firstname = "Vladimir"
lastname = "Vechernin"
email = "vechernin@pobox.spbu.ru"
affiliation = "Saint-Petersburg State University"
city = "Saint-Petersburg"
country = "Russia"
passportname = ""
birthday = ""
citizenship = ""
passportnumber = ""
passportissued = ""
passportexpire = ""
workplace = ""
workaddress = ""
visadates = ""
talktitle = "Correlation between multiplicities in windows separated in azimuth and rapidity"
section = "B - Nuclear physics"
talkabstract = "The forward-backward (FB) multiplicity correlations in two windows  separated in rapidity and azimuth are analyzed in the framework of the model with independent identical emitters (strings). Along with the long-range contribution, originating from the fluctuation in the number of strings, the short-range contribution, originating from the correlation between multiplicities produced by a single emitter is also taken into account. It is shown that the presence of the correlations between particles produced by one string turns the strings into non-poissonian emitters. The dependencies of the correlation coefficient on the rapidity and azimuthal acceptance of the windows and on the corresponding gaps between windows are studied. It is shown that the analysis of these dependencies enables to separate the contributions of two above mechanisms. The connection of the FB multiplicity correlation coefficient with double inclusive cross section and two-particle correlation function is also traced. The suitable observables are proposed.
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comments = ""
submit = 0