Search for nonextensivity in electron-proton interactions at √s=300 GeV

Abstract

Study of canonical entropy in electron-proton interactions at √𝑠 =300 GeV is presented. The precision data collected by the H1 experiment at the HERA in different ranges of invariant hadronic mass 𝑊 and the squared four-momentum exchange 𝑄2 in electron-proton (𝑒⁢𝑝) interactions have been analyzed in the ensemble theory approach. The canonical partition function relates to the multiplicity distribution which is often studied in collider experiments. We use the canonical ensemble partition function to explore the dynamics of hadron production in 𝑒⁢𝑝 interactions by devising different methods to find the entropic parameter and the collision temperature. The inverse slope of the transverse momentum spectrum of produced hadrons also relates to the temperature. In the recent past, the CMS, ATLAS, and ALICE experiments at the LHC have studied the charged hadron transverse momentum and particle distributions in proton-proton and proton-nucleus interactions by using the Tsallis function within this approach. A detailed investigation into the role of the system volume and relation amongst different dynamical parameters reveals interesting results.