High Energy Physics - 750 GeV
New submissions [more]
- [1] arXiv:2504.1921 [ps, pdf, other]
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Title: An Unified Explanation for the Diphoton Excess and the Doublet-triplet Splitting ProblemComments: v2: updated figure 1, conclusions unchangedSubjects: High Energy Physics - Phenomenology (hep-ph)
Just recently, ATLAS and CMS have observed a resonance in the 13 TeV data. Curiously, the 750 GeV anomaly is scrutinized in little Higgs with light axions. The $\phi$ is produced in inelastic scattering and decays to the diphoton channel. Surprisingly, we expect a dilaton above 300 GeV. Our results are similar to work done by Zhu and Arun.
- [2] arXiv:2504.0814 [ps, pdf, other]
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Title: A New Take on Left-right Models Inspired by the Diphoton ExcessComments: 19 pagesSubjects: High Energy Physics - Phenomenology (hep-ph)
Just recently, ATLAS and CMS have presented an excess in run 2. We analyze the $\gamma\gamma$ peak in E6. The $S(750)$ couples to $t\bar{t}$, but not to $ZZ$, decreasing tension with Run 1. Interestingly, exotic fermions at 400 GeV should be observed soon. Therefore, there is much to be done.
- [3] arXiv:2504.7020 [ps, pdf, other]
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Title: The $\gamma\gamma$ Excess as a KK GluonComments: v4: added refsSubjects: High Energy Physics - Phenomenology (hep-ph)
In this article, we discuss the very recent diphoton anomaly at run 2 and natural inflation. We study the diphoton resonance in E6 on 3-brane. Quite simply, the chiral symmetry stabilizes the mass of the $X(750)$. Assuming the $\gamma\gamma$ peak is real, we predict that neutralinos should be at 300 GeV. We will provide more details in a future paper.
- [4] arXiv:2504.2884 [ps, pdf, other]
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Title: On the $\gamma\gamma$ PeakComments: 46 pagesSubjects: High Energy Physics - Phenomenology (hep-ph)
ATLAS and CMS have just measured an excess in run 2 at 1.4 sigma. Therefore, the $\gamma\gamma$ resonance is considered in SO(10) with vector-like fermions. The $X(750)$ couples to $WW$, but not to $Z\gamma$, removing tension with Run 1. Curiously, neutral fermions are required at 400 GeV. More data is likely to confirm this elaborate structure.
- [5] arXiv:2504.1621 [ps, pdf, other]
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Title: Interpretations of the Diphoton Anomaly in Little HiggsComments: 32 pages, JHEP3Subjects: High Energy Physics - Phenomenology (hep-ph)
Recently, ATLAS and CMS have observed an excess in the second run of the LHC. The phenomenology of left-right models is scrutinized and we derive decay widths. The R symmetry stabilizes the mass of the $S(750)$. Unsurprisingly, the diphoton peak implies exotic fermions around 900 GeV. Unfortunately, there is much to be done.