Measurement of di-jet cross-sections in photoproduction and photon structure

The production of hard di-jet events in photoproduction at HERA is dominated by resolved photon processes in which a parton in the photon with momentum fraction x(y) is scattered from a parton in the proton. These processes are sensitive to the quark and gluon content of the photon. The differential...

Full beskrivning

Bibliografiska uppgifter
Huvudupphovsmän: Adloff, C, Andreev, V, Andrieu, B, Arkadov, V, Astvatsatourov, A, Ayyaz, I, Babaev, A, Bahr, J, Baranov, P, Barrelet, E, Bartel, W, Bassler, U, Bate, P, Beglarian, A, Behnke, O, Beier, C, Belousov, A, Benisch, T, Berger, C, Bernardi, G, Berndt, T, Bertrand-Coremans, G, Bizot, J, Borras, K, Boudry, V
Materialtyp: Journal article
Publicerad: 2000
_version_ 1826257907018104832
author Adloff, C
Andreev, V
Andrieu, B
Arkadov, V
Astvatsatourov, A
Ayyaz, I
Babaev, A
Bahr, J
Baranov, P
Barrelet, E
Bartel, W
Bassler, U
Bate, P
Beglarian, A
Behnke, O
Beier, C
Belousov, A
Benisch, T
Berger, C
Bernardi, G
Berndt, T
Bertrand-Coremans, G
Bizot, J
Borras, K
Boudry, V
author_facet Adloff, C
Andreev, V
Andrieu, B
Arkadov, V
Astvatsatourov, A
Ayyaz, I
Babaev, A
Bahr, J
Baranov, P
Barrelet, E
Bartel, W
Bassler, U
Bate, P
Beglarian, A
Behnke, O
Beier, C
Belousov, A
Benisch, T
Berger, C
Bernardi, G
Berndt, T
Bertrand-Coremans, G
Bizot, J
Borras, K
Boudry, V
author_sort Adloff, C
collection OXFORD
description The production of hard di-jet events in photoproduction at HERA is dominated by resolved photon processes in which a parton in the photon with momentum fraction x(y) is scattered from a parton in the proton. These processes are sensitive to the quark and gluon content of the photon. The differential di-jet cross-section dσ/dlog(x(y)) is presented here, measured in tagged photoproduction at HERA using data taken with the H1 detector, corresponding to an integrated luminosity of 7.2 pb-1. Using a restricted data sample at high transverse jet energy, E(T,jet) > 6 GeV, the effective patton density f(y,eff(x(y)) = [q(x(y)) + qβ(x(y)) + 9/4 g(x(y))] in the photon in leading order QCD is measured down to x(y) = 0.05 from which the gluon density in the photon is derived. (C) 2000 Elsevier Science B.V.
first_indexed 2024-03-06T18:25:35Z
format Journal article
id oxford-uuid:07d8a3b7-996e-49e4-8609-000fe81ae62b
institution University of Oxford
last_indexed 2024-03-06T18:25:35Z
publishDate 2000
record_format dspace
spelling oxford-uuid:07d8a3b7-996e-49e4-8609-000fe81ae62b2022-03-26T09:09:45ZMeasurement of di-jet cross-sections in photoproduction and photon structureJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:07d8a3b7-996e-49e4-8609-000fe81ae62bSymplectic Elements at Oxford2000Adloff, CAndreev, VAndrieu, BArkadov, VAstvatsatourov, AAyyaz, IBabaev, ABahr, JBaranov, PBarrelet, EBartel, WBassler, UBate, PBeglarian, ABehnke, OBeier, CBelousov, ABenisch, TBerger, CBernardi, GBerndt, TBertrand-Coremans, GBizot, JBorras, KBoudry, VThe production of hard di-jet events in photoproduction at HERA is dominated by resolved photon processes in which a parton in the photon with momentum fraction x(y) is scattered from a parton in the proton. These processes are sensitive to the quark and gluon content of the photon. The differential di-jet cross-section dσ/dlog(x(y)) is presented here, measured in tagged photoproduction at HERA using data taken with the H1 detector, corresponding to an integrated luminosity of 7.2 pb-1. Using a restricted data sample at high transverse jet energy, E(T,jet) > 6 GeV, the effective patton density f(y,eff(x(y)) = [q(x(y)) + qβ(x(y)) + 9/4 g(x(y))] in the photon in leading order QCD is measured down to x(y) = 0.05 from which the gluon density in the photon is derived. (C) 2000 Elsevier Science B.V.
spellingShingle Adloff, C
Andreev, V
Andrieu, B
Arkadov, V
Astvatsatourov, A
Ayyaz, I
Babaev, A
Bahr, J
Baranov, P
Barrelet, E
Bartel, W
Bassler, U
Bate, P
Beglarian, A
Behnke, O
Beier, C
Belousov, A
Benisch, T
Berger, C
Bernardi, G
Berndt, T
Bertrand-Coremans, G
Bizot, J
Borras, K
Boudry, V
Measurement of di-jet cross-sections in photoproduction and photon structure
title Measurement of di-jet cross-sections in photoproduction and photon structure
title_full Measurement of di-jet cross-sections in photoproduction and photon structure
title_fullStr Measurement of di-jet cross-sections in photoproduction and photon structure
title_full_unstemmed Measurement of di-jet cross-sections in photoproduction and photon structure
title_short Measurement of di-jet cross-sections in photoproduction and photon structure
title_sort measurement of di jet cross sections in photoproduction and photon structure
work_keys_str_mv AT adloffc measurementofdijetcrosssectionsinphotoproductionandphotonstructure
AT andreevv measurementofdijetcrosssectionsinphotoproductionandphotonstructure
AT andrieub measurementofdijetcrosssectionsinphotoproductionandphotonstructure
AT arkadovv measurementofdijetcrosssectionsinphotoproductionandphotonstructure
AT astvatsatourova measurementofdijetcrosssectionsinphotoproductionandphotonstructure
