Radion Candidate for the LHC Diphoton Resonance

Abstract

The recent observation of a modest excess in diphoton final states at the LHC, by both the ATLAS and CMS Collaborations, has sparked off the expected race among theorists to find the right explanation for this proto-resonance, assuming that the signal will survive and not prove to be yet another statistical fluctuation. We carry out a general analysis of this `signal' in the case of a scalar which couples only to pairs of gluons (for production) and photons (for diphoton decay modes), and establish that an explanation of the observed resonance, taken together with the null results of new physics searches in all the other channels, requires a scalar with rather exotic behaviour. We then demonstrate that a fairly simple-minded extension of the minimal Randall-Sundrum model can yield a radion candidate which might reproduce this exotic behaviour.

arXiv comment14 pages, pdfLatex, 2 pdf figures, small changes made in text and some references added

References in corpus (44)

• 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
• Combined results of searches for the standard model Higgs boson in pp collisions at sqrt(s) = 7 TeV
• Combined search for the Standard Model Higgs boson using up to 4.9 fb-1 of pp collision data at sqrt(s) = 7 TeV with the ATLAS detector at the LHC
• Measurement of Higgs boson production and properties in the WW decay channel with leptonic final states
• Search for new phenomena in the dijet mass distribution using $p-p$ collision data at $\sqrt{s}=8$ TeV with the ATLAS detector
• What is the gamma gamma resonance at 750 GeV?
• Composite Models for the 750 GeV Diphoton Excess
• Phenomenology of a 750 GeV Singlet
• Scenarii for interpretations of the LHC diphoton excess: two Higgs doublets and vector-like quarks and leptons
• LHC probes the hidden sector
• On the Interpretation of a Possible $\sim 750$ GeV Particle Decaying into $\gamma \gamma$
• Rays of light from the LHC
• The LHC diphoton resonance and dark matter
• The QCD Axion from Aligned Axions and Diphoton Excess
• Di-photon excess illuminates Dark Matter
• Scattering Light by Light at 750 GeV at the LHC
• The Minimal Model of a Diphoton Resonance: Production without Gluon Couplings
• A pseudoscalar decaying to photon pairs in the early LHC Run 2 data
• Footprints of New Strong Dynamics via Anomaly and the 750 GeV Diphoton
• Singlet Scalar Resonances and the Diphoton Excess
• First interpretation of the 750 GeV di-photon resonance at the LHC
• Diphoton Signatures from Heavy Axion Decays at the CERN Large Hadron Collider
• The 750 GeV diphoton excess from the goldstino superpartner
• A 750 GeV Dark Pion: Cousin of a Dark G-parity-odd WIMP
• Can the new resonance at LHC be a CP-Odd Higgs boson?
• Di-photon resonance around 750 GeV: shedding light on the theory underneath
• Quirky Explanations for the Diphoton Excess
• The Minimal Scalar-Stealth Top Interpretation of the Diphoton Excess
• A hidden confining world on the 750 GeV diphoton excess
• A Boost Test of Anomalous Diphoton Resonance at the LHC
• The 750 GeV $S$-cion: Where else should we look for it?
• Interpretation of the diphoton excess at CMS and ATLAS
• Higgs singlet boson as a diphoton resonance in a vector-like quark model
• See-Saw Composite Higgses at the LHC: Linking Naturalness to the $750$ GeV Di-Photon Resonance
• A resonance without resonance: scrutinizing the diphoton excess at 750 GeV
• Implications of the absence of high-mass radion signals
• A SUSY Inspired Simplified Model for the 750 GeV Diphoton Excess
• On sgoldstino interpretation of the diphoton excess
• Could the width of the diphoton anomaly signal a three-body decay ?
• 750 GeV Diphoton Signal from One-Family Walking Technipion
• Supersoft SUSY Models and the 750 GeV Diphoton Excess, Beyond Effective Operators
• An updated analysis of radion-higgs mixing in the light of LHC data
• On dilatons and the LHC diphoton excess

Cited by in corpus (62)

