Collider Tests of (Composite) Diphoton Resonances
arXiv:1602.07574 · doi:10.1016/j.nuclphysb.2016.07.032
Abstract
We analyze the Large Hadron Collider sensitivity to new pseudoscalar resonances decaying into diphoton with masses up to scales of few TeVs. We focus on minimal scenarios where the production mechanisms involve either photon or top-mediated gluon fusion, partially motivated by the tantalizing excess around 750 GeV reported by ATLAS and CMS. The two scenarios lead respectively to a narrow and a wide resonance. We first provide a model-independent analysis via effective operators and then introduce minimal models of composite dynamics where the diphoton channel is characterized by their topological sector. The relevant state here is the pseudoscalar associated with the axial anomaly of the new composite dynamics. If the Standard Model top mass is generated via four-fermion operators the coupling of this state to the top remarkably explains the wide-width resonance reported by ATLAS. Beyond the excess, our analysis paves the way to test dynamical electroweak symmetry breaking via topological sectors.
17 pages, 5 figures
References in corpus (45)
- Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
- Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
- PYTHIA 6.4 Physics and Manual
- The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
- Big-Bang Nucleosynthesis
- What is the gamma gamma resonance at 750 GeV?
- Dark Matter from new Technicolor Theories
- Minimal Walking Technicolor: Set Up for Collider Physics
- Ultra Minimal Technicolor and its Dark Matter TIMP
- Search for resonances and quantum black holes using dijet mass spectra in proton-proton collisions at sqrt(s) = 8 TeV
- Composite Models for the 750 GeV Diphoton Excess
- Towards Working Technicolor: Effective Theories and Dark Matter
- Search for narrow resonances decaying to dijets in proton-proton collisions at sqrt(s) = 13 TeV
- Rays of light from the LHC
- Search for New Phenomena in Dijet Mass and Angular Distributions from Collisions at = 13 TeV with the ATLAS Detector
- The LHC diphoton resonance and dark matter
- Scattering Light by Light at 750 GeV at the LHC
- Higgs characterisation at NLO in QCD: CP properties of the top-quark Yukawa interaction
- The Minimal Model of a Diphoton Resonance: Production without Gluon Couplings
- Diphoton Signatures from Heavy Axion Decays at the CERN Large Hadron Collider
- First interpretation of the 750 GeV di-photon resonance at the LHC
- The infrared dynamics of Minimal Walking Technicolor
- Quark Seesaw, Vectorlike Fermions and Diphoton Excess
- Fundamental Composite Higgs Dynamics on the Lattice: SU(2) with Two Flavors
- Tricking Landau-Yang: How to obtain the diphoton excess from a vector resonance
- Infrared fixed point in SU(2) gauge theory with adjoint fermions
- See-Saw Composite Higgses at the LHC: Linking Naturalness to the GeV Di-Photon Resonance
- The 750 GeV Diphoton Excess May Not Imply a 750 GeV Resonance
- Could the width of the diphoton anomaly signal a three-body decay ?
- The 750 GeV diphoton excess at the LHC and dark matter constraints
- Gluon vs. Photon Production of a 750 GeV Diphoton Resonance
- The production of a diphoton resonance via photon-photon fusion
- LHC diphotons from electroweakly pair-produced composite pseudoscalars
- Conformal Window of Gauge Theories with Four-Fermion Interactions and Ideal Walking
- The infrared regime of SU(2) with one adjoint Dirac flavour
- Mixed dark matter from technicolor
- A 750 GeV Portal: LHC Phenomenology and Dark Matter Candidates
- 750 GeV Composite Axion as the LHC Diphoton Resonance
- Broad Diphotons from Narrow States
- Is an axizilla possible for di-photon resonance?
- Search for New Phenomena in Dijet Angular Distributions in Proton-Proton Collisions at TeV Measured with the ATLAS Detector
- Future Collider Signatures of the Possible 750 GeV State
- A Composite Model for the 750 GeV Diphoton Excess
- Diphotons from Diaxions
- Minimal Composite Dynamics versus Axion Origin of the Diphoton excess
Cited by in corpus (14)
- Toward a coherent solution of diphoton and flavor anomalies
- LHC 750 GeV Diphoton excess in a radiative seesaw model
- Digamma, what next?
- Interpreting the 750 GeV digamma excess: a review
- Models of LHC Diphoton Excesses Valid up to the Planck scale
- Exploiting jet binning to identify the initial state of high-mass resonances
- Testing a dynamical origin of Standard Model fermion masses
- Invisible Axion-Like Dark Matter from Electroweak Bosonic Seesaw
- Asymmetric Dark Matter Models and the LHC Diphoton Excess
- LHC signatures of neutral pseudo-Goldstone boson in the E6CHM
- Learning from the New Higgs-like Scalar before It Vanishes
- Uncovering new strong dynamics via topological interactions at the 100 TeV collider
- Diphoton Resonances at the LHC
- Top Signatures From Composite Higgs Theories