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Search for non-resonant Higgs boson pair production in the bbl nu l nu final state with the ATLAS detector in pp collisions at root s=13 TeV
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Search for non-resonant Higgs boson pair production in the bbℓνℓν final state with the ATLAS detector in pp collisions at s = 13 TeV
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Relaxation in dipolar spin ladders: From pair production to false-vacuum decay
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Superradiant emission stimulated by vortex-antivortex pair production in layered superconductors
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Pair production of dark particles in meson decays
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Search for bottom-type, vectorlike quark pair production in a fully hadronic final state in proton-proton collisions at s = 13 TeV
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Top-quark pair production in association with a W ± gauge boson in the POWHEG-BOX
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Search for trilepton resonances from chargino and neutralino pair production in s = 13 TeV p p collisions with the ATLAS detector
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Search for bottom-squark pair production in p p collision events at s = 13 TeV with hadronically decaying τ -leptons, b -jets, and missing transverse momentum using the ATLAS detector
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Probing the minimal U ( 1 ) X model at future electron-positron colliders via fermion pair-production channels
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Search for Higgs boson pair production in the two bottom quarks plus two photons final state in p p collisions at s = 13 TeV with the ATLAS detector
Searches are performed for nonresonant and resonant di-Higgs boson production in the $b\bar{b}γγ$ final state. The dataset used corresponds to an integrated luminosity of 139 fb –1 of proton–proton collisions at a center-of-mass energy of 13 TeV recorded by the ATLAS detector at the CERN Large Hadron Collider. No excess above the expected background is found and upper limits on the di-Higgs boson production cross sections are set. A 95% confidence-level upper limit of 4.2 times the cross section predicted by the Standard Model is set on pp → HH nonresonant production, where the expected limit is 5.7 times the Standard Model predicted value. The expected constraints are obtained for a background hypothesis excluding pp → HH production. The observed (expected) constraints on the Higgs boson trilinear coupling modifier κ λ are determined to be [–1.5, 6.7] ([– 2.4, 7.7]) at 95% confidence level, where the expected constraints on κ λ are obtained excluding pp → HH production from the background hypothesis. For resonant production of a new hypothetical scalar particle X (X → HH → $b\bar{b}γγ$), limits on the cross section for pp → X → HH are presented in the narrow-width approximation as a function of m X in the range 251 GeV ≤ m X ≤ 1000 GeV. The observed (expected) limits on the cross section for pp → X → HH range from 640 fb to 44 fb (391 fb to 46 fb) over the considered mass range.
Spin correlations in τ -lepton pair production due to anomalous magnetic and electric dipole moments
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Observation of charmed strange meson pair production in ϒ ( 2 S ) decays and in e + e − annihilation at s = 10.52 GeV
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Search for Higgs Boson Pair Production in the Four b Quark Final State in Proton-Proton Collisions at s = 13 TeV
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Search for the Pair Production of Dark Particles X with K L 0 → X X , X → γ γ
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Geant4 RApid Pair Production Application (GRAPPA) v1.0.0
GRAPPA is a Geant4 application that simulates the interaction of an incoming particle beam (typically electron or photons) with an High-Z material. Particles are generated at a certain energy and interact with a solid target. The product of this interaction is detected and saved on file. The application implements a basic target that is just a simple box, and it accepts complex target descriptions via GDML files. The user has the freedom to set detectors to capture the desired particles. This application enables studying processes such as antiparticle production, muon generation, and atomic decay.