BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CERN//INDICO//EN
BEGIN:VEVENT
SUMMARY:Multiplicity fluctuations in the string model in pp collisions at 
 LHC energies
DTSTART;VALUE=DATE-TIME:20241025T060000Z
DTEND;VALUE=DATE-TIME:20241025T061500Z
DTSTAMP;VALUE=DATE-TIME:20260517T030425Z
UID:indico-contribution-4321@cern.ch
DESCRIPTION:Speakers: Svetlana Belokurova (Saint Petersburg State Universi
 ty)\nThe fluctuation of the number of charged particles in a given rapidit
 y interval of observation was studied. Analytical expressions and the Mont
 e Carlo modeling in the framework of a quark-gluon string model were used 
 to calculate scaled and robust variance of the multiplicity in the case wi
 th string fusion and without it. The used distribution of primary strings 
 in the transverse plane is consistent with the Regge approach. The string 
 fusion effects were taken into account by implementing of a lattice (grid)
  in the impact parameter plane. \nThe value of the scaled and robust varia
 nce of the multiplicity for pp collisions is calculated at three initial e
 nergies: 0.9\, 2.76 and 7 TeV\, both with and without taking into account 
 the processes of string fusion. The results were compared with the data ob
 tained by ALICE collaborations at CERN. The results of these analytical ca
 lculations coincide with the results of MC simulations\, this testifies to
  the correctness of the MC algorithm used. It is shown that for pp collisi
 ons at LHC energies\, the fluctuations of the particle number from a given
  string cluster are\, due to the presence of short-range correlations betw
 een particles\, significantly larger than the Poisson ones.\n\nThe authors
  acknowledge Saint-Petersburg State University for a research project 9541
 3904\n\nhttps://indico.particle.mephi.ru/event/436/contributions/4321/
LOCATION: Moskvorechye 2
URL:https://indico.particle.mephi.ru/event/436/contributions/4321/
END:VEVENT
END:VCALENDAR