Neutron skin and centrality classification in high-energy heavy-ion collisions at the LHC

Abstract

The concept of centrality in high-energy nuclear collisions has recently become a subject of an active debate. In particular, the experimental methods to determine the centrality that have given reasonable results for many observables in high-energy lead-lead collisions at the LHC have led to surprising behaviour in the case of proton-lead collisions. In this letter, we discuss the possibility to calibrate the experimental determination of centrality by asymmetries caused by mutually different spatial distributions of protons and neutrons inside the nuclei --- a well-known phenomenon in nuclear physics known as the neutron-skin effect.

arXiv comment11 pages, to appear in PLB

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Cited by in corpus (19)

• The Angantyr model for Heavy-Ion Collisions in PYTHIA8
• Global analysis of nuclear parton distribution functions and their uncertainties at next-to-next-to-leading order
• Determination of the neutron skin of ${}^{208}$Pb from ultrarelativistic nuclear collisions
• Progress in the Glauber model at collider energies
• The Present and Future of QCD
• Imaging the initial condition of heavy-ion collisions and nuclear structure across the nuclide chart
• Influence of the neutron-skin effect on nuclear isobar collisions at RHIC
• Measurement of $W^{\pm }$ boson production in Pb+Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV with the ATLAS detector
• Neutron-skin effect in direct-photon and charged hadron-production in Pb+Pb collisions at the LHC
• High-luminosity Large Hadron Collider with laser-cooled isoscalar ion beams
• Spin-isospin correlated configurations in complex nuclei and neutron skin effect in W${}^{\pm }$ production in high-energy proton-lead collisions
• Shadowing in inelastic nucleon-nucleon cross section?
• Influence of nuclear structure in relativistic heavy-ion collisions
• Probing impact-parameter dependent nuclear parton densities from double parton scatterings in heavy-ion collisions
• Effects of neutron-skin thickness on direct hard photon emission from reactions induced by the neutron-rich projectile ${}^{50}$Ca
• Centrality dependence of electroweak boson production in PbPb collisions at the LHC
• The effect of neutron skin on inclusive prompt photon production in Pb~+~Pb collisions at the LHC
• Peeling away neutron skin in ultracentral collisions of relativistic nuclei
• Neutron-skin effect and centrality dependence of high-$p_{\mathrm{T}}$ observables in nuclear collisions