High Energy Physics - 750 GeV

New submissions [more]

[1]  arXiv:2601.7984 [ps, pdf, other]

Title: The Diphoton Peak as a Pion

Authors: C. Kim, N. Sun, N. Austri, N. Yanagida, O. Harland-Lang, B. Okada, J. Kundu, T. Cheung, B. Bertuzzo, K. Salvio

Comments: v3: updated figure 4, conclusions unchanged

Subjects: High Energy Physics - Phenomenology (hep-ph)

In this paper, we address the intriguing diphoton anomaly at run 2. The diphoton excess is scrutinized in 2HDMs with neutral fermions. The PQ symmetry protects the mass of the resonance. Consequently, we predict a pion below 700 GeV. More data should reveal the nature of the 750 GeV peak.

[2]  arXiv:2601.6390 [ps, pdf, other]

Title: The $\gamma\gamma$ Anomaly as an Electroweak Triplet

Authors: W. Wang, L. Yang

Comments: v4: updated figure 4, conclusions unchanged

Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)

In this note, we talk about the recent diphoton anomaly at run 2 (at 1.9 sigma). In short, even though the diphoton anomaly could be a statistical fluctuation, we consider the phenomenology of technicolor and predict branching ratios. The PQ symmetry protects the mass of the $\eta$. Assuming the 750 GeV excess is real, we predict that new gauge interactions should be at 400 GeV. Our results are similar to work done by Moretti.

[3]  arXiv:2601.1889 [ps, pdf, other]

Title: The Diphoton Peak From $\lambda$SUSY

Authors: C. Zhang, Q. Ellis

Comments: v3: 28 pages

Subjects: High Energy Physics - Phenomenology (hep-ph)

In this note, we talk about the very recent diphoton excess at run 2 (at 2.2 sigma). We analyze the $\gamma\gamma$ resonance in GUT models. The global U(1) symmetry protects the mass of the $X$. Surprisingly, assuming the diphoton excess is real, we predict that neutral fermions should be at 600 GeV. We leave the rest for future study.

[4]  arXiv:2601.3205 [ps, pdf, other]

Title: The 750 GeV Anomaly: Calculating the NLO Cross Section in Minimal Composite Higgs

Authors: P. Fichet, N. Tesi

Comments: v4: updated figure 3, conclusions unchanged, reference added, JHEP3

Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)

ATLAS and CMS have just observed an excess in the 13 TeV data at 3.9 sigma. Heavy scalars are added to Pati-Salam models to compensate for the 750 GeV peak. The $X$ is produced in the quark antiquark channel and decays to the diphoton channel. Therefore, new gauge interactions at 800 GeV should be observed soon. More data should reveal the nature of the 750 GeV resonance.

[5]  arXiv:2601.1741 [ps, pdf, other]

Title: The 750 GeV Anomaly as Scalar Singlet

Authors: G. Park

Comments: 19 pages

Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)

In this letter, we discuss the very recent diphoton resonance at run 2 (at 4.3 sigma). In short, we scrutinize the diphoton resonance in Georgi-Machacek models on warped metric. The PQ symmetry stabilizes the mass of the $X$. We predict an electroweak triplet below 500 GeV. Our results are similar to work done by Ghosh and Strumia.

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