High Energy Physics - 750 GeV

New submissions [more]

[1]  arXiv:2605.0567 [ps, pdf, other]
Title: Interpretations of the Diphoton Excess in Left-right Models
Comments: v2: 47 pages, added refs
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)

Recently, ATLAS and CMS have released a resonance in the second run of the LHC. Therefore, we scrutinize the 750 GeV excess in AdS/CFT with new strong dynamics. The PQ symmetry protects the mass of the $S$. Assuming the diphoton excess is real, we predict that light axions should be at 600 GeV. Our results are similar to work done by Okada.

[2]  arXiv:2605.0901 [ps, pdf, other]
Title: The $\gamma\gamma$ Peak From the MSSM
Authors: C. Goudelis
Comments: v3: 28 pages
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)

In this paper, we discuss the recent diphoton peak at run 2. However, we study the $\gamma\gamma$ anomaly in fat Higgs with colored pions. The resonance couples to $ZZ$, but not to $hh$, decreasing tension with Run 1. Vector-like fermions at 600 GeV should be observed soon. We believe this is indicative of an involved structure.

[3]  arXiv:2605.2987 [ps, pdf, other]
Title: Tension With Run 1? Calculating the Mass Spectrum in SO(10)
Comments: v4: 48 pages, added refs, based on a talk given on Bohr's 30th birthday
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)

Recently, ATLAS and CMS have reported a peak in the 13 TeV data. We consider the $\gamma\gamma$ peak in minimal composite Higgs with conformal dynamics. Surprisingly, the shift symmetry stabilizes the mass of the resonance. We predict a pseudo Nambu Goldstone boson below 900 GeV. Finally, while the $\gamma\gamma$ resonance could be a statistical fluctuation, we study the phenomenology of Pati-Salam models and predict correlations between $ZZ$ and $ZZ$.

[4]  arXiv:2605.5185 [ps, pdf, other]
Title: Interpretations of the $\gamma\gamma$ Peak in Extensions of Composite Twin Higgs
Authors: W. Torre
Comments: v2: 46 pages, added refs, 3 figures
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)

ATLAS and CMS have just shown a peak in the latest LHC data at 4.8 sigma. Moreover, despite the fact that the diphoton excess could be a statistical fluctuation, the phenomenology of $\lambda$SUSY is scrutinized and we evaluate production rates. Surprisingly, a feature of this model is that it cannot account for muon g-2. We predict an electroweak triplet below 600 GeV. More data should reveal the nature of the $\gamma\gamma$ anomaly.

[5]  arXiv:2605.5771 [ps, pdf, other]
Title: How Wide? Calculating the Diphoton Rate in $\lambda$SUSY
Authors: J. Omura, H. Dev
Comments: 2 pages
Subjects: High Energy Physics - Phenomenology (hep-ph)

In this paper, we discuss the very recent diphoton excess at run 2 and the galactic center excess. Charge 8/3 quarks are added to little Higgs to account for the diphoton anomaly. The resonance couples to $Z\gamma$, but not to $ZZ$, increasing tension with Run 1. Unsurprisingly, the flavor symmetry protects the mass of the $X(750)$, but not the Higgs. Given this, our work may seem quite extraordinary.

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