Search for Higgs and $Z$ Boson Decays to $\varphi \gamma$ with the ATLAS Detector

Abstract

A search for the decays of the Higgs and $Z$ bosons to a $\varphi$ meson and a photon is performed with a $pp$ collision data sample corresponding to an integrated luminosity of 2.7 fb${}^{-1}$ collected at $\sqrt{s}=$13 TeV with the ATLAS detector at the LHC. No significant excess of events is observed above the background, and 95% confidence level upper limits on the branching fractions of the Higgs and $Z$ boson decays to $\varphi \gamma$ of 1.4$\times$10${}^{-3}$ and 8.3$\times$10${}^{-6}$, respectively, are obtained.

arXiv comment27 pages total, author list starting page 11, 3 figures, 2 tables. Published in Phys. Rev. Lett. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HIGG-2016-05/

References in corpus (36)

• 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
• A Large Mass Hierarchy from a Small Extra Dimension
• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• A Brief Introduction to PYTHIA 8.1
• New Generation of Parton Distributions with Uncertainties from Global QCD Analysis
• Big-Bang Nucleosynthesis
• Asymptotic formulae for likelihood-based tests of new physics
• A general framework for implementing NLO calculations in shower Monte Carlo programs: the POWHEG BOX
• A New Method for Combining NLO QCD with Shower Monte Carlo Algorithms
• Matching NLO QCD computations with Parton Shower simulations: the POWHEG method
• New parton distributions for collider physics
• Parton distributions with LHC data
• The ATLAS Simulation Infrastructure
• Minimal Flavour Violation: an effective field theory approach
• Improved luminosity determination in pp collisions at sqrt(s) = 7 TeV using the ATLAS detector at the LHC
• Kernel Estimation in High-Energy Physics
• Measurement of the $Z/{\gamma }^{\ast }$ boson transverse momentum distribution in $pp$ collisions at $\sqrt{s}$ = 7 TeV with the ATLAS detector
• NLO Higgs boson production via vector-boson fusion matched with shower in POWHEG
• NLO Higgs boson production via gluon fusion matched with shower in POWHEG
• Electron and photon energy calibration with the ATLAS detector using LHC Run 1 data
• Measurement of the inclusive isolated prompt photon cross section in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector
• Higgs boson decays to quarkonia and the Hccbar coupling
• Measurement of $W^{\pm }$ and $Z$-boson production cross sections in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Higgs-dependent Yukawa couplings
• An Exclusive Window onto Higgs Yukawa Couplings
• Measurement of the photon identification efficiencies with the ATLAS detector using LHC Run-1 data
• Exclusive Radiative Higgs Decays as Probes of Light-Quark Yukawa Couplings
• Relativistic corrections to Higgs boson decays to quarkonia
• Prospects for measuring the Higgs coupling to light quarks
• Exclusive Radiative Decays of W and Z Bosons in QCD Factorization
• Search for Higgs and $Z$ Boson Decays to $J/\psi \gamma$ and ${\rm Y}(nS)\gamma$ with the ATLAS Detector
• Rare exclusive decays of the Z-boson revisited
• Search for a Higgs boson decaying into gamma* gamma to ll gamma with low dilepton mass in pp collisions at sqrt(s) = 8 TeV
• Measurement of the D*(2010)+ natural line width and the D*(2010)+ - D0 mass difference

Cited by in corpus (18)

• Heavy-flavour and quarkonium production in the LHC era: from proton-proton to heavy-ion collisions
• Exclusive Radiative Higgs Decays as Probes of Light-Quark Yukawa Couplings
• Search for the Decay of the Higgs Boson to Charm Quarks with the ATLAS Experiment
• Searches for exclusive Higgs and $Z$ boson decays into $J/\psi \gamma$, $\psi (2S)\gamma$, and ${\rm Y}(nS)\gamma$ at $\sqrt{s}=13$ TeV with the ATLAS detector
• Search for exclusive Higgs and $Z$ boson decays to $\varphi \gamma$ and $\rho \gamma$ with the ATLAS detector
• Phenomenology of Enhanced Light Quark Yukawa Couplings and the $W^{\pm }h$ Charge Asymmetry
• The Higgs boson -- its implications and prospects for future discoveries
• Light quark Yukawas in triboson final states
• Exclusive Weak Radiative Higgs Decays in the Standard Model and Beyond
• Cancellation in Dark Matter-Nucleon Interactions: the Role of Non-Standard-Model-like Yukawa Couplings
• More light on Higgs flavor at the LHC: Higgs couplings to light quarks through $h+\gamma$ production
• Searches for exclusive Higgs and $Z$ boson decays into a vector quarkonium state and a photon using $139$ fb${}^{-1}$ of ATLAS $\sqrt{s}=13$ TeV proton$-$proton collision data
• Non-Parametric Data-Driven Background Modelling using Conditional Probabilities
• Measuring rare and exclusive Higgs boson decays into light resonances
• Search for the rare decays $W^{+}\to D_s^{+}\gamma$ and $Z\to D^0\gamma$ at LHCb
• Search for the exclusive $W$ boson hadronic decays $W^{\pm }\to {\pi }^{\pm }\gamma$, $W^{\pm }\to K^{\pm }\gamma$ and $W^{\pm }\to {\rho }^{\pm }\gamma$ with the ATLAS detector
• Exclusive rare Higgs decays into lepton pair and light mesons
• Mass biases in reconstructing exclusive radiative hadronic decays of W bosons at the LHC