Observation and studies of double J/psi production at the Tevatron

Abstract

We present the observation of doubly-produced $J/\psi$ mesons with the D0 detector at Fermilab in $p\bar{p}$ collisions at $\sqrt{s}=1.96$ TeV. The production cross section for both singly and doubly-produced $J/\psi$ mesons is measured using a sample with an integrated luminosity of 8.1fb${}^{-1}$. For the first time, the double $J/\psi$ production cross section is separated into contributions due to single and double parton scatterings. Using these measurements, we determine the effective cross section ${\sigma }_{eff}$, a parameter characterizing an effective spatial area of the parton-parton interactions and related to the parton spatial density inside the nucleon.

9 pages, 4 figures

References in corpus (7)

• PYTHIA 6.4 Physics and Manual
• Herwig++ Physics and Manual
• The four jet production at LHC and Tevatron in QCD
• Study of double parton scattering using W + 2-jet events in proton-proton collisions at sqrt(s) = 7 TeV
• Double parton interactions in photon + 3 jet and photon + b/c jet + 2 jet events in ppbar collisions at sqrt{s}=1.96 TeV
• The D0 Silicon Microstrip Tracker
• DJpsiFDC: an event generator for the process $gg\to J/\psi J/\psi$ at LHC

Cited by in corpus (69)

• Heavy-flavour and quarkonium production in the LHC era: from proton-proton to heavy-ion collisions
• Hunting for exotic doubly hidden-charm/bottom tetraquark states
• New Observables in Inclusive Production of Quarkonia
• Measurement of the prompt $J/\psi$ pair production cross-section in $pp$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
• J/psi-Pair Production at Large Momenta: Indications for Double-Parton Scatterings and Large alpha_s^5 Contributions
• Observation of Upsilon(1S) pair production in proton-proton collisions at sqrt(s) = 8 TeV
• Systematics of fully heavy tetraquarks
• Cancellation of Glauber gluon exchange in the double Drell-Yan process
• Study of $J/\psi$ production in jets
• Measurement of the $J/\psi$ pair production cross-section in $pp$ collisions at $\sqrt{s}=13\mathrm{TeV}$
• Pinning down the linearly-polarised gluons inside unpolarised protons using quarkonium-pair production at the LHC
• Evidence for simultaneous production of $J/\psi$ and ${\rm Y}$ mesons
• Production of associated ${\rm Y}$ and open charm hadrons in $pp$ collisions at $\sqrt{s}=7$ and $8$TeV via double parton scattering
• Double-quarkonium production at a fixed-target experiment at the LHC (AFTER@LHC)
• Study of hard double-parton scattering in four-jet events in $pp$ collisions at $\sqrt{s}=7$ TeV with the ATLAS experiment
• Complete Nonrelativistic-QCD Prediction for Prompt Double $J/\psi$ Hadroproduction
• Study of double parton interactions in diphoton + dijet events in $p\bar{p}$ collisions at $\sqrt{s}=1.96$ TeV
• Associated production of a quarkonium and a Z boson at one loop in a quark-hadron-duality approach
• Complete Study of Hadroproduction of a ${\rm Y}$ Meson Associated with a Prompt $J/\psi$
• Study of the hard double-parton scattering contribution to inclusive four-lepton production in $pp$ collisions at $\sqrt{s}$ = 8 TeV with the ATLAS detector
• Indication for Double Parton Scatterings in W + Prompt J/Psi Production at the LHC
• Production of $J/\psi +{\chi }_c$ and $J/\psi +J/\psi$ with real gluon emission at LHC
• Complete NLO QCD study of single- and double-quarkonium hadroproduction in the colour-evaporation model at the Tevatron and the LHC
• Double prompt $J/\psi$ hadroproduction in the parton Reggeization approach with high-energy resummation
• Prompt double $J/\psi$ production in proton-proton collisions at the LHC
• Triple prompt $J/\psi$ hadroproduction as a hard probe of multiple-parton scatterings
• Double parton scattering in pair-production of $J/\psi$ mesons at the LHC revisited
• Phenomenological analysis of associated production of $Z^0+b$ in the $b\to J/\psi X$ decay channel at the LHC
• Triply heavy $QQ\bar{Q}\bar{q}$ tetraquark states
• Two-loop splitting in double parton distributions
• Sum rule improved double parton distributions in position space
• Prospects for quarkonium studies at the high-luminosity LHC
• Production of ${\chi }_c$ pairs in $k_T$-factorization
• Probing impact-parameter dependent nuclear parton densities from double parton scatterings in heavy-ion collisions
• Measurement of double-parton scattering in inclusive production of four jets with low transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Breakdown of NRQCD Factorization in Processes Involving Two Quarkonia and its Cure
• Open charm production in Double Parton Scattering processes in the forward kinematics
• Stairway to discovery: a report on the CMS programme of cross section measurements from millibarns to femtobarns
• Associated $W^{\pm }{D}^{(\ast )}$ production at the LHC and prospects to observe double parton interactions
• Review of bottomonium measurements from CMS
• Double-parton scattering effects in associated production of charm mesons and dijets at the LHC
• Fragmentation of fully heavy tetraquarks: The TQ4Q1.1 functions as a case study
• Exclusive and diffractive quarkonium -- pair production at the LHC and FCC
• Double Parton Scattering of Weak Gauge Boson Productions at the 13 TeV and 100 TeV Proton-Proton Colliders
• Observation of same-sign WW production from double parton scattering in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Double quarkonium production at high Feynman-$x$
• The role of multi-parton interactions in doubly-heavy hadron production
• Double parton scattering in four-jet production in proton-proton collisions at the LHC
• Production of associated ${\chi }_b$ and open charm at the LHC
• Photoproduction of the double $J/\psi$ (${\rm Y}$) at the LHC with forward proton tagging
• Observation of double J/$\psi$ meson production in pPb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 8.16 TeV
• Review of physics results from the Tevatron: QCD physics
• Color Reconnection Effects in $J/\psi$ Hadroproduction
• Review of Physics Results from the Tevatron: Heavy Flavor Physics
• Prompt $J/\psi$-pair production at the LHC: impact of loop-induced contributions and of the colour-octet mechanism
• Measurement of inclusive J/$\psi$ pair production cross section in pp collisions at $\sqrt{s}=13$ TeV
• Comments on "Study of $J/\psi$ production in jets"
• All-charm tetraquarks at hadron colliders: A high-precision fragmentation perspective
• Double $J/\psi$ production in pion-nucleon scattering at COMPASS
• Four-jet double parton scattering production in proton-nucleus collisions within the PYTHIA8 framework
• Prompt $J/\psi$ production in associated with top quark pair at the LHC
• Associated production of ${\chi }_c$ pairs with a gluon in the collinear-factorization approach
• Charmonium pair production at the LHCb in the ICEM using the $k_T$-factorization: DPS versus SPS
• Revisit prompt $J/\psi$ production in associated with Higgs Boson via gluon fusion at the LHC
• Double parton interaction: the values of ${\sigma }_{\mathrm{eff}}$
• Associated Quarkonium Hadroproduction at High-Energy Colliders
• Associated-quarkonium production
• Modeling Double Parton Scattering at LHC
• J/psi+Z production at the LHC