High Energy Physics - 750 GeV
New submissions [more]
- [1] arXiv:2603.0879 [ps, pdf, other]
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Title: The 750 GeV Anomaly From Split SUSY ModelsComments: v2: 28 pages, added refs, JHEP3Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)
ATLAS and CMS have just presented an excess in the latest LHC data at 3.9 sigma. Consequently, although the 750 GeV excess could be a statistical fluctuation, we study the 750 GeV resonance in composite models with exotic fermions. Curiously, the chiral symmetry stabilizes the mass of the resonance. The diphoton peak implies vector-like quarks around 900 GeV. We believe this is indicative of a key structure.
- [2] arXiv:2603.9865 [ps, pdf, other]
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Title: A New Look at Fat Higgs Inspired by the 750 GeV PeakAuthors: V. Park, N. Wang, B. Song, F. Nanopoulos, P. Fan, H. Zhang, T. Perez, C. Yang, D. Mayes, Z. GoudelisComments: v2: 23 pages, added refs, minor changes, 4 tables, minor changesSubjects: High Energy Physics - Phenomenology (hep-ph)
ATLAS and CMS have just observed a resonance in run 2 of the LHC. However, new gauge interactions are added to Seesaw models to compensate for the diphoton resonance. The PQ symmetry protects the mass of the resonance. Fortunately, neutral fermions are required at 500 GeV. Finally, the phenomenology of GUT models is studied and we evaluate the statistical significance.
- [3] arXiv:2603.5571 [ps, pdf, other]
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Title: The Diphoton Resonance From Seesaw ModelsAuthors: O. MarzoccaComments: v2: updated figure 1, conclusions unchangedSubjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)
ATLAS and CMS have just shown an anomaly in run 2 at 2.6 sigma. We analyze the phenomenology of little Higgs and derive the full mass spectrum. Remarkably, a downside of this model is that $WW$ and $ZZ$ are predicted to be almost zero. The $\gamma\gamma$ anomaly implies colored pions around 500 GeV. More data should reveal the nature of the 750 GeV resonance.
- [4] arXiv:2603.5408 [ps, pdf, other]
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Title: A New Look at the Broken MRSSM Inspired by the 750 GeV PeakComments: 34 pages, pdflatex, added refs, 3 figuresSubjects: High Energy Physics - Phenomenology (hep-ph)
In this note, we discuss the intriguing diphoton excess at run 2 and the core-cusp problem. The phenomenology of flipped SU(5) models is considered and we predict anomalous dimensions. A feature of this model is that it explains $h \to \mu \tau$. Surprisingly, the $S$ couples not only to $hh$, but also to $ZZ$. Finally, the diphoton anomaly is analyzed in flipped SU(5) models with charge 8/3 quarks.
- [5] arXiv:2603.6985 [ps, pdf, other]
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Title: A New Look at Minimal Composite Higgs Inspired by the Diphoton AnomalyComments: v4: 3 pagesSubjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)
ATLAS and CMS have just released a resonance in run 2 at 2.9 sigma. The 750 GeV anomaly is analyzed in composite models with vector-like fermions. The PQ symmetry protects the mass of the $X(750)$. Actually, the discrete symmetry protects the mass of the resonance. More data should reveal the nature of the diphoton anomaly.