Joint DLNP Seminar

Date and Time: Wednesday, 3 July 2019, at 11:00 AM

Venue: HMPRD Conference Hall (4 bld., room 209), Dzhelepov Laboratory of Nuclear Problems

Seminar topic: «First measurement of the quark-gluon source’s size of multipion production in pp-collisions at LHC»

Speaker: A. V. Schegelsky

Abstract:

Bose-Einstein correlation measured with the ATLAS is an effective tool to study the space structure of the production amplitude. Usually rather simple parametrization of particle-emission distribution function has been used – exponential or gaussian form. However if one consider a particle source as an expanding media the symmetric Levy distribution as the generalization exponential can be used. Then additional parameter – the index of stability – will appear. All parameters dependencies on the charged particle density and on the mean transverse momentum of the pion/hadron in the correlated pair are investigated. It looks as we do see quark-gluon matter with expected features.