• Quark Seesaw, Vectorlike Fermions and Diphoton Excess
• Indirect Constraints on the Scalar Di-Photon Resonance at the LHC
• 750 GeV Resonance in the Dark Left-Right Model
• Trinification can explain the di-photon and di-boson LHC anomalies
• Higgs Stability and the 750 GeV Diphoton Excess
• Running after Diphoton
• The LHC diphoton resonance from gauge symmetry
• Electroweak Vacuum Stability and Diphoton Excess at 750 GeV
• Interpreting 750 GeV diphoton excess in SU(5) grand unified theory
• Shedding Light on Diphoton Resonances
• A 750 GeV Portal: LHC Phenomenology and Dark Matter Candidates
• Diphoton excess at 750 GeV: Singlet scalars confront triviality
• The 750 GeV Diphoton excess in a $U(1)$ hidden symmetry model
• A 750 GeV Messenger of Dark Conformal Symmetry Breaking
• Diphoton resonance at 750 GeV in the broken MRSSM
• 750 GeV Diphoton Resonance from Singlets in an Exceptional Supersymmetric Standard Model
• Implications of the diphoton excess on Left-Right models and gauge unification
• Two Higgs doublets to explain the excesses $pp\to \gamma \gamma (750\mathrm{GeV})$ and $h\to {\tau }^{\pm }{\mu }^{\mp }$
• Perturbativity, vacuum stability and inflation in the light of 750 GeV diphoton excess
• Four-loop Neutrino Model Inspired by Diphoton Excess at 750 GeV
• The 750 GeV diphoton resonance as a singlet scalar in an extra dimensional model
• LHC 750 GeV Diphoton excess in a radiative seesaw model
• An extension of two-Higgs-doublet model and the excesses of 750 GeV diphoton, muon g-2 and $h\to \mu \tau$
• Digamma, what next?
• Diphoton Excess at 750 GeV in leptophobic U(1)${}^{\prime }$ model inspired by $E_6$ GUT
• 750 GeV Diphoton excess from Gauged $B-L$ Symmetry
• An O(750) GeV Resonance and Inflation
• 750 GeV Diphoton excess from $E_6$ in F-theory GUTs
• A Promising Interpretation of Diphoton Resonance at 750 GeV
• Interpreting the 750 GeV digamma excess: a review
• Dark sector shining through 750 GeV dark Higgs boson at the LHC
• Higgs precision study of the 750 GeV diphoton resonance and the 125 GeV standard model Higgs boson with Higgs-singlet mixing
• Diphoton Excess in Consistent Supersymmetric SU(5) Models with Vector-like Particles
• Vector-Like Exotics in F-Theory and 750 GeV Diphotons
• 750 GeV Resonance in the Gauged $U(1{)}^{\prime }$-Extended MSSM
• Interpretation of 750 GeV Diphoton Excess at LHC in Singlet Extension of Color-octet Neutrino Mass Model
• Top-phobic heavy Higgs boson as the 750 GeV diphoton resonance
• Studying 750 GeV Di-photon Resonance at Photon-Photon Collider
• Interpreting The 750 GeV Diphoton Excess Within Topflavor Seesaw Model
• 750 GeV Di-photon excess at CERN LHC from a dark sector assisted scalar decay
• How Resonance-Continuum Interference Changes 750 GeV Diphoton Excess: Signal Enhancement and Peak Shift
• Subdominant Left-Right Scalar Dark Matter as Origin of the 750 GeV Di-photon Excess at LHC
• Left-right asymmetry and 750 GeV diphoton excess
• Diphoton Resonance from a Warped Extra Dimension
• Diphoton excess at 750 GeV and LHC constraints in models with vector-like particles
• Diphoton Excess and Running Couplings
• Models of LHC Diphoton Excesses Valid up to the Planck scale
• Note on Spin-2 Particle Interpretation of the 750~GeV Diphoton Excess
• Di-Photon excess in the 2HDM: hasting towards the instability and the non-perturbative regime
• Systematic Study of Diphoton Resonance at 750 GeV from Sgoldstino
• Mixed Higgs-Radion States at the LHC -- a Detailed Study
• Asymmetric Dark Matter Models and the LHC Diphoton Excess
• LHC signatures of neutral pseudo-Goldstone boson in the E6CHM
• Topological Structure of the Vacuum, Cosmological Constant and Dark Energy
• Diphoton decay for a 750 GeV scalar boson in a $SU(6)\otimes U(1{)}_X$ model
• Learning from the New Higgs-like Scalar before It Vanishes
• Minimal Dilaton Model and the Diphoton Excess
• Implications of the 750 GeV gamma-gamma Resonance as a Case Study for the International Linear Collider
• Boosted scalar confronting 750 GeV di-photon excess
• Diphoton signal via Chern-Simons interaction in a warped geometry scenario
• Bulk Higgs and the 750 GeV diphoton signal
• Exploring high-mass diphoton resonance without new colored states