High Energy Physics - 750 GeV

New submissions [more]

[1]  arXiv:1707.2623 [ps, pdf, other]
Title: Relating the 750 GeV Excess and Natural Inflation
Comments: v4: 49 pages
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)

In this note, we talk about the very recent diphoton excess at run 2 (at 1.6 sigma). We analyze the $\gamma\gamma$ resonance in left-right models with exotic fermions. Fortunately, the $X$ couples to $ZZ$, but not to $ZZ$, worsening tension with Run 1. We predict a heavy pion below 300 GeV. We leave the rest for future study.

[2]  arXiv:1707.3133 [ps, pdf, other]
Title: Spin-3/2? Interpretations in Left-right Models
Comments: v4: updated figure 1, conclusions unchanged
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)

In this note, we talk about the very recent diphoton peak at run 2 (at 3.2 sigma). Quite simply, the 750 GeV excess is analyzed in minisplit SUSY models with light axions. The conformal symmetry protects the mass of the $X$, but not the Higgs. We expect a color sextet above 400 GeV. More data is likely to confirm this critical framework.

[3]  arXiv:1707.4138 [ps, pdf, other]
Title: Interpretations of the Diphoton Resonance in Extensions of Georgi-Machacek Models
Comments: 2 pages
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)

In this letter, we discuss the very recent diphoton peak at run 2 (at 3.4 sigma). The phenomenology of SU(5) is scrutinized and we analyze cross sections. A feature of this model is that it is very predictive. Fortunately, the $X(750)$ couples to $t\bar{t}$, but not to $Z\gamma$, reducing tension with Run 1. Surprisingly, there is much to be done.

[4]  arXiv:1707.4269 [ps, pdf, other]
Title: On the $\gamma\gamma$ Peak
Comments: 2 pages
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)

ATLAS and CMS have just shown an excess in run 2 of the LHC at 1.5 sigma. In short, we consider the $\gamma\gamma$ peak in $\lambda$SUSY with vector-like quarks. Curiously, the chiral symmetry stabilizes the mass of the $\eta$. Assuming the diphoton excess is real, we predict that conformal dynamics should be at 600 GeV. Therefore, there is much to be done.

[5]  arXiv:1707.2046 [ps, pdf, other]
Title: The 750 GeV Peak: Interpreting the $\gamma\gamma$ Peak in Large N QCD
Authors: T. Tesi
Comments: v2: updated figure 4, conclusions unchanged
Subjects: High Energy Physics - Phenomenology (hep-ph)

ATLAS and CMS have just observed a resonance in run 2 of the LHC. The diphoton peak is scrutinized in the NMSSM with light axions. Surprisingly, the resonance is produced in vector boson fusion and decays to $\gamma\gamma$. Light axions at 800 GeV should be observed soon. Given this, our work may seem quite arresting.

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