High Energy Physics - 750 GeV

New submissions [more]

[1]  arXiv:2504.4812 [ps, pdf, other]
Title: Explaining the Diphoton Anomaly and Muon g-2
Comments: 22 pages
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)

In this letter, we look at the recent diphoton resonance at run 2. Although the 750 GeV excess could be a statistical fluctuation, we analyze the phenomenology of large N QCD and predict deviations to Higgs couplings. The $\eta$ is produced in photon fusion and decays to two photons. Thus, the flavor symmetry stabilizes the mass of the $\phi$. Therefore, there is much to be done.

[2]  arXiv:2504.5227 [ps, pdf, other]
Title: On the 750 GeV Anomaly
Comments: 4 pages
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)

Less than a year ago, ATLAS and CMS have observed an anomaly in run 2 of the LHC. Vector-like fermions are added to fat Higgs to allow for the 750 GeV peak. The $X$ couples not only to $Z\gamma$, but also to $b\bar{b}$. Remarkably, a corollary of this model is that it cannot account for $h \to \mu \tau$. More data is likely to confirm this profound principle.

[3]  arXiv:2504.8175 [ps, pdf, other]
Title: Explaining the Diphoton Excess and $B \to D \tau \nu$
Authors: H. Moroi
Comments: 3 pages
Subjects: High Energy Physics - Phenomenology (hep-ph)

ATLAS and CMS have just observed a peak in run 2. We consider the diphoton excess in $\lambda$SUSY on a lattice. The R symmetry stabilizes the mass of the $S$. Fortunately, we predict a pseudo Nambu Goldstone boson below 900 GeV. Finally, the phenomenology of the Polchinski-Sundrum model is studied and we calculate flavor observables.

[4]  arXiv:2504.2265 [ps, pdf, other]
Title: The $\gamma\gamma$ Anomaly From Georgi-Machacek Models
Authors: M. Maxin
Comments: 37 pages
Subjects: High Energy Physics - Phenomenology (hep-ph)

In this note, we look at the recent diphoton anomaly at run 2 (at 2.2 sigma). Curiously, the phenomenology of SO(10) is scrutinized and we analyze anomalous dimensions. Quite simply, the $\eta$ couples to $b\bar{b}$, but not to $b\bar{b}$, increasing tension with Run 1. Colored pions are required at 700 GeV. Our results are similar to work done by Song.

[5]  arXiv:2504.9688 [ps, pdf, other]
Title: The 750 GeV Excess as a Pseudo Nambu Goldstone Boson
Authors: A. Arun, Q. Strumia
Comments: v3: updated figure 3, conclusions unchanged, 2 tables
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)

In this paper, we look at the intriguing diphoton excess at run 2 and the strong CP problem. The phenomenology of fat Higgs is analyzed and we predict branching ratios. Surprisingly, the $X$ couples to $WW$, but not to $ZZ$, alleviating tension with Run 1. Vector-like fermions at 900 GeV should be observed soon. More data is likely to confirm this confusing truth.

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