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High Energy Physics - Phenomenology

arXiv:1602.07297 (hep-ph)
[Submitted on 23 Feb 2016 (v1), last revised 3 May 2016 (this version, v3)]

Title:Di-photon resonance and Dark Matter as heavy pions

Authors:Michele Redi, Alessandro Strumia, Andrea Tesi, Elena Vigiani
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Abstract:We analyse confining gauge theories where the 750 GeV di-photon resonance is a composite techni-pion that undergoes anomalous decays into SM vectors. These scenarios naturally contain accidentally stable techni-pions Dark Matter candidates. The di-photon resonance can acquire a larger width by decaying into Dark Matter through the CP-violating $\theta$-term of the new gauge theory reproducing the cosmological Dark Matter density as thermal relic.
Comments: 30 pages, 3 figures, 4 tables. v3: final version, updated including Moriond data
Subjects: High Energy Physics - Phenomenology (hep-ph)
Report number: IFUP-TH/2016, CERN-PH-TH/2016-040, EFI-16-03
Cite as: arXiv:1602.07297 [hep-ph]
  (or arXiv:1602.07297v3 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.1602.07297

Submission history

From: Alessandro Strumia [view email]
[v1] Tue, 23 Feb 2016 20:50:57 UTC (614 KB)
[v2] Thu, 10 Mar 2016 16:41:48 UTC (642 KB)
[v3] Tue, 3 May 2016 12:21:30 UTC (907 KB)
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