Wide or narrow? The phenomenology of 750 GeV diphotons
نویسندگان
چکیده
منابع مشابه
Pseudoscalar Gluinonia to 750 GeV LHC Diphotons
Interpreting the diphoton mass excesses near 750 GeV reported by ATLAS and CMS as pseudoscalar gluinonia, bound states of two gluinos, we perform a scan in Next-to-Minimal Supersymmetry parameter space, fixing mg̃ ≈ 380 GeV and identifying an experimentally viable point. We generate events with this point, perform fast simulation, and carry out an analysis modeled on the ATLAS search which repro...
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a Department of Physics and Astronomy, Lehman College, City University of New York, NY 10468, USA b Department of Physics, Graduate Center, City University of New York, NY 10016, USA c Department of Astrophysics, American Museum of Natural History, NY 10024, USA d Departamento de Física, Universidad Nacional de La Plata, C.C. 67, (1900) La Plata, Argentina e LPTHE, UMR CNRS 7589, Sorbonne Unive...
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The recent excess in diphoton events around 750 GeV seen by the ATLAS and CMS experiments could be hinting at the existence of new vector-like charged matter around the TeV scale which couples to a singlet. Such a spectrum of exotics arises inevitably in certain classes of F-theory GUTs with hypercharge flux when the GUT symmetry is extended by a U(1) symmetry under which the Higgs fields of th...
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Article history: Received 10 April 2016 Accepted 20 May 2016 Available online 25 May 2016 Editor: M. Cvetič Motivated by the recent update on LHC searches for narrow and broad resonances decaying into diphotons we reconsider the possibility that the observed peak in the invariant mass spectrum at Mγ γ = 750 GeV originates from a closed string (possibly axionic) excitation φ (associated with low...
متن کاملBroad Diphotons from Narrow States
ATLAS and CMS have each reported a modest diphoton excess consistent with the decay of a broad resonance at ∼ 750 GeV. We show how this signal can arise in a weakly coupled theory comprised solely of narrow width particles. In particular, if the decaying particle is produced offshell, then the associated diphoton resonance will have a broad, adjustable width. We present simplified models which ...
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ژورنال
عنوان ژورنال: The European Physical Journal C
سال: 2016
ISSN: 1434-6044,1434-6052
DOI: 10.1140/epjc/s10052-016-4201-y