Search academic texts

Information × Registration Number 0213U003385, 0112U007405 , R & D reports Title Correlation femtoscopy for nucleus-nucleus collisions at Large Hadron Collider in hybrid hydro-kinetic model popup.stage_title Head Karpenko Iurii Olexandrovich, Registration Date 04-02-2013 Organization Bogolyubov Institute for Theoretical Physics of National Academy of Sciences of Ukraine popup.description2 The work is devoted to the studies of the dynamics of high multiplicity events in proton-proton collisions at 0.9 and 7 TeV CMS energies at Large Hadron Collider. EPOS2 phenomenological multiple particle production model is used for the studies. The model employ the methods of quantum field theory, statistical physics, relativistic hydrodynamics and relativistic kinetics. It is established if the hydrodynamic scenario of evolution of the dense and hot matter created in such proton-proton scatterings is consistent with the experimental data for two-hadron (pion) correlation functions measured by ALICE collaboration at LHC. Such correlation functions show the effects of quantum (Bose-Einstein) statistics, and makes it possible to measure the space-time characteristics of hadron emission process at the scales of 10^(-15) m and 10^(-23) sec. respectively. As a result of the studies we see the evidence of hydrodynamic character of matter expansion in the events with the highest multiplicity of produced (charged) hadrons in pp collisions at LHC. This can hint at the possible creation of tiny droplets of matter in quark-gluon plasma phase not only in heavy ion collision, but also in "elementary" proton-proton collisions. The results obtained can also be the evidence that the thermalization process in the multiple particle production processes can be a more universal phenomenon, happening not only in heavy ion, but also in proton-proton reactions.54815481 Product Description popup.authors Борисова Марина Сергіївна Карпенко Юрій Олександрович Набока Владислав Юрійович Шаповал Володимир Миколайович popup.nrat_date 2020-04-02 Close