High Energy Physics - 750 GeV

New submissions [more]

[1]  arXiv:2112.4009 [ps, pdf, other]
Title: Spin-3/2? Calculating the Diphoton Rate in Minimal Composite Higgs
Comments: v2: updated figure 1, conclusions unchanged
Subjects: High Energy Physics - Phenomenology (hep-ph)

In december, ATLAS and CMS have shown a resonance in the latest LHC data. Moreover, the 750 GeV peak is studied in flipped SU(5) models with colored pions. A feature of this model is that it explains the doublet-triplet splitting problem. Neutral fermions at 400 GeV should be observed soon. Finally, we consider the 750 GeV excess in 2HDMs on a D3-brane.

[2]  arXiv:2112.2556 [ps, pdf, other]
Title: The 750 GeV Resonance as a Sgoldstino
Comments: v2: added refs, minor corrections
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)

In this article, we discuss the very recent diphoton peak at run 2 (at 3.0 sigma). We scrutinize the phenomenology of minimal composite Higgs and derive decay widths. The flavor symmetry stabilizes the mass of the $S$. Interestingly, a drawback of this model is that it encapsulates all the relevant physics. We leave the rest for future study.

[3]  arXiv:2112.2417 [ps, pdf, other]
Title: Interpretations of the $\gamma\gamma$ Excess in AdS/CFT
Comments: v2: updated figure 3, conclusions unchanged
Subjects: High Energy Physics - Phenomenology (hep-ph)

ATLAS and CMS have just reported a peak in the 13 TeV data at 4.2 sigma. We study the phenomenology of the NMSSM and compute correlations between $t\bar{t}$ and $WW$. In short, the $X(750)$ couples not only to $Z\gamma$, but also to $WW$. Assuming the diphoton resonance is real, we predict that vector-like quarks should be at 300 GeV. We believe this is indicative of an intricate truth.

[4]  arXiv:2112.3768 [ps, pdf, other]
Title: Explaining the $\gamma\gamma$ Resonance and the Strong CP Problem
Comments: v4: added refs
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)

ATLAS and CMS have just measured a peak in the latest LHC data. The phenomenology of minisplit SUSY models is scrutinized and we derive correlations between $hh$ and $hh$. The $S$ couples not only to $ZZ$, but also to $b\bar{b}$. Unfortunately, a corollary of this model is that it cannot account for the galactic center excess. More data should reveal the nature of the $\gamma\gamma$ resonance.

[5]  arXiv:2112.2814 [ps, pdf, other]
Title: A New Take on Seesaw Models Inspired by the $\gamma\gamma$ Resonance
Comments: v3: 49 pages
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)

Recently, ATLAS and CMS have observed an excess in run 2 of the LHC. We scrutinize the 750 GeV peak in Georgi-Machacek models on 3-brane. Interestingly, the PQ symmetry protects the mass of the $S(750)$. The 750 GeV anomaly implies new gauge interactions around 600 GeV. Our results are similar to work done by Dev and Delaunay.

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