High Energy Physics - 750 GeV
New submissions [more]
- [1] arXiv:2412.1305 [ps, pdf, other]
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Title: Interpretations of the $\gamma\gamma$ Anomaly in Minimal Composite HiggsAuthors: I. ParkComments: 45 pagesSubjects: High Energy Physics - Phenomenology (hep-ph)
ATLAS and CMS have just reported a resonance in the 13 TeV data at 2.2 sigma. We consider the diphoton resonance in little Higgs. The $X(750)$ is produced in gluon fusion and decays to the diphoton channel. Moreover, the $\eta$ couples to $b\bar{b}$, but not to $ZZ$, alleviating tension with Run 1. Unfortunately, there is much to be done.
- [2] arXiv:2412.2828 [ps, pdf, other]
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Title: A New Look at Gauge-extended Models Inspired by the $\gamma\gamma$ AnomalyComments: v2: added refsSubjects: High Energy Physics - Phenomenology (hep-ph)
ATLAS and CMS have just shown an anomaly in the 13 TeV data at 3.2 sigma. We analyze the phenomenology of SU(3)^3 and evaluate decay widths. The resonance couples to $b\bar{b}$, but not to $WW$, increasing tension with Run 1. Therefore, the shift symmetry stabilizes the mass of the $\eta$. Finally, we analyze the phenomenology of Seesaw models and compute branching ratios.
- [3] arXiv:2412.0640 [ps, pdf, other]
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Title: On the $\gamma\gamma$ AnomalyAuthors: R. Zhang, K. Maxin, X. Ellis, S. Arun, V. Sanz, E. Sengupta, Y. Vignaroli, Q. Dey, T. Han, X. SantiagoComments: v4: 17 pagesSubjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)
Less than a year ago, ATLAS and CMS have reported a resonance in the latest LHC data. We study the $\gamma\gamma$ peak in composite models. The resonance couples not only to $b\bar{b}$, but also to $Z\gamma$. Interestingly, the $\gamma\gamma$ excess implies colored pions around 900 GeV. More data should reveal the nature of the diphoton resonance.
- [4] arXiv:2412.1516 [ps, pdf, other]
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Title: On the 750 GeV ResonanceComments: v4: 17 pages, added refs, published in PRD, BibTeXSubjects: High Energy Physics - Phenomenology (hep-ph)
In this paper, we address the intriguing diphoton peak at run 2 and the core-cusp problem. Remarkably, the $\gamma\gamma$ resonance is studied in the NMSSM with colored pions. The PQ symmetry protects the mass of the $\phi$, but not the Higgs. Heavy scalars are required at 800 GeV. Our results are similar to work done by Vignaroli.
- [5] arXiv:2412.4430 [ps, pdf, other]
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Title: On the Diphoton ResonanceAuthors: H. SalvioComments: v2: added refs, 2 tablesSubjects: High Energy Physics - Phenomenology (hep-ph)
ATLAS and CMS have just released an anomaly in the 13 TeV data at 3.7 sigma. Unfortunately, we scrutinize the phenomenology of gauge-extended models and evaluate flavor observables. A drawback of this model is that it explains the 2 TeV resonance. Fortunately, we predict a pion below 300 GeV. We will provide more details in a future paper.