Hadronic resonance production and interaction in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>p</mml:mi><mml:mtext>−</mml:mtext><mml:mi>Pb</mml:mi></mml:math> collisions at LHC energies in EPOS3
A. G. Knospe, C. Markert, K. Werner, Jan Steinheimer, Marcus Bleicher
Abstract
Using the EPOS3 model with the Ultrarelativistic Quantum Molecular Dynamics (UrQMD) model to describe the hadronic phase, we study the production of short-lived hadronic resonances and the modification of their yields and ${p}_{\mathrm{T}}$ spectra in $p\text{\ensuremath{-}}\mathrm{Pb}$ collisions at $\sqrt{{s}_{NN}}=$ 5.02 TeV. High-multiplicity $p\text{\ensuremath{-}}\mathrm{Pb}$ collisions exhibit similar behavior to midperipheral Pb-Pb collisions at LHC energies, and we find indications of a short-lived hadronic phase in $p\text{\ensuremath{-}}\mathrm{Pb}$ collisions that can modify resonance yields and ${p}_{\mathrm{T}}$ spectra through scattering processes. The evolution of resonance production is investigated as a function of the system size, which is related to the lifetime of the hadronic phase in order to study the onset and evolution of scattering effects in $p\text{\ensuremath{-}}\mathrm{Pb}$ collisions. We also study hadron production separately in the core and corona parts of these collisions and explore how this division affects the total particle yields as the system size increases.