Constraining off-shell production of axionlike particles with <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>Z</mml:mi><mml:mi>γ</mml:mi></mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>W</mml:mi><mml:mi>W</mml:mi></mml:math> differential cross-section measurements
S. Carrá, V. Goumarre, R. Gupta, S. Heim, B. Heinemann, Jan Küchler, F. Meloni, Pablo Quílez, Y. C. Yap
Abstract
This article describes a search for low-mass axionlike particles (ALPs) at the Large Hadron Collider (LHC). If ALPs were produced at the LHC via gluon-gluon fusion and decayed to bosons, the energy dependence of the measured diboson cross-sections would differ from the Standard Model expectation. Measurements of $WW$ and $Z\ensuremath{\gamma}$ differential cross sections by the ATLAS collaboration are interpreted to constrain ALP couplings to $W$-, $Z$-bosons and photons assuming gluon-gluon-fusion production.
Topics & Concepts
Large Hadron ColliderParticle physicsGluonPhysicsBosonFusionProduction (economics)Standard Model (mathematical formulation)Nuclear physicsQuarkArchaeologyPhilosophyEconomicsMacroeconomicsLinguisticsGauge (firearms)HistoryDark Matter and Cosmic PhenomenaParticle physics theoretical and experimental studiesHigh-Energy Particle Collisions Research