# General No-Scale Supergravity: An $\mathcal{F}$ -SU(5) tale

## Abstract

Here, we study the grand unification model flipped *SU*(5) with additional vector-like particle multiplets, or $\mathcal{F}$-SU(5) for short, in the framework of General No-Scale Supergravity. In our analysis we allow the supersymmetry (SUSY) breaking soft terms to be generically non-zero, thereby extending the phenomenologically viable parameter space beyond the highly constrained one-parameter version of $\mathcal{F}$-SU(5). In this initial inquiry, the mSUGRA/CMSSM SUSY breaking terms are implemented. We find this easing away from the vanishing SUSY breaking terms enables a more broad mass range of vector-like particles, dubbed flippons, including flippons less than 1 TeV that could presently be observed at the LHC2, as well as a lighter gluino mass and SUSY spectrum overall. This presents heightened odds that the General No-Scale $\mathcal{F}$-SU(5) viable parameter space can be probed at the LHC2. The phenomenology comprises both bino and higgsino dark matter, including a Higgs funnel region. Particle states emerging from the SUSY cascade decays are presented to experimentally distinguish amongst the diverse phenomenological regions.

- Authors:

- Publication Date:

- Research Org.:
- Texas A&M Univ., College Station, TX (United States)

- Sponsoring Org.:
- USDOE

- OSTI Identifier:
- 1358464

- Alternate Identifier(s):
- OSTI ID: 1465394

- Grant/Contract Number:
- FG02-13ER42020; SC0010813

- Resource Type:
- Published Article

- Journal Name:
- Physics Letters B

- Additional Journal Information:
- Journal Name: Physics Letters B Journal Volume: 771 Journal Issue: C; Journal ID: ISSN 0370-2693

- Publisher:
- Elsevier

- Country of Publication:
- Netherlands

- Language:
- English

- Subject:
- 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

### Citation Formats

```
Hu, Dingli, Li, Tianjun, Lux, Adam, Maxin, James A., and Nanopoulos, Dimitri V. General No-Scale Supergravity: An F -SU(5) tale. Netherlands: N. p., 2017.
Web. doi:10.1016/j.physletb.2017.05.056.
```

```
Hu, Dingli, Li, Tianjun, Lux, Adam, Maxin, James A., & Nanopoulos, Dimitri V. General No-Scale Supergravity: An F -SU(5) tale. Netherlands. doi:10.1016/j.physletb.2017.05.056.
```

```
Hu, Dingli, Li, Tianjun, Lux, Adam, Maxin, James A., and Nanopoulos, Dimitri V. Tue .
"General No-Scale Supergravity: An F -SU(5) tale". Netherlands. doi:10.1016/j.physletb.2017.05.056.
```

```
@article{osti_1358464,
```

title = {General No-Scale Supergravity: An F -SU(5) tale},

author = {Hu, Dingli and Li, Tianjun and Lux, Adam and Maxin, James A. and Nanopoulos, Dimitri V.},

abstractNote = {Here, we study the grand unification model flipped SU(5) with additional vector-like particle multiplets, or F-SU(5) for short, in the framework of General No-Scale Supergravity. In our analysis we allow the supersymmetry (SUSY) breaking soft terms to be generically non-zero, thereby extending the phenomenologically viable parameter space beyond the highly constrained one-parameter version of F-SU(5). In this initial inquiry, the mSUGRA/CMSSM SUSY breaking terms are implemented. We find this easing away from the vanishing SUSY breaking terms enables a more broad mass range of vector-like particles, dubbed flippons, including flippons less than 1 TeV that could presently be observed at the LHC2, as well as a lighter gluino mass and SUSY spectrum overall. This presents heightened odds that the General No-Scale F-SU(5) viable parameter space can be probed at the LHC2. The phenomenology comprises both bino and higgsino dark matter, including a Higgs funnel region. Particle states emerging from the SUSY cascade decays are presented to experimentally distinguish amongst the diverse phenomenological regions.},

doi = {10.1016/j.physletb.2017.05.056},

journal = {Physics Letters B},

number = C,

volume = 771,

place = {Netherlands},

year = {2017},

month = {8}

}

DOI: 10.1016/j.physletb.2017.05.056