Novel model for particle emission in small collision systems

Abstract

Collider experiments provide an opportunity to produce particles at close distances and momenta. The measured correlation functions between particles can provide information on both the effective emission source and the interaction potential. In recent years, experiments at the LHC have shown that precision studies of the strong interaction are possible using correlation techniques, provided a good handle on the source function. The current work presents a new numerical framework called Common Emission in CATS (CECA), capable of simulating the effective emission source of an N-body system based on the properties of the single particles. The framework differentiates between primordial particle emission and particle production through resonances, allowing to verify the hypothesis proposed by the ALICE collaboration that a common baryon-baryon emission source is present in small collision systems. The new framework is used to analyze ALICE data on pp and p$\Lambda$ correlations and compare the results to previous studies based on the common emission source scenario. It is demonstrated that the best fit to the p$\Lambda$ correlation data is obtained using a scattering length of $1.15\pm 0.07$ fm in the S=1 channel.

arXiv commentversion 2: corrected a typo (one-pion --> two-pion); based on a received comment, chEFT is not described as a model; an accidental second recurrence of a reference is removed

References in corpus (38)

• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• An accurate nucleon-nucleon potential with charge-independence breaking
• A Multi-Phase Transport Model for Relativistic Heavy Ion Collisions
• Collective flow and viscosity in relativistic heavy-ion collisions
• EPOS LHC : test of collective hadronization with LHC data
• Decoding the phase structure of QCD via particle production at high energy
• Femtoscopy in Relativistic Heavy Ion Collisions: Two Decades of Progress
• Strangeness in nuclear physics
• Particle Interferometry for Relativistic Heavy-Ion Collisions
• Hyperon Puzzle: Hints from Quantum Monte Carlo Calculations
• Hyperon-nucleon interaction at next-to-leading order in chiral effective field theory
• Pion interferometry in Au+Au collisions at $\sqrt{{\mathrm{s}}_{{}_{\mathrm{NN}}}}$ = 200 GeV
• Two-Particle Correlations in Relativistic Heavy-Ion Collisions
• Unveiling the strong interaction among hadrons at the LHC
• Is there a flavor hierarchy in the deconfinement transition of QCD?
• $\Lambda \Lambda$ and N$\Xi$ interactions from Lattice QCD near the physical point
• Study of the strong interaction among hadrons with correlations at the LHC
• p-p, p-$\Lambda$ and $\Lambda$-$\Lambda$ correlations studied via femtoscopy in pp reactions at $\sqrt{s}$ = 7 TeV
• Hyperon-nucleon interaction within chiral effective field theory revisited
• Experimental evidence for an attractive p-$\varphi$ interaction
• Search for a common baryon source in high-multiplicity pp collisions at the LHC
• Hyperon-nucleon three-body forces and strangeness in neutron stars
• Multiplicity dependence of (multi-)strange hadron production in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Multiplicity dependence of $\pi$, K, and p production in pp collisions at $\sqrt{s}=13$ TeV
• Scattering studies with low-energy kaon-proton femtoscopy in proton-proton collisions at the LHC
• A femtoscopic Correlation Analysis Tool using the Schrödinger equation (CATS)
• Resonance contributions to HBT correlation radii
• One-dimensional pion, kaon, and proton femtoscopy in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ =2.76 TeV
• First study of the two-body scattering involving charm hadrons
• Transverse sphericity of primary charged particles in minimum bias proton-proton collisions at $\sqrt{s}=0.9$, 2.76 and 7 TeV
• Hyperon-nucleon interaction in chiral effective field theory at next-to-next-to-leading order
• Constraining the $\overline{\mathrm{K}}\mathrm{N}$ coupled channel dynamics using femtoscopic correlations at the LHC
• Pion, kaon, and proton femtoscopy in Pb--Pb collisions at $\sqrt{s_{\mathrm{NN}}}$=2.76 TeV modeled in 3+1D hydrodynamics
• Femtoscopy correlations of kaons in $Pb+Pb$ collisions at LHC within hydrokinetic model
• Predictions of hadron abundances in pp collisions at the LHC
• First measurement of the $\Lambda$-$\Xi$ interaction in proton-proton collisions at the LHC
• Chiral SU(3) dynamics and $\Lambda$-hyperons in the nuclear medium

Cited by in corpus (7)

• The $p\Lambda$ and $pp\Lambda$ correlation functions
• Two-particle Bose-Einstein correlations and their Lévy parameters in PbPb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Exploring the $\varphi \text{-}\alpha$ interaction via femtoscopic study
• Femtoscopic study of the $\Omega \alpha$ interaction in heavy-ion collisions
• Study of the deuterons emission time in pp collisions at the LHC via kaon-deuteron correlations
• Investigating the p-${\pi }^{\pm }$ and p-p-${\pi }^{\pm }$ dynamics with femtoscopy in pp collisions at $\sqrt{s}=13$ TeV
• Investigating the pion emission source in pp collisions using the AMPT model with sub-nucleon structure