High Energy Physics - 750 GeV

New submissions [more]

[1]  arXiv:2504.5482 [ps, pdf, other]
Title: On the $\gamma\gamma$ Peak
Authors: M. Langacker
Comments: v3: 2 pages, added refs, 42 figures
Subjects: High Energy Physics - Phenomenology (hep-ph)

In december, ATLAS and CMS have presented an anomaly in the 13 TeV data. Remarkably, the phenomenology of 2HDMs is studied and we compute anomalous dimensions. The $\phi$ couples to $hh$, but not to $hh$, decreasing tension with Run 1. Moreover, we predict an eta prime below 900 GeV. We will provide more details in a future paper.

[2]  arXiv:2504.9489 [ps, pdf, other]
Title: A New Take on Minimal Composite Higgs Inspired by the $\gamma\gamma$ Anomaly
Authors: M. Nomura, V. Wang
Comments: v4: updated figure 1, conclusions unchanged
Subjects: High Energy Physics - Phenomenology (hep-ph)

In this paper, we address the recent diphoton anomaly at run 2 (at 2.0 sigma). Therefore, we scrutinize the phenomenology of AdS/CFT and analyze the statistical significance. The resonance couples not only to $b\bar{b}$, but also to $t\bar{t}$. Remarkably, the $\gamma\gamma$ excess implies vector-like fermions around 800 GeV. Given this, our work may seem quite profound.

[3]  arXiv:2504.8000 [ps, pdf, other]
Title: Interpretations of the $\gamma\gamma$ Anomaly in Extensions of E6
Authors: Z. Sannino
Comments: v2: 43 pages
Subjects: High Energy Physics - Phenomenology (hep-ph)

ATLAS and CMS have just reported a resonance in run 2. Exotic fermions are added to composite models to allow for the 750 GeV excess. Curiously, a corollary of this model is that it encapsulates all the relevant physics. Assuming the diphoton excess is real, we predict that vector-like quarks should be at 600 GeV. Remarkably, there is much to be done.

[4]  arXiv:2504.3047 [ps, pdf, other]
Title: On the Diphoton Peak
Authors: Y. Sengupta
Comments: 3 pages
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)

In this article, we look at the recent diphoton peak at run 2 (at 1.7 sigma). Remarkably, we study the phenomenology of Georgi-Machacek models and analyze mass ratios. The chiral symmetry protects the mass of the $\eta$. In short, we expect a dilaton above 400 GeV. Finally, we analyze the $\gamma\gamma$ resonance in the NMSSM.

[5]  arXiv:2504.1808 [ps, pdf, other]
Title: The $\gamma\gamma$ Resonance From Composite Twin Higgs
Comments: v4: 22 pages, JHEP style, no figures
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)

Just recently, ATLAS and CMS have presented an anomaly in the 13 TeV data. We scrutinize the phenomenology of Georgi-Machacek models and evaluate correlations between $WW$ and $Z\gamma$. Remarkably, the $S$ is produced in inelastic scattering and decays to the diphoton channel. Assuming the $\gamma\gamma$ excess is real, we predict that neutral fermions should be at 800 GeV. We believe this is indicative of an elaborate fact.

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