Cosmic Ray Antiprotons at High Energies

Abstract

Cosmic ray antiprotons provide a powerful tool to probe dark matter annihilations in our galaxy. The sensitivity of this important channel is, however, diluted by sizable uncertainties in the secondary antiproton background. In this work, we improve the calculation of secondary antiproton production with a particular focus on the high energy regime. We employ the most recent collider data and identify a substantial increase of antiproton cross sections with energy. This increase is driven by the violation of Feynman scaling as well as by an enhanced strange hyperon production. The updated antiproton production cross sections are made publicly available for independent use in cosmic ray studies. In addition, we provide the correlation matrix of cross section uncertainties for the AMS-02 experiment. At high energies, the new cross sections improve the compatibility of the AMS-02 data with a pure secondary origin of antiprotons in cosmic rays.

arXiv comment26 pages, 9 figures. Ancillary files: antiproton cross section tables, cross section uncertainties of the antiproton flux, correlation matrix of cross section uncertainties for AMS-02

References in corpus (36)

• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• An Introduction to PYTHIA 8.2
• Systematic Measurements of Identified Particle Spectra in pp, d+Au and Au+Au Collisions from STAR
• Measurements of Strange Particle Production in $p+p$ Collisions at $\sqrt{s}$= 200 GeV
• Cosmic Rays below Z=30 in a diffusion model: new constraints on propagation parameters
• Production of pions, kaons and protons in pp collisions at $\sqrt{s}=900$ GeV with ALICE at the LHC
• Novel dark matter constraints from antiprotons in the light of AMS-02
• Measurement of the Inelastic Proton-Proton Cross Section at $\sqrt{s}=13$ TeV with the ATLAS Detector at the LHC
• Antiprotons from spallations of cosmic rays on interstellar matter
• Measurement of inelastic, single- and double-diffraction cross sections in proton-proton collisions at the LHC with ALICE
• Identified charged hadron production in p+p collisions at sqrt(s)=200 and 62.4 GeV
• Measurement of the inelastic proton-proton cross section at $\sqrt{s}=$ 13 TeV
• Possible dark matter annihilation signal in the AMS-02 antiproton data
• Strange Particle Production in pp Collisions at sqrt(s) = 0.9 and 7 TeV
• Strange particle production in proton-proton collisions at $\sqrt{s}=0.9$ TeV with ALICE at the LHC
• Study of the inclusive production of charged pions, kaons, and protons in pp collisions at sqrt(s) = 0.9, 2.76, and 7 TeV
• Measurement of pion, kaon and proton production in proton-proton collisions at $\sqrt{s}=7$ TeV
• Inclusive production of charged pions in p+C collisions at 158 GeV/c beam momentum
• Description of High-Energy pp Collisions Using Tsallis Thermodynamics: Transverse Momentum and Rapidity Distributions
• Inclusive production of charged pions in p+p collisions at 158 GeV/c beam momentum
• AMS-02 antiprotons, at last! Secondary astrophysical component and immediate implications for Dark Matter
• A new evaluation of the antiproton production cross section for cosmic ray studies
• Midrapidity antiproton-to-proton ratio in pp collisions at $\sqrt{s}=0.9$ and $7$ TeV measured by the ALICE experiment
• Inclusive production of protons, anti-protons and neutrons in p+p collisions at 158 GeV/c beam momentum
• Transverse Momentum Distributions in proton - proton Collisions at LHC Energies and Tsallis Thermodynamics
• New calculation of antiproton production by cosmic ray protons and nuclei
• AMS-02 Antiprotons Reloaded
• The Cosmic Ray Antiproton Background for AMS-02
• Experimental Confirmation that the Proton is Asymptotically a Black Disk
• Secondary antiprotons as a Galactic Dark Matter probe
• Mid-rapidity anti-baryon to baryon ratios in pp collisions at $\sqrt{s}$ = 0.9, 2.76 and 7 TeV measured by ALICE
• Galactic Cosmic Ray Nuclei as a Tool for Astroparticle Physics
• Parameterization of the antiproton inclusive production cross section on nuclei
• Measurement of the inelastic $pp$ cross-section at a centre-of-mass energy of $\sqrt{s}=7$ TeV
• On the Importance of Isospin Effects for the Interpretation of Nuclear Collisions

