High Energy Physics - 750 GeV

New submissions [more]

[1]  arXiv:2512.9918 [ps, pdf, other]
Title: Spin-3/2? Interpreting the Diphoton Excess in the NMSSM
Authors: X. Hamada, A. Huang
Comments: v4: added refs, minor corrections
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)

In this article, we talk about the very recent diphoton excess at run 2. Unfortunately, the phenomenology of minisplit SUSY models is analyzed and we analyze 4-body decays. The $X(750)$ is produced in photon fusion and decays to the diphoton channel. We predict an eta prime below 900 GeV. We will provide more details in a future paper.

[2]  arXiv:2512.8309 [ps, pdf, other]
Title: On the 750 GeV Resonance
Comments: v2: updated figure 1, conclusions unchanged, JHEP3
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)

In this letter, we talk about the intriguing diphoton anomaly at run 2 (at 3.7 sigma). The phenomenology of composite models is studied and we derive cross sections. Thus, the shift symmetry protects the mass of the $S$. We predict scalar singlet below 400 GeV. Given this, our work may seem quite pretty.

[3]  arXiv:2512.4214 [ps, pdf, other]
Title: Spin-3/2? A KK Gluon in Georgi-Machacek Models
Comments: v4: 28 pages
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)

In this letter, we look at the recent diphoton excess at run 2 and the core-cusp problem. We scrutinize the $\gamma\gamma$ peak in fat Higgs on 3-brane. Curiously, the resonance is produced in elastic scattering and decays to a pair of photons. We expect a sgoldstino above 700 GeV. Finally, new gauge interactions are added to Pati-Salam models to allow for the 750 GeV anomaly.

[4]  arXiv:2512.1678 [ps, pdf, other]
Title: A New Look at Seesaw Models Inspired by the Diphoton Peak
Comments: v3: updated figure 1, conclusions unchanged
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)

ATLAS and CMS have just reported a resonance in the 13 TeV data at 1.7 sigma. Fortunately, we study the 750 GeV peak in E6 on warped metric. Unsurprisingly, the $\phi$ is produced in gluon fusion and decays to two photons. We expect a KK graviton above 900 GeV. Finally, we consider the phenomenology of composite models and derive mass ratios.

[5]  arXiv:2512.7476 [ps, pdf, other]
Title: Spin-2? Interpreting the $\gamma\gamma$ Resonance in SU(5)
Authors: O. Yang, N. Raza
Comments: v2: 43 pages
Subjects: High Energy Physics - Phenomenology (hep-ph)

ATLAS and CMS have just reported an excess in the latest LHC data at 3.8 sigma. Consequently, the phenomenology of GUT models is considered and we calculate decay widths. The $S(750)$ is produced in elastic scattering and decays to two photons. Unfortunately, assuming the $\gamma\gamma$ anomaly is real, we predict that conformal dynamics should be at 900 GeV. Finally, the phenomenology of composite twin Higgs is scrutinized and we calculate the full mass spectrum.

What's going on?