Show simple item record

dc.contributor.author
H1 and ZEUS Collaborations
dc.contributor.author
Abramowicz, Halina
dc.contributor.author
Grab, Christophorus
dc.contributor.author
et al.
dc.date.accessioned
2019-04-29T11:48:44Z
dc.date.available
2017-06-11T22:24:06Z
dc.date.available
2019-04-29T11:48:44Z
dc.date.issued
2015-12
dc.identifier.issn
1434-6044
dc.identifier.issn
1434-6052
dc.identifier.other
10.1140/epjc/s10052-015-3710-4
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/109288
dc.identifier.doi
10.3929/ethz-b-000109288
dc.description.abstract
A combination is presented of all inclusive deep inelastic cross sections previously published by the H1 and ZEUS collaborations at HERA for neutral and charged current e±p scattering for zero beam polarisation. The data were taken at proton beam energies of 920, 820, 575 and 460 GeV and an electron beam energy of 27.5 GeV. The data correspond to an integrated luminosity of about 1 fb−1 and span six orders of magnitude in negative four-momentum-transfer squared, Q2, and Bjorken x. The correlations of the systematic uncertainties were evaluated and taken into account for the combination. The combined cross sections were input to QCD analyses at leading order, next-to-leading order and at next-to-next-to-leading order, providing a new set of parton distribution functions, called HERAPDF2.0. In addition to the experimental uncertainties, model and parameterisation uncertainties were assessed for these parton distribution functions. Variants of HERAPDF2.0 with an alternative gluon parameterisation, HERAPDF2.0AG, and using fixed-flavour-number schemes, HERAPDF2.0FF, are presented. The analysis was extended by including HERA data on charm and jet production, resulting in the variant HERAPDF2.0Jets. The inclusion of jet-production cross sections made a simultaneous determination of these parton distributions and the strong coupling constant possible, resulting in αs(M2Z)=0.1183±0.0009(exp)±0.0005(model/parameterisation)±0.0012(hadronisation)+0.0037−0.0030(scale). An extraction of xFγZ3 and results on electroweak unification and scaling violations are also presented.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Springer
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.title
Combination of measurements of inclusive deep inelastic (Formula presented.) scattering cross sections and QCD analysis of HERA data
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2015-12-08
ethz.journal.title
The European Physical Journal C
ethz.journal.volume
75
en_US
ethz.journal.issue
12
en_US
ethz.journal.abbreviated
Eur. Phys. J. C
ethz.pages.start
580
en_US
ethz.size
98 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.identifier.nebis
001879220
ethz.publication.place
Heidelberg
en_US
ethz.publication.status
published
en_US
ethz.date.deposited
2017-06-11T22:24:16Z
ethz.source
ECIT
ethz.identifier.importid
imp593653df94f0044023
ethz.ecitpid
pub:170359
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2017-07-12T20:32:13Z
ethz.rosetta.lastUpdated
2019-04-29T11:48:59Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.atitle=Combination%20of%20measurements%20of%20inclusive%20deep%20inelastic%20(Formula%20presented.)%20scattering%20cross%20sections%20and%20QCD%20analysis%20of%20HERA%20data&rft.jtitle=The%20European%20Physical%20Journal%20C&rft.date=2015-12&rft.volume=75&rft.issue=12&rft.spage=580&rft.issn=1434-6044&1434-6052&rft.au=H1%20and%20ZEUS%20Collaborations&Abramowicz,%20Halina&Grab,%20Christophorus&et%20al.&rft.genre=article&
 Search via SFX

Files in this item

Thumbnail

Publication type

Show simple item record