Cited by in corpus (46)

• Novel dark matter constraints from antiprotons in the light of AMS-02
• A Precision Search for WIMPs with Charged Cosmic Rays
• Scrutinizing the evidence for dark matter in cosmic-ray antiprotons
• Cosmic rays, anti-helium, and an old navy spotlight
• Multimessenger constraints on the dark matter interpretation of the Fermi-LAT Galactic center excess
• Constraining heavy dark matter with cosmic-ray antiprotons
• Production cross sections of cosmic antiprotons in the light of new data from the NA61 and LHCb experiments
• Cosmic-ray propagation with DRAGON2: II. Nuclear interactions with the interstellar gas
• Dark matter or correlated errors: Systematics of the AMS-02 antiproton excess
• AMS-02 antiprotons' consistency with a secondary astrophysical origin
• Cosmic-ray Antinuclei as Messengers of New Physics: Status and Outlook for the New Decade
• Cosmic Ray Models
• USINE: semi-analytical models for Galactic cosmic-ray propagation
• First Predicted Cosmic Ray Spectra, Primary-to-Secondary Ratios, and Ionization Rates from MHD Galaxy Formation Simulations
• 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
• Revisit of cosmic ray antiprotons from dark matter annihilation with updated constraints on the background model from AMS-02 and collider data
• Investigating the dark matter signal in the cosmic ray antiproton flux with the machine learning method
• Explaining the GeV antiproton/$\gamma -$ray excesses and W-boson mass anomaly in an inert two Higgs doublet model
• Prescriptions on antiproton cross section data for precise theoretical antiproton flux predictions
• New minimal, median, and maximal propagation models for dark matter searches with Galactic cosmic rays
• Explaining cosmic ray antimatter with secondaries from old supernova remnants
• A systematic study on the cosmic ray antiproton flux
• Supernova explosions of massive stars and cosmic rays
• Testing the universality of cosmic-ray nuclei from protons to oxygen with AMS-02
• Dark Matter Search in Space: Combined Analysis of Cosmic Ray Antiproton-to-Proton Flux Ratio and Positron Flux Measured by AMS-02
• New determination of the production cross section for secondary positrons and electrons in the Galaxy
• Deuteron and Antideuteron Production Simulation in Cosmic-ray Interactions
• Interpretation of the excess of antiparticles within a modified paradigm of galactic cosmic rays
• Large-scale Simulations of Antihelium Production in Cosmic-ray Interactions
• Constraining dark matter annihilation with cosmic ray antiprotons using neural networks
• Impact of QCD uncertainties on antiproton spectra from dark-matter annihilation
• Cosmic-ray antiprotons in the AMS-02 era: A sensitive probe of dark matter
• Robustness of dark matter constraints and interplay with collider searches for New Physics
• Production and acceleration of antinuclei in supernova shockwaves
• Measurement of antiproton production from antihyperon decays in pHe collisions at $\sqrt{s_{NN}}=110$ GeV
• $e^{+}$ and $\bar{p}$ production in $pp$ collisions and the cosmic-ray $e^{+}/\bar{p}$ flux ratio
• Consistency test of the AMS-02 antiproton excess with direct detection data based on the effective field theory approach
• AMS-02 antiprotons and dark matter: Trimmed hints and robust bounds
• Reanalysis of the Systematic Uncertainties in Cosmic-Ray Antiproton Flux
• Direct measurements of cosmic rays and their possible interpretations
• Non-Standard Neutrino Spectra From Annihilating Neutralino Dark Matter
• On the study of antiprotons yield in hadronic collisions at NICA SPD
• SM antideuteron background to indirect dark matter signals in galactic cosmic rays
• Combined analyses of the antiproton production from cosmic-ray interactions and its possible dark matter origin
• Do Galactic Antiprotons Come from Decaying Dark Matter?