High Energy Physics - 750 GeV
New submissions [more]
- [1] arXiv:2601.4046 [ps, pdf, other]
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Title: A New Take on Seesaw Models Inspired by the Diphoton ResonanceComments: 30 pagesSubjects: High Energy Physics - Phenomenology (hep-ph)
Recently, ATLAS and CMS have shown an excess in run 2 of the LHC. The diphoton resonance is analyzed in AdS/CFT with heavy scalars. Interestingly, the $S$ is produced in gluon fusion and decays to two photons. We expect a color sextet above 900 GeV. In short, there is much to be done.
- [2] arXiv:2601.5533 [ps, pdf, other]
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Title: The Diphoton Peak From Pati-Salam ModelsAuthors: R. MawatariComments: 34 pages, minor changesSubjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)
In this note, we talk about the intriguing diphoton peak at run 2 and natural inflation. We analyze the 750 GeV excess in E6 with neutral fermions. Curiously, the $S$ couples not only to $ZZ$, but also to $WW$. New strong dynamics at 400 GeV should be observed soon. More data should reveal the nature of the diphoton anomaly.
- [3] arXiv:2601.6578 [ps, pdf, other]
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Title: On the Diphoton ResonanceAuthors: M. GhoshComments: 12 pagesSubjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)
In this note, we talk about the recent diphoton peak at run 2 (at 1.3 sigma). We consider the phenomenology of the Polchinski-Einstein model and derive decay widths. Surprisingly, a downside of this model is that it is very predictive. Heavy scalars are required at 300 GeV. Our results are similar to work done by Song and Sengupta.
- [4] arXiv:2601.5011 [ps, pdf, other]
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Title: A Common Framework for the $\gamma\gamma$ Excess and $h \to \mu \tau$Authors: F. NomuraComments: 29 pagesSubjects: High Energy Physics - Phenomenology (hep-ph)
Just recently, ATLAS and CMS have released a peak in run 2 of the LHC. Unfortunately, we analyze the 750 GeV anomaly in Georgi-Machacek models. Interestingly, a drawback of this model is that it is very predictive. New gauge interactions are required at 500 GeV. We leave the rest for future study.
- [5] arXiv:2601.5118 [ps, pdf, other]
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Title: The $\gamma\gamma$ Peak as an AxinoAuthors: B. StrumiaComments: v4: added refs, minor correctionsSubjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)
ATLAS and CMS have just reported an excess in run 2. We analyze the phenomenology of little Higgs and compute production rates. Unsurprisingly, the conformal symmetry protects the mass of the $\phi$. Vector-like fermions at 300 GeV should be observed soon. We will provide more details in a future paper.