruan (University of the Witwatersrand, School of Physics, Private Bag 3, Wits 2050, South Africa) ; Rashidul Islam (Department of Physics, University of Calcutta, 92, Acharya Prafulla Chandra Road, Kolkata, 700009, India) ; Alan S. Cornell (National Institute for Theoretical Physics, School of Physics, Mandelstam Institute for Theoretical Physics, University of the Witwatersrand, Wits 2050, Johannesburg, South Africa) ; Max Klein (Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom) ; et al. - Show all 7 authors

A proposed high energy Future Circular Hadron-Electron Collider would provide sufficient energy in a clean environment to probe di-Higgs production. Using this channel we show that the azimuthal angle correlation between the missing transverse energy and the forward jet is a very good probe for the non-standard hhh and hhWW couplings. We give the exclusion limits on these couplings as a function of integrated luminosity at a 95% C.L. using the fiducial cross sections. With appropriate error fitting methodology we find that the Higgs boson self coupling could be measured to be ghhh(1)=1.00−0.17(0.12)+0.24(0.14) of its expected Standard Model value at s=3.5(5.0) TeV for an ultimate 10 ab−1 of integrated luminosity.

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      "value": "A proposed high energy Future Circular Hadron-Electron Collider would provide sufficient energy in a clean environment to probe di-Higgs production. Using this channel we show that the azimuthal angle correlation between the missing transverse energy and the forward jet is a very good probe for the non-standard hhh and hhWW couplings. We give the exclusion limits on these couplings as a function of integrated luminosity at a 95% C.L. using the fiducial cross sections. With appropriate error fitting methodology we find that the Higgs boson self coupling could be measured to be ghhh(1)=1.00\u00e2\u0088\u00920.17(0.12)+0.24(0.14) of its expected Standard Model value at s=3.5(5.0)\u00c2 TeV for an ultimate 10\u00c2 ab\u00e2\u0088\u00921 of integrated luminosity."
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Published on:
24 November 2016
Publisher:
Elsevier
Published in:
Physics Letters B (2016)

DOI:
https://doi.org/10.1016/j.physletb.2016.11.039
Copyrights:
The Author(s)
Licence:
CC-BY-3.0

Fulltext files: