# Heavy Higgs boson with a light sneutrino next-to-lightest supersymmetric particle in the MSSM with enhanced SU(2) D-terms.

## Abstract

The minimal supersymmetric extension of the standard model provides a solution to the hierarchy problem and leads to the presence of a light Higgs. A Higgs boson with mass above the present experimental bound may only be obtained for relatively heavy third generation squarks, requiring a precise, somewhat unnatural balance between different contributions to the effective Higgs mass parameter. It was recently noticed that somewhat heavier Higgs bosons, which are naturally beyond the CERN LEP bound, may be obtained by enhanced weak SU(2) D-terms. Such contributions appear in models with an enhanced electroweak gauge symmetry, provided the supersymmetry breaking masses associated with the scalars responsible for the breakdown of the enhanced gauge symmetry group to the standard model one are larger than the enhanced symmetry breaking scale. In this article we emphasize that the enhanced SU(2) D-terms will not only raise the Higgs boson mass but also affect the spectrum of the nonstandard Higgs bosons, sleptons, and squarks, which therefore provide a natural contribution to the T parameter, compensating for the negative one coming from the heavy Higgs boson. The sleptons and nonstandard Higgs bosons of these models, in particular, may act in a way similar to the so-called inertmore »

- Authors:

- Publication Date:

- Research Org.:
- Argonne National Lab. (ANL), Argonne, IL (United States)

- Sponsoring Org.:
- USDOE Office of Science (SC); Bloomenthal Research Fellowship

- OSTI Identifier:
- 985126

- Report Number(s):
- ANL-HEP-PR-09-15

Journal ID: 1550-7998; TRN: US1006082

- DOE Contract Number:
- DE-AC02-06CH11357

- Resource Type:
- Journal Article

- Journal Name:
- Phys. Rev. D

- Additional Journal Information:
- Journal Volume: 80; Journal Issue: 2009

- Country of Publication:
- United States

- Language:
- ENGLISH

- Subject:
- 43 PARTICLE ACCELERATORS; BREAKDOWN; HIGGS BOSONS; LEP STORAGE RINGS; SCALARS; SPARTICLES; STANDARD MODEL; SUPERSYMMETRY; SYMMETRY; SYMMETRY BREAKING; SYMMETRY GROUPS

### Citation Formats

```
Medina, A D, Shah, N R, Wagner, C E. M., High Energy Physics, Univ. of California at Davis, and Univ. of Chicago.
```*Heavy Higgs boson with a light sneutrino next-to-lightest supersymmetric particle in the MSSM with enhanced SU(2) D-terms.*. United States: N. p., 2009.
Web. doi:10.1103/PhysRevD.80.015001.

```
Medina, A D, Shah, N R, Wagner, C E. M., High Energy Physics, Univ. of California at Davis, & Univ. of Chicago.
```*Heavy Higgs boson with a light sneutrino next-to-lightest supersymmetric particle in the MSSM with enhanced SU(2) D-terms.*. United States. https://doi.org/10.1103/PhysRevD.80.015001

```
Medina, A D, Shah, N R, Wagner, C E. M., High Energy Physics, Univ. of California at Davis, and Univ. of Chicago. Thu .
"Heavy Higgs boson with a light sneutrino next-to-lightest supersymmetric particle in the MSSM with enhanced SU(2) D-terms.". United States. https://doi.org/10.1103/PhysRevD.80.015001.
```

```
@article{osti_985126,
```

title = {Heavy Higgs boson with a light sneutrino next-to-lightest supersymmetric particle in the MSSM with enhanced SU(2) D-terms.},

author = {Medina, A D and Shah, N R and Wagner, C E. M. and High Energy Physics and Univ. of California at Davis and Univ. of Chicago},

abstractNote = {The minimal supersymmetric extension of the standard model provides a solution to the hierarchy problem and leads to the presence of a light Higgs. A Higgs boson with mass above the present experimental bound may only be obtained for relatively heavy third generation squarks, requiring a precise, somewhat unnatural balance between different contributions to the effective Higgs mass parameter. It was recently noticed that somewhat heavier Higgs bosons, which are naturally beyond the CERN LEP bound, may be obtained by enhanced weak SU(2) D-terms. Such contributions appear in models with an enhanced electroweak gauge symmetry, provided the supersymmetry breaking masses associated with the scalars responsible for the breakdown of the enhanced gauge symmetry group to the standard model one are larger than the enhanced symmetry breaking scale. In this article we emphasize that the enhanced SU(2) D-terms will not only raise the Higgs boson mass but also affect the spectrum of the nonstandard Higgs bosons, sleptons, and squarks, which therefore provide a natural contribution to the T parameter, compensating for the negative one coming from the heavy Higgs boson. The sleptons and nonstandard Higgs bosons of these models, in particular, may act in a way similar to the so-called inert Higgs doublet. The phenomenological properties of these models are emphasized, and possible cosmological implications as well as collider signatures are described.},

doi = {10.1103/PhysRevD.80.015001},

url = {https://www.osti.gov/biblio/985126},
journal = {Phys. Rev. D},

number = 2009,

volume = 80,

place = {United States},

year = {2009},

month = {1}

}