Contributions from higher twist effects to the quark fragmentation functions in neutrino data

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Studies quark fragmentation functions using approximately 3500 charged current events induced in the bubble chamber Gargamelle from neutrinos of the SPS wide band guide beam, having (E/sub v/) approximately=25 Ge V. The Q/sup 2/ region covered by this experiment is Q/sup 2/=0-40 GeV /sup 2/, the mea...

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Autor principal: Matteuzzi, C
Lenguaje:eng
Publicado: 1981
Materias:
Particle Physics - Phenomenology
Acceso en línea:http://cds.cern.ch/record/134682
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author Matteuzzi, C
author_facet Matteuzzi, C
author_sort Matteuzzi, C
collection CERN
description Studies quark fragmentation functions using approximately 3500 charged current events induced in the bubble chamber Gargamelle from neutrinos of the SPS wide band guide beam, having (E/sub v/) approximately=25 Ge V. The Q/sup 2/ region covered by this experiment is Q/sup 2/=0-40 GeV /sup 2/, the mean value being (Q/sup 2/) approximately=7.5 GeV/sup 2/. Possible contributions from higher twist effects are looked for in the n-th moments M/sup NS/(n, Q/sup 2/) of fragmentation functions, and are found to be large and strongly dependent on n. A correlation between the variables z=E/sub pi //E/sub H/ and y=E/sub H//E/sub nu / was found in the data in the region Q/sup 2/=1-10 GeV/sup 2/, which could be explained in terms of higher twist effects. (7 refs).
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1981
record_format invenio
spelling cern-1346822019-09-30T06:29:59Zhttp://cds.cern.ch/record/134682engMatteuzzi, CContributions from higher twist effects to the quark fragmentation functions in neutrino dataParticle Physics - PhenomenologyStudies quark fragmentation functions using approximately 3500 charged current events induced in the bubble chamber Gargamelle from neutrinos of the SPS wide band guide beam, having (E/sub v/) approximately=25 Ge V. The Q/sup 2/ region covered by this experiment is Q/sup 2/=0-40 GeV /sup 2/, the mean value being (Q/sup 2/) approximately=7.5 GeV/sup 2/. Possible contributions from higher twist effects are looked for in the n-th moments M/sup NS/(n, Q/sup 2/) of fragmentation functions, and are found to be large and strongly dependent on n. A correlation between the variables z=E/sub pi //E/sub H/ and y=E/sub H//E/sub nu / was found in the data in the region Q/sup 2/=1-10 GeV/sup 2/, which could be explained in terms of higher twist effects. (7 refs).CERN-EP-80-124oai:cds.cern.ch:1346821981
spellingShingle Particle Physics - Phenomenology
Matteuzzi, C
Contributions from higher twist effects to the quark fragmentation functions in neutrino data
title Contributions from higher twist effects to the quark fragmentation functions in neutrino data
title_full Contributions from higher twist effects to the quark fragmentation functions in neutrino data
title_fullStr Contributions from higher twist effects to the quark fragmentation functions in neutrino data
title_full_unstemmed Contributions from higher twist effects to the quark fragmentation functions in neutrino data
title_short Contributions from higher twist effects to the quark fragmentation functions in neutrino data
title_sort contributions from higher twist effects to the quark fragmentation functions in neutrino data
topic Particle Physics - Phenomenology
url http://cds.cern.ch/record/134682
work_keys_str_mv AT matteuzzic contributionsfromhighertwisteffectstothequarkfragmentationfunctionsinneutrinodata

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