High Energy Physics - 750 GeV
New submissions [more]
- [1] arXiv:2512.2032 [ps, pdf, other]
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Title: On the Diphoton PeakAuthors: V. FanComments: 46 pages, reference addedSubjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)
ATLAS and CMS have just seen an excess in the second run of the LHC at 2.5 sigma. The diphoton excess is scrutinized in minimal composite Higgs with charge 2/3 quarks. A drawback of this model is that $t\bar{t}$ and $Z\gamma$ are predicted to be enormous. Consequently, the global U(1) symmetry protects the mass of the $X$. More data should reveal the nature of the diphoton excess.
- [2] arXiv:2512.9515 [ps, pdf, other]
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Title: A New Look at Two Higgs Doublet Models Inspired by the 750 GeV PeakComments: 2 pages, based on a talk given on Sundrum's 10th birthdaySubjects: High Energy Physics - Phenomenology (hep-ph)
ATLAS and CMS have just reported a resonance in the latest LHC data at 3.2 sigma. In short, heavy scalars are added to the MSSM to account for the diphoton peak. A downside of this model is that it encapsulates all the relevant physics. Assuming the diphoton excess is real, we predict that light axions should be at 600 GeV. More data is likely to confirm this elaborate edifice.
- [3] arXiv:2512.3572 [ps, pdf, other]
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Title: A New Take on SU(3)^3 Inspired by the $\gamma\gamma$ ExcessComments: v2: 10 pages, JHEP style, added refs, Latex fileSubjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)
In this letter, we address the intriguing diphoton excess at run 2 and natural inflation. We consider the 750 GeV resonance in composite twin Higgs with heavy scalars. The $X(750)$ couples to $WW$, but not to $ZZ$, alleviating tension with Run 1. Thus, the 750 GeV excess implies vector-like fermions around 300 GeV. We will provide more details in a future paper.
- [4] arXiv:2512.1712 [ps, pdf, other]
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Title: Relating the $\gamma\gamma$ Excess and the Core-cusp ProblemComments: v2: added refsSubjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)
ATLAS and CMS have just presented a resonance in run 2. Curiously, the 750 GeV resonance is analyzed in GUT models with charge 2/3 quarks. The $X$ couples not only to $WW$, but also to $b\bar{b}$. Vector-like fermions at 300 GeV should be observed soon. We leave the rest for future study.
- [5] arXiv:2512.5492 [ps, pdf, other]
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Title: The $\gamma\gamma$ Anomaly: Interpreting the 750 GeV Anomaly in Fat HiggsAuthors: E. ZhangComments: v2: added refsSubjects: High Energy Physics - Phenomenology (hep-ph)
In this note, we look at the recent diphoton anomaly at run 2 (at 3.5 sigma). We analyze the phenomenology of SU(3)^3 and predict decay widths. The resonance couples not only to $Z\gamma$, but also to $b\bar{b}$. Moreover, the $X$ is produced in inelastic scattering and decays to two photons. Finally, while the 750 GeV excess could be a statistical fluctuation, despite the fact that the $\gamma\gamma$ anomaly could be a statistical fluctuation, although the diphoton anomaly could be a statistical fluctuation, we study the phenomenology of SO(10) and evaluate decay widths.