High Energy Physics - 750 GeV

New submissions [more]

[1]  arXiv:2505.3711 [ps, pdf, other]

Title: The Diphoton Excess: Interpreting the Diphoton Peak in Gauge-extended Models

Authors: D. Dutta

Comments: v3: added refs

Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)

In this paper, we look at the intriguing diphoton excess at run 2 and the galactic center excess. We scrutinize the phenomenology of technicolor and analyze anomalous dimensions. The $\phi$ is produced in vector boson fusion and decays to a pair of photons. Curiously, the $S(750)$ couples not only to $hh$, but also to $ZZ$. Our results are similar to work done by Zhang and Quevillon.

[2]  arXiv:2505.9897 [ps, pdf, other]

Title: Spin-3/2? A Sgoldstino in Split SUSY Models

Authors: H. Langacker, Y. Hernández

Comments: 3 pages, published in PRD

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

In this paper, we look at the intriguing diphoton excess at run 2 (at 2.1 sigma). Surprisingly, we analyze the phenomenology of E6 and compute mass ratios. The $S(750)$ is produced in elastic scattering and decays to $\gamma\gamma$. The diphoton resonance implies vector-like quarks around 600 GeV. We leave the rest for future study.

[3]  arXiv:2505.1746 [ps, pdf, other]

Title: The $\gamma\gamma$ Peak From the MSSM

Authors: C. Chao, D. Nomura, V. Okada, U. Okada, C. Mandal, C. Aydemir, W. Halverson, E. Hall, I. Zhang, Y. Chakraborty

Comments: 49 pages, reference added, Latex file, JHEP style

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 and the 2 TeV resonance. We study the $\gamma\gamma$ resonance in left-right models with heavy scalars. Unsurprisingly, the R symmetry protects the mass of the $S$. Vector-like quarks are required at 700 GeV. Our results are similar to work done by Okada.

[4]  arXiv:2505.9789 [ps, pdf, other]

Title: Interpretations of the 750 GeV Anomaly in Singlet-extended Models

Authors: F. Hall

Comments: v3: updated figure 4, conclusions unchanged, based on a talk given on Einstein's 30th birthday

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

ATLAS and CMS have just shown an anomaly in run 2 of the LHC. Unsurprisingly, the phenomenology of the Weinberg-Einstein model is scrutinized and we predict deviations to Higgs couplings. The $X$ couples not only to $b\bar{b}$, but also to $WW$. Therefore, new gauge interactions at 900 GeV should be observed soon. Finally, we scrutinize the $\gamma\gamma$ peak in SU(5) with neutral fermions.

[5]  arXiv:2505.0024 [ps, pdf, other]

Title: What if It Is Wide? Calculating the One Loop Amplitude in Seesaw Models

Authors: Q. Zhang

Comments: v2: updated figure 4, conclusions unchanged, 44 figures, BibTeX

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

A few months ago, ATLAS and CMS have measured a peak in the second run of the LHC. We scrutinize the 750 GeV excess in SU(5). However, the R symmetry stabilizes the mass of the resonance. We expect a sgoldstino above 900 GeV. More data should reveal the nature of the $\gamma\gamma$ anomaly.

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