High Energy Physics - 750 GeV

New submissions [more]

[1]  arXiv:2303.8291 [ps, pdf, other]
Title: A New Look at the NMSSM Inspired by the Diphoton Peak
Authors: K. Aydemir, J. Park
Comments: v2: 2 pages
Subjects: High Energy Physics - Phenomenology (hep-ph)

Just recently, ATLAS and CMS have measured an excess in run 2 of the LHC. The phenomenology of little Higgs is considered and we derive the statistical significance. Curiously, the $\eta$ couples not only to $hh$, but also to $hh$. Neutralinos at 400 GeV should be observed soon. We leave the rest for future study.

[2]  arXiv:2303.9301 [ps, pdf, other]
Title: The 750 GeV Peak: A Pion in Flipped SU(5) Models
Authors: Y. Sengupta
Comments: v3: 47 pages
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)

In this letter, we talk about the recent diphoton peak at run 2 (at 2.6 sigma). While the $\gamma\gamma$ resonance could be a statistical fluctuation, we analyze the 750 GeV excess in two Higgs doublet models. Moreover, the resonance is produced in elastic scattering and decays to two photons. Assuming the 750 GeV excess is real, we predict that colored pions should be at 300 GeV. More data is likely to confirm this essential structure.

[3]  arXiv:2303.9750 [ps, pdf, other]
Title: A New Take on GUT Models Inspired by the $\gamma\gamma$ Resonance
Authors: C. Harland-Lang
Comments: 21 pages
Subjects: High Energy Physics - Phenomenology (hep-ph)

ATLAS and CMS have just observed an excess in the second run of the LHC at 3.8 sigma. We consider the phenomenology of Georgi-Machacek models and calculate production rates. Consequently, the flavor symmetry stabilizes the mass of the $\eta$. New strong dynamics at 900 GeV should be observed soon. Finally, neutral fermions are added to folded SUSY to allow for the diphoton peak.

[4]  arXiv:2303.5590 [ps, pdf, other]
Title: Interpretations of the Diphoton Resonance in Composite Twin Higgs
Authors: V. Royon
Comments: v3: added refs, added refs, minor corrections
Subjects: High Energy Physics - Phenomenology (hep-ph)

ATLAS and CMS have just seen a resonance in run 2 at 2.1 sigma. The $\gamma\gamma$ excess is analyzed in left-right models with neutral fermions. Actually, the resonance is produced in photon fusion and decays to the diphoton channel. We predict a pseudo Nambu Goldstone boson below 700 GeV. Our results are similar to work done by Cao and Mandal.

[5]  arXiv:2303.9261 [ps, pdf, other]
Title: Connecting the 750 GeV Resonance and the Strong CP Problem
Authors: D. Urbano, D. Ellis
Comments: v2: 24 pages, added refs
Subjects: High Energy Physics - Phenomenology (hep-ph)

In december, ATLAS and CMS have reported a peak in run 2. Curiously, we study the $\gamma\gamma$ excess in gauge-extended models on a D3-brane. A downside of this model is that $WW$ and $ZZ$ are predicted to be enormous. Quite simply, we expect scalar singlet above 700 GeV. We will provide more details in a future paper.

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