Neutralino/chargino pair production at NLO+NLL with resummation-improved PDFs for LHC Run II

Abstract

We make use of recently released parton density functions (PDFs) with threshold-resummation improvement to consistently calculate theoretical predictions for neutralino and chargino pair production at next-to-leading order and next-to-leading logarithmic accuracy. The updated cross sections have been computed for experimentally relevant higgsino and gaugino search channels at the ongoing Run II of the LHC. A factorisation method is applied to exploit the smaller PDF uncertainty of the global PDF sets and to avoid complications arising in the refitting of threshold-resummation improved PDF replicas in Mellin space. The reduction of the scale uncertainty due to the resummation is, however, explicitly taken into account. As expected, the resummation contributions in the PDF fits partially compensate the cross section enhancements induced by those in the partonic matrix elements.

14 pages, 5 figures, 4 tables

References in corpus (26)

• LHAPDF6: parton density access in the LHC precision era
• Simplified Models for a First Characterization of New Physics at the LHC
• Squark and gluino production cross sections in pp collisions at $\sqrt{s}$ = 13, 14, 33 and 100 TeV
• NNLL-fast: predictions for coloured supersymmetric particle production at the LHC with threshold and Coulomb resummation
• Search for new physics in events with two soft oppositely charged leptons and missing transverse momentum in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Neutrino Jets from High-Mass $W_R$ Gauge Bosons in TeV-Scale Left-Right Symmetric Models
• NNLL resummation for squark and gluino production at the LHC
• Threshold Resummation for Slepton-Pair Production at Hadron Colliders
• Slepton pair production at the LHC in NLO+NLL with resummation-improved parton densities
• Precision predictions for Z'-production at the CERN LHC: QCD matrix elements, parton showers, and joint resummation
• LHC Tests of Light Neutralino Dark Matter without Light Sfermions
• Joint resummation for slepton pair production at hadron colliders
• Search for supersymmetry in events with four or more leptons in $\sqrt{s}=13$ TeV $pp$ collisions with ATLAS
• Transverse-Momentum Resummation for Slepton-Pair Production at the LHC
• Neutralino Annihilation into Massive Quarks with SUSY-QCD Corrections
• Flavour Violation in Gauge-Mediated Supersymmetry Breaking Models: Experimental Constraints and Phenomenology at the LHC
• SUSY-QCD effects on neutralino dark matter annihilation beyond scalar or gaugino mass unification
• NLO+NLL limits on W' and Z' gauge boson masses in general extensions of the Standard Model
• Squark Production and Decay matched with Parton Showers at NLO
• Search for gauge-mediated supersymmetry in events with at least one photon and missing transverse momentum in pp collisions at $\sqrt{s}=$ 13 TeV
• Realistic simplified gaugino-higgsino models in the MSSM
• NNLL soft and Coulomb resummation for squark and gluino production at the LHC
• Threshold Resummation Effects in the Associated Production of Chargino and Neutralino at Hadron Colliders
• Search for neutralino pair production at the CERN LHC
• Slepton pair production in association with a jet: NLO-QCD corrections and parton-shower effects
• Precise predictions for electroweakino-pair production in association with a jet at the LHC

Cited by in corpus (37)

• Search for electroweak production of charginos and sleptons decaying into final states with two leptons and missing transverse momentum in $\sqrt{s}=13$ TeV $pp$ collisions using the ATLAS detector
• Searches for electroweak production of supersymmetric particles with compressed mass spectra in $\sqrt{s}=13$ TeV $pp$ collisions with the ATLAS detector
• Search for chargino--neutralino pair production in final states with three leptons and missing transverse momentum in $\sqrt{s}=13$ TeV $pp$ collisions with the ATLAS detector
• Search for supersymmetry in final states with two oppositely charged same-flavor leptons and missing transverse momentum in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Search for chargino-neutralino production with mass splittings near the electroweak scale in three-lepton final states in $\sqrt{s}$ = 13 TeV $pp$ collisions with the ATLAS detector
• Search for direct production of electroweakinos in final states with one lepton, missing transverse momentum and a Higgs boson decaying into two $b$-jets in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Search for charginos and neutralinos in final states with two boosted hadronically decaying bosons and missing transverse momentum in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Searches for new phenomena in events with two leptons, jets, and missing transverse momentum in 139 fb${}^{-1}$ of $\sqrt{s}=13$ TeV $pp$ collisions with the ATLAS detector
• Search for displaced leptons in $\sqrt{s}=13$ TeV $pp$ collisions with the ATLAS detector
• Search for electroweak production of charginos and neutralinos at $\sqrt{s}$ = 13 TeV in final states containing hadronic decays of WW, WZ, or WH and missing transverse momentum
• Muon g-2 vs LHC Run 2 in Supersymmetric Models
• Electroweak Phase Transition in the $Z_3$-invariant NMSSM: Implications of LHC and Dark matter searches and prospects of detecting the gravitational waves
• Search for supersymmetry with a compressed mass spectrum in events with a soft $\tau$ lepton, a highly energetic jet, and large missing transverse momentum in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Search for direct production of electroweakinos in final states with missing transverse momentum and a Higgs boson decaying into photons in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Electroweak superpartner production at 13.6 TeV with Resummino
• Muon $g-2$ in Gauge Mediation without SUSY CP Problem
• Combined search for electroweak production of winos, binos, higgsinos, and sleptons in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Search for chargino-neutralino production in events with Higgs and W bosons using 137 fb${}^{-1}$ of proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Status of searches for electroweak-scale supersymmetry after LHC Run 2
• Search for Nearly Mass-Degenerate Higgsinos Using Low-Momentum Mildly Displaced Tracks in $pp$ Collisions at $\sqrt{s}$ = 13 TeV with the ATLAS Detector
• Search for trilepton resonances from chargino and neutralino pair production in $\sqrt{s}$ = 13 TeV $pp$ collisions with the ATLAS detector
• A statistical combination of ATLAS Run 2 searches for charginos and neutralinos at the LHC
• A smuon in the NMSSM confronted with the muon g-2 and SUSY searches
• Higgsino and gaugino pair production at the LHC with aNNLO+NNLL precision
• New Bounds on Light Sneutrino Masses: Rare SUSY Signals
• MeV neutrino dark matter: Relic density, lepton flavour violation and electron recoil
• Sparticle Spectroscopy at LHC-Run3 and LSP Dark Matter in light of Muon g-2
• Search for pairs of muons with small displacements in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Reduce, Reuse, Reinterpret: an end-to-end pipeline for recycling particle physics results
• Flavor- and CP-safe explanation of $g_{\mu }-2$ anomaly
• Search for cascade decays of charged sleptons and sneutrinos in final states with three leptons and missing transverse momentum in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Search for displaced leptons in $\sqrt{s}=13$ TeV and $13.6$ TeV $pp$ collisions with the ATLAS detector
• Implementation of full and simplified likelihoods in CheckMATE
• Aspects of astrophysical particle production and beyond the Standard Model phenomenology
• Shedding Light on Dark Matter at the LHC with Machine Learning
• Dark Sector as Origin of Light Lepton Mass and Its Phenomenology
• Slepton pair production with aNNLO+NNLL precision