Measurement of multiplicities of charged hadrons, pions and kaons in DIS at COMPASS

Measurement of multiplicities of charged hadrons, pions and kaons in DIS at COMPASS

Precise measurements of multiplicities of charged hadrons, pions and kaons in deep inelastic scattering were performed. The data were obtained by the COMPASS Collaboration by scattering 160 GeV muons off an isoscalar 6LiD target. The results were obtained in three-dimensional bins of the Bjorken sca...

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Main Author: Mitrofanov Nikolai
Format: Article
Language:English
Published: EDP Sciences 2018-01-01
Series:EPJ Web of Conferences
Online Access:https://doi.org/10.1051/epjconf/201817704007
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spelling doaj-872a4120ccd547ad87a41a3877baf9ec2021-08-02T11:16:30ZengEDP SciencesEPJ Web of Conferences2100-014X2018-01-011770400710.1051/epjconf/201817704007epjconf_ayss2018_04007Measurement of multiplicities of charged hadrons, pions and kaons in DIS at COMPASSMitrofanov NikolaiPrecise measurements of multiplicities of charged hadrons, pions and kaons in deep inelastic scattering were performed. The data were obtained by the COMPASS Collaboration by scattering 160 GeV muons off an isoscalar 6LiD target. The results were obtained in three-dimensional bins of the Bjorken scaling variable x, the relative virtual-photon energy y, and the fraction z of the virtual-photon energy carried by the produced hadron. A leading-order pQCD analysis was performed using the pion multiplicity results to extract quark fragmentation functions into pions. The results for the sum of the z-integrated multiplicities for pions and for kaons, differ from earlier results from the HERMES experiment. The results from the sum of the z-integrated K+ and K- multiplicities at high x point to a value of the non-strange quark fragmentation function larger than obtained by the earlier DSS fit.https://doi.org/10.1051/epjconf/201817704007
collection DOAJ
language English
format Article
sources DOAJ
author Mitrofanov Nikolai
spellingShingle Mitrofanov Nikolai
Measurement of multiplicities of charged hadrons, pions and kaons in DIS at COMPASS
EPJ Web of Conferences
author_facet Mitrofanov Nikolai
author_sort Mitrofanov Nikolai
title Measurement of multiplicities of charged hadrons, pions and kaons in DIS at COMPASS
title_short Measurement of multiplicities of charged hadrons, pions and kaons in DIS at COMPASS
title_full Measurement of multiplicities of charged hadrons, pions and kaons in DIS at COMPASS
title_fullStr Measurement of multiplicities of charged hadrons, pions and kaons in DIS at COMPASS
title_full_unstemmed Measurement of multiplicities of charged hadrons, pions and kaons in DIS at COMPASS
title_sort measurement of multiplicities of charged hadrons, pions and kaons in dis at compass
publisher EDP Sciences
series EPJ Web of Conferences
issn 2100-014X
publishDate 2018-01-01
description Precise measurements of multiplicities of charged hadrons, pions and kaons in deep inelastic scattering were performed. The data were obtained by the COMPASS Collaboration by scattering 160 GeV muons off an isoscalar 6LiD target. The results were obtained in three-dimensional bins of the Bjorken scaling variable x, the relative virtual-photon energy y, and the fraction z of the virtual-photon energy carried by the produced hadron. A leading-order pQCD analysis was performed using the pion multiplicity results to extract quark fragmentation functions into pions. The results for the sum of the z-integrated multiplicities for pions and for kaons, differ from earlier results from the HERMES experiment. The results from the sum of the z-integrated K+ and K- multiplicities at high x point to a value of the non-strange quark fragmentation function larger than obtained by the earlier DSS fit.
url https://doi.org/10.1051/epjconf/201817704007
work_keys_str_mv AT mitrofanovnikolai measurementofmultiplicitiesofchargedhadronspionsandkaonsindisatcompass
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