Rapidity dependence of antideuteron coalescence in pp collisions at $\sqrt{s}$ = 13 TeV with ALICE

Abstract

The production yields of antideuterons and antiprotons are measured in pp collisions at a center-of-mass energy of $\sqrt{s}=13$ TeV, as a function of transverse momentum ($p_{\mathrm{T}}$) and rapidity ($y$), for the first time rapidity-differentially up to $|y|=0.7$. The measured spectra are used to study the $p_{\mathrm{T}}$ and rapidity dependence of the coalescence parameter $B_2$, which quantifies the coalescence probability of antideuterons. The $p_{\mathrm{T}}$ and rapidity dependence of the obtained $B_2$ is extrapolated for $p_{\mathrm{T}}>1.7$ GeV/$c$ and $|y|>0.7$ using the phenomenological antideuteron production model implemented in PYTHIA 8.3 as well as a baryon coalescence afterburner model based on EPOS 3. Such measurements are of interest to the astrophysics community, since they can be used for the calculation of the flux of antinuclei from cosmic rays, in combination with coalescence models.

arXiv comment23 pages, 4 captioned figures, 1 table, authors from page 17, published version, figures at http://alice-publications.web.cern.ch/node/11236

References in corpus (55)

• LHCb Detector Performance
• Tuning PYTHIA 8.1: the Monash 2013 Tune
• Performance of the ALICE Experiment at the CERN LHC
• Decoding the phase structure of QCD via particle production at high energy
• The ALICE TPC, a large 3-dimensional tracking device with fast readout for ultra-high multiplicity events
• Production of light nuclei, hypernuclei and their antiparticles in relativistic nuclear collisions
• Performance of the ALICE VZERO system
• Event-by-Event Simulation of the Three-Dimensional Hydrodynamic Evolution from Flux Tube Initial Conditions in Ultrarelativistic Heavy Ion Collisions
• Coalescence and flow in ultra-relativistic heavy ion collisions
• Antideuterons as a Signature of Supersymmetric Dark Matter
• Analysing radial flow features in p-Pb and p-p collisions at several TeV by studying identified particle production in EPOS3
• Observation of the antimatter helium-4 nucleus
• Antimatter production in proton-proton and heavy-ion collisions at ultrarelativistic energies
• Measurement of the cosmic-ray antiproton spectrum at solar minimum with a long-duration balloon flight over Antarctica
• Study of the $\Lambda$-$\Lambda$ interaction with femtoscopy correlations in pp and p-Pb collisions at the LHC
• Production of deuterons, tritons, ${}^3$He nuclei and their anti-nuclei in pp collisions at $\sqrt{\text{s}}$ = 0.9, 2.76 and 7 TeV
• Beam energy dependence of (anti-)deuteron production in Au+Au collisions at RHIC
• Search for a common baryon source in high-multiplicity pp collisions at the LHC
• Suppression of light nuclei production in collisions of small systems at the Large Hadron Collider
• Canonical statistical model analysis of p-p, p-Pb, and Pb-Pb collisions at the LHC
• Multiplicity dependence of $\pi$, K, and p production in pp collisions at $\sqrt{s}=13$ TeV
• Production of ${}^4$He and ${}^4\overline{\text{He}}$ in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV at the LHC
• Review of the theoretical and experimental status of dark matter identification with cosmic-ray antideuterons
• Cosmic rays, anti-helium, and an old navy spotlight
• Investigation of the p-${\Sigma }^0$ interaction via femtoscopy in pp collisions
• The thermal proton yield anomaly in Pb-Pb collisions at the LHC and its resolution
• Where do the AMS-02 anti-helium events come from?
• Centrality dependence of hadronization and chemical freeze-out conditions in heavy ion collisions at \sqrt s_{NN} = 2.76 TeV
• Deuteron and antideuteron production in Au+Au collisions at sqrt(s_NN)=200 GeV
• Measurement of antiproton production in $\mathrm{pHe}$ collisions at $\sqrt{s_{NN}}=110$ GeV
• Precision measurement of the mass difference between light nuclei and anti-nuclei
• Determination of the event collision time with the ALICE detector at the LHC
• Measurement of deuteron spectra and elliptic flow in Pb-Pb collisions at $\sqrt{{\mathbf{s}}_{\mathrm{NN}}}$ = 2.76 TeV at the LHC
• A Comparison of p-p, p-Pb, Pb-Pb Collisions in the Thermal Model: Multiplicity Dependence of Thermal Parameters
• Spectra and flow of light nuclei in relativistic heavy ion collisions at RHIC and the LHC
• Nuclear coalescence from correlation functions
• Measurements of Light Nuclei Production in 11.5 A GeV/c Au+Pb Heavy-Ion Collisions
• (Anti-)Deuteron production in pp collisions at $\sqrt{s}=13$ TeV
• Multiplicity dependence of (anti-)deuteron production in pp collisions at $\sqrt{s}$ = 7 TeV
• Antideuteron yield at the AGS and coalescence implications
• Multiplicity dependence of light (anti-)nuclei production in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Examination of the sensitivity of the thermal fits to heavy-ion hadron yield data to the modeling of the eigenvolume interactions
• Alternative coalescence model for deuteron, tritium, helium-3 and their antinuclei
• Hypertriton production in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• A realistic coalescence model for deuteron production
• Production of light (anti)nuclei in pp collisions at $\sqrt{s}=5.02$ TeV
• Deuteron and Antideuteron Production Simulation in Cosmic-ray Interactions
• Rapidity dependence of deuteron production in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV
• An Alternative Formation Model for Antideuterons from Dark Matter
• Elliptic and triangular flow of (anti)deuterons in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Reevaluation of the cosmic antideuteron flux from cosmic-ray interactions and from exotic sources
• Jet-associated deuteron production in pp collisions at $\sqrt{s}=13$ TeV
• Enhanced deuteron coalescence probability in jets
• Measurement of the (anti-)${}^3$He elliptic flow in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Helium identification with LHCb

Cited by in corpus (1)

• Toward universal coalescence models for antideuteron production