New physics scale from Higgs observables with effective dimension-6 operators

Jana, Sudip; Nandi, S.

doi:10.1016/j.physletb.2018.06.038

Title: New physics scale from Higgs observables with effective dimension-6 operators

Abstract

No matter what the scale of new physics is, deviations from the Standard Model for the Higgs observables will indicate the existence of such a scale. We consider effective six dimensional operators, and their effects on the Higgs productions and decays to estimate this new scale. We analyze and identify the parameter space consistent with known properties of the Higgs boson using recent Run II results from ATLAS and CMS experiments corresponding to $$\sim$$ 37 fb$$^{-1}$$ of data. We then calculate the $$\bar{t} t h$$ productions , as well as double Higgs production at the LHC using the effective couplings, and show that these can be much different than those predicted by the Standard Model, for a wide region of allowed parameters space. These predictions can be tested in the current or the future runs of the LHC. We find that the data are consistent with the existence of a new physics scale as low as 500 GeV for a significant region of parameter space of this six-dimensional couplings with these new physics effects at the LHC. In conclusion, we also find that for some region of the parameter space, di-Higgs production can be much larger than that predicted by the Standard Model giving rise to the prospect of its observation even in the current run II of the LHC.

Authors:

;

Publication Date:: Wed Aug 01 00:00:00 EDT 2018

Research Org.:: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)

Sponsoring Org.:: USDOE Office of Science (SC), High Energy Physics (HEP)

OSTI Identifier:: 1456295

Alternate Identifier(s):: OSTI ID: 1495367

Report Number(s):: OSU-HEP-17-05; arXiv:1710.00619; FERMILAB-PUB-17-690-T
Journal ID: ISSN 0370-2693; S0370269318304945; PII: S0370269318304945

Grant/Contract Number:: de-sc0016013; AC02-07CH11359

Resource Type:: Published Article

Journal Name:: Physics Letters B

Additional Journal Information:: Journal Name: Physics Letters B Journal Volume: 783 Journal Issue: C; Journal ID: ISSN 0370-2693

Publisher:: Elsevier

Country of Publication:: Netherlands

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Higgs; LHC; Dimension-6

Citation Formats


                    Jana, Sudip, and Nandi, S. New physics scale from Higgs observables with effective dimension-6 operators.  Netherlands: N. p., 2018. 
Web.  doi:10.1016/j.physletb.2018.06.038.

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                    Jana, Sudip, & Nandi, S. New physics scale from Higgs observables with effective dimension-6 operators.  Netherlands.  https://doi.org/10.1016/j.physletb.2018.06.038

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                    Jana, Sudip, and Nandi, S. Wed .  
"New physics scale from Higgs observables with effective dimension-6 operators".  Netherlands.  https://doi.org/10.1016/j.physletb.2018.06.038.

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@article{osti_1456295,

  title        = {New physics scale from Higgs observables with effective dimension-6 operators},

  author       = {Jana, Sudip and Nandi, S.},

  abstractNote = {No matter what the scale of new physics is, deviations from the Standard Model for the Higgs observables will indicate the existence of such a scale. We consider effective six dimensional operators, and their effects on the Higgs productions and decays to estimate this new scale. We analyze and identify the parameter space consistent with known properties of the Higgs boson using recent Run II results from ATLAS and CMS experiments corresponding to $\sim$ 37 fb$^{-1}$ of data. We then calculate the $\bar{t} t h$ productions , as well as double Higgs production at the LHC using the effective couplings, and show that these can be much different than those predicted by the Standard Model, for a wide region of allowed parameters space. These predictions can be tested in the current or the future runs of the LHC. We find that the data are consistent with the existence of a new physics scale as low as 500 GeV for a significant region of parameter space of this six-dimensional couplings with these new physics effects at the LHC. In conclusion, we also find that for some region of the parameter space, di-Higgs production can be much larger than that predicted by the Standard Model giving rise to the prospect of its observation even in the current run II of the LHC.},

  doi          = {10.1016/j.physletb.2018.06.038},

  journal      = {Physics Letters B},

  number       = C,

  volume       = 783,

  place        = {Netherlands},

  year         = {Wed Aug 01 00:00:00 EDT 2018},

  month        = {Wed Aug 01 00:00:00 EDT 2018}

}

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Works referencing / citing this record:

Enhanced di-Higgs production in the two Higgs doublet model
journal, February 2019

Babu, K. S.; Jana, Sudip
Journal of High Energy Physics, Vol. 2019, Issue 2
DOI: 10.1007/jhep02(2019)193

Non-standard interactions in radiative neutrino mass models
journal, March 2020

Babu, K. S.; Dev, P. S. Bhupal; Jana, Sudip
Journal of High Energy Physics, Vol. 2020, Issue 3
DOI: 10.1007/jhep03(2020)006

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