# 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:

- Research Org.:
- Fermi National Accelerator Lab. (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.
```

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

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

```
@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 = {2018},

month = {8}

}

DOI: 10.1016/j.physletb.2018.06.038

*Citation information provided by*

Web of Science

Web of Science

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

##
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