Production of light (anti)nuclei in pp collisions at $\sqrt{s}=13$ TeV

Abstract

Understanding the production mechanism of light (anti)nuclei is one of the key challenges of nuclear physics and has important consequences for astrophysics, since it provides an input for indirect dark-matter searches in space. In this paper, the latest results about the production of light (anti)nuclei in pp collisions at $\sqrt{s}=13$ TeV are presented, focusing on the comparison with the predictions of coalescence and thermal models. For the first time, the coalescence parameters $B_2$ for deuterons and $B_3$ for helions are compared with parameter-free theoretical predictions that are directly constrained by the femtoscopic measurement of the source radius in the same event class. A fair description of the data with a Gaussian wave function is observed for both deuteron and helion, supporting the coalescence mechanism for the production of light (anti)nuclei in pp collisions. This method paves the way for future investigations of the internal structure of more complex nuclear clusters, including the hypertriton.

arXiv comment26 pages, 7 captioned figures, 2 tables, authors from page 21, published version, figures at http://alice-publications.web.cern.ch/node/7377

References in corpus (50)

• A Brief Introduction to PYTHIA 8.1
• The high-precision, charge-dependent Bonn nucleon-nucleon potential (CD-Bonn)
• Thermal phenomenology of hadrons from 200 AGeV S+S collisions
• 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
• Alignment of the ALICE Inner Tracking System with cosmic-ray tracks
• High-quality two-nucleon potentials up to fifth order of the chiral expansion
• Identified Particle Elliptic Flow in Au+Au Collisions at $\sqrt{s_{{}_{NN}}}=130$ GeV}
• Coalescence and flow in ultra-relativistic heavy ion collisions
• Production of light nuclei and anti-nuclei in pp and Pb-Pb collisions at LHC energies
• Pseudorapidity density of charged particles in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV
• Observation of the antimatter helium-4 nucleus
• ${}_{\Lambda }^3\mathrm{H}$ and ${}_{\bar{\Lambda }}^3\overline{\mathrm{H}}$ production in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Multiplicity dependence of light-flavor hadron production in pp collisions at $\sqrt{s}$ = 7 TeV
• Charm production in Pb+Pb collisions at the Large Hadron Collider energy
• Antimatter production in proton-proton and heavy-ion collisions at ultrarelativistic energies
• 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
• 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
• Multiplicity dependence of (multi-)strange hadron production in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Canonical statistical model analysis of p-p, p-Pb, and Pb-Pb collisions at the LHC
• Production of ${}^4$He and ${}^4\overline{\text{He}}$ in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV at the LHC
• Prospects to verify a possible dark matter hint in cosmic antiprotons with antideuterons and antihelium
• Cosmic rays, anti-helium, and an old navy spotlight
• Multiplicity dependence of light nuclei production at LHC energies in the canonical statistical model
• 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
• Antideuteron and antihelion production in root(s) = 130 GeV Au+Au collisions
• Testing coalescence and statistical-thermal production scenarios for (anti-)(hyper-)nuclei and exotic QCD objects at energies available at the CERN Large Hadron Collider
• Deuteron and antideuteron production in Au+Au collisions at sqrt(s_NN)=200 GeV
• 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
• (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
• Multiplicity dependence of light (anti-)nuclei production in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• On coalescence as the origin of nuclei in hadronic collisions
• Examination of the sensitivity of the thermal fits to heavy-ion hadron yield data to the modeling of the eigenvolume interactions
• General Analysis of Antideuteron Searches for Dark Matter
• Charged kaon femtoscopic correlations in pp collisions at $\sqrt{s}=7$ TeV
• Alternative coalescence model for deuteron, tritium, helium-3 and their antinuclei
• Production of (anti-)${}^3$He and (anti-)${}^3$H in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Measurement of the low-energy antideuteron inelastic cross section
• Jet-associated deuteron production in pp collisions at $\sqrt{s}=13$ TeV
• Beam energy dependence of $d$ and $\bar{d}$ productions in Au+Au collisions at RHIC

Cited by in corpus (13)

• The ALICE experiment: a journey through QCD
• Light (anti)nuclei production in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV
• Production of light (anti)nuclei in pp collisions at $\sqrt{s}=5.02$ TeV
• Enhanced deuteron coalescence probability in jets
• Theoretical investigation of the molecular nature of $D_{s0}^{\ast }(2317)$ and $D_{s1}(2460)$ and the possibility of observing the $D\bar{D}K$ bound state $K_{c\bar{c}}(4180)$ in inclusive $e^{+}{e}^{-}\to c\bar{c}$ collisions
• Cosmic Ray Antihelium from a Strongly Coupled Dark Sector
• Production of light antinuclei in $pp$ collisions by dynamical coalescence and their fluxes in cosmic rays near earth
• Measurement of the low-energy antitriton inelastic cross section
• Kaon-deuteron femtoscopy from unitarized chiral interactions
• Production of loosely-bound hadron molecules from bottomonium decays
• Toward universal coalescence models for antideuteron production
• Measurement of the production of (anti)(hyper)nuclei
• ${}^3$H and ${}^3$He nuclei production in a combined thermal and coalescence framework for heavy-ion collisions in the few-GeV energy regime