High Energy Physics - 750 GeV
New submissions [more]
- [1] arXiv:2602.9091 [ps, pdf, other]
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Title: The Diphoton Excess as Scalar SingletComments: v3: 2 pages, added refs, 3 tablesSubjects: High Energy Physics - Phenomenology (hep-ph)
ATLAS and CMS have just observed an anomaly in the latest LHC data at 2.0 sigma. However, the phenomenology of GUT models is studied and we analyze flavor observables. The global U(1) symmetry stabilizes the mass of the $S(750)$. We expect scalar singlet above 800 GeV. Our results are similar to work done by Vigiani.
- [2] arXiv:2602.0448 [ps, pdf, other]
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Title: The 750 GeV Anomaly: Calculating the Mass Spectrum in Two Higgs Doublet ModelsComments: 2 pagesSubjects: High Energy Physics - Phenomenology (hep-ph)
ATLAS and CMS have just released an excess in the latest LHC data at 4.1 sigma. The 750 GeV excess is analyzed in 2HDMs with charge 2/3 quarks. Surprisingly, the shift symmetry protects the mass of the resonance, but not the Higgs. The 750 GeV resonance implies conformal dynamics around 900 GeV. We will provide more details in a future paper.
- [3] arXiv:2602.8509 [ps, pdf, other]
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Title: The Diphoton Peak: Interpretations in Minimal Composite HiggsComments: 2 pagesSubjects: High Energy Physics - Phenomenology (hep-ph)
In this paper, we talk about the recent diphoton excess at run 2 (at 3.9 sigma). Therefore, we consider the phenomenology of singlet-extended models and evaluate 4-body decays. In short, the global U(1) symmetry protects the mass of the $X$, but not the Higgs. Vector-like quarks at 400 GeV should be observed soon. Our results are similar to work done by Huang.
- [4] arXiv:2602.7654 [ps, pdf, other]
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Title: On the $\gamma\gamma$ AnomalyAuthors: Q. StrumiaComments: 3 pagesSubjects: High Energy Physics - Phenomenology (hep-ph)
In this note, we address the recent diphoton excess at run 2 (at 1.2 sigma). Vector-like fermions are added to E6 to account for the diphoton anomaly. Unsurprisingly, a drawback of this model is that it cannot account for $B \to D \tau \nu$. The diphoton resonance implies vector-like fermions around 800 GeV. More data should reveal the nature of the diphoton excess.
- [5] arXiv:2602.3070 [ps, pdf, other]
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Title: Interpretations of the $\gamma\gamma$ Peak in the Broken MRSSMComments: 37 pages, 30 figuresSubjects: 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. Conformal dynamics are added to composite models to explain the diphoton anomaly. The resonance couples not only to $t\bar{t}$, but also to $b\bar{b}$. Remarkably, assuming the diphoton excess is real, we predict that neutralinos should be at 600 GeV. Our results are similar to work done by Chakraborty.