Measurement of antiproton production in $\mathrm{pHe}$ collisions at $\sqrt{s_{NN}}=110$ GeV

Abstract

The cross-section for prompt antiproton production in collisions of protons with an energy of $6.5$ TeV incident on helium nuclei at rest is measured with the LHCb experiment from a data set corresponding to an integrated luminosity of $0.5n{b}^{-1}$. The target is provided by injecting helium gas into the LHC beam line at the LHCb interaction point. The reported results, covering antiproton momenta between $12$ and $110GeV/c$, represent the first direct determination of the antiproton production cross-section in $\mathrm{pHe}$ collisions, and impact the interpretation of recent results on antiproton cosmic rays from space-borne experiments.

arXiv commentAll figures and tables, along with any supplementary material and additional information, are available at https://lhcbproject.web.cern.ch/lhcbproject/Publications/LHCbProjectPublic/LHCb-PAPER-2018-031.html

References in corpus (18)

• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• EPOS LHC : test of collective hadronization with LHC data
• LHCb Detector Performance
• Monte Carlo treatment of hadronic interactions in enhanced Pomeron scheme: I. QGSJET-II model
• HIJING 1.0: A Monte Carlo Program for Parton and Particle Production in High Energy Hadronic and Nuclear Collisions
• Performance of the LHCb RICH detector at the LHC
• Measurement of the track reconstruction efficiency at LHCb
• Precision luminosity measurements at LHCb
• EPOS Model and Ultra High Energy Cosmic Rays
• A Precision Search for WIMPs with Charged Cosmic Rays
• A new evaluation of the antiproton production cross section for cosmic ray studies
• Production cross sections of cosmic antiprotons in the light of new data from the NA61 and LHCb experiments
• New calculation of antiproton production by cosmic ray protons and nuclei
• AMS-02 Antiprotons Reloaded
• Measurement of prompt hadron production ratios in $pp$ collisions at $\sqrt{s}=$ 0.9 and 7 TeV
• A new event generator for the elastic scattering of charged leptons on protons
• Prescriptions on antiproton cross section data for precise theoretical antiproton flux predictions

Cited by in corpus (33)

• A Precision Search for WIMPs with Charged Cosmic Rays
• The Muon Puzzle in cosmic-ray induced air showers and its connection to the Large Hadron Collider
• Scrutinizing the evidence for dark matter in cosmic-ray antiprotons
• Ultra-High-Energy Cosmic Rays: The Intersection of the Cosmic and Energy Frontiers
• First measurement of charm production in fixed-target configuration at the LHC
• The Present and Future of QCD
• AMS-02 antiprotons' consistency with a secondary astrophysical origin
• Cosmic-ray Antinuclei as Messengers of New Physics: Status and Outlook for the New Decade
• New physics searches with heavy-ion collisions at the LHC
• Possible studies at the first stage of the NICA collider operation with polarized and unpolarized proton and deuteron beams
• Implications of Lithium to Oxygen AMS-02 spectra on our understanding of cosmic-ray diffusion
• AAfrag: Interpolation routines for Monte Carlo results on secondary production in proton-proton, proton-nucleus and nucleus-nucleus interactions
• A Fixed-Target Programme at the LHC: Physics Case and Projected Performances for Heavy-Ion, Hadron, Spin and Astroparticle Studies
• Investigating the dark matter signal in the cosmic ray antiproton flux with the machine learning method
• Unleashing the full power of LHCb to probe Stealth New Physics
• Testing the universality of cosmic-ray nuclei from protons to oxygen with AMS-02
• Phenomenological NLO analysis of eta(c) production at the LHC in the collider and fixed-target modes
• Cosmic-ray antiprotons in the AMS-02 era: A sensitive probe of dark matter
• Initial and final state temperatures of antiproton emission sources in high energy collisions
• Open charm production and asymmetry in $p$Ne collisions at $\sqrt{s_{\mathrm{NN}}}=$ 68.5 GeV
• High-density gas target at the LHCb experiment
• Measurement of antiproton production from antihyperon decays in pHe collisions at $\sqrt{s_{NN}}=110$ GeV
• Charmonium production in $p$Ne collisions at $\sqrt{s_{\mathrm{NN}}}=68.5$ GeV
• Exploring Baryon Resonances with Transition Generalized Parton Distributions: Status and Perspectives
• A Neural-Network-defined Gaussian Mixture Model for particle identification applied to the LHCb fixed-target programme
• Nuclear gluons at RHIC in a multi-observable approach
• The LHCspin project
• Reanalysis of the Systematic Uncertainties in Cosmic-Ray Antiproton Flux
• Rapidity dependence of antideuteron coalescence in pp collisions at $\sqrt{s}$ = 13 TeV with ALICE
• Experimental summary: QCD session of the 54th Rencontres de Moriond (Moriond QCD 2019)
• The impact of future $D$- and $B$-meson measurements with the SMOG2 program at LHCb on the determination of nuclear parton distribution functions
• Results on heavy ion physics at LHCb
• Highlights from the LHCb experiment