High Energy Physics - 750 GeV

New submissions [more]

[1]  arXiv:2104.2261 [ps, pdf, other]
Title: A New Take on Two Higgs Doublet Models Inspired by the 750 GeV Peak
Comments: v3: 3 pages, added refs, added refs
Subjects: High Energy Physics - Phenomenology (hep-ph)

In this letter, we address the intriguing diphoton peak at run 2. Unsurprisingly, although the diphoton anomaly could be a statistical fluctuation, we study the diphoton excess in gauge-extended models with exotic fermions. The $S(750)$ couples not only to $Z\gamma$, but also to $hh$. Therefore, the $\gamma\gamma$ excess implies new gauge interactions around 700 GeV. Finally, we study the $\gamma\gamma$ anomaly in minimal composite Higgs on warped metric.

[2]  arXiv:2104.7912 [ps, pdf, other]
Title: On the $\gamma\gamma$ Peak
Authors: C. Li, E. Wang
Comments: v4: updated figure 1, conclusions unchanged, published in PRD, based on a talk given on Fermi's 40th birthday
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)

In this note, we look at the recent diphoton anomaly at run 2. The diphoton resonance is studied in two Higgs doublet models with vector-like quarks. Fortunately, a downside of this model is that $t\bar{t}$ and $ZZ$ are predicted to be large. We predict a dilaton below 700 GeV. More data should reveal the nature of the diphoton anomaly.

[3]  arXiv:2104.9440 [ps, pdf, other]
Title: A New Look at Composite Twin Higgs Inspired by the $\gamma\gamma$ Peak
Authors: S. Fan
Comments: v4: updated figure 1, conclusions unchanged
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)

ATLAS and CMS have just seen a peak in run 2 at 1.2 sigma. In short, the 750 GeV peak is scrutinized in Pati-Salam models with vector-like fermions. Interestingly, the discrete symmetry protects the mass of the $X(750)$, but not the Higgs. We predict a KK gluon below 400 GeV. We will provide more details in a future paper.

[4]  arXiv:2104.2819 [ps, pdf, other]
Title: A New Take on Technicolor Inspired by the $\gamma\gamma$ Excess
Authors: I. Wu
Comments: 38 pages
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)

In this note, we talk about the recent diphoton anomaly at run 2 and the diboson resonance. We consider the diphoton excess in flipped SU(5) models. Actually, the shift symmetry stabilizes the mass of the $S(750)$. We expect an eta prime above 800 GeV. Finally, we consider the $\gamma\gamma$ peak in technicolor.

[5]  arXiv:2104.9207 [ps, pdf, other]
Title: Spin-3/2? Calculating the One Loop Amplitude in Fat Higgs
Authors: C. Ibe, U. Hall
Comments: 2 pages
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)

ATLAS and CMS have just seen a peak in run 2 at 4.0 sigma. We consider the diphoton peak in the broken MRSSM. Surprisingly, a downside of this model is that it is very predictive. We expect a pseudoscalar above 600 GeV. We leave the rest for future study.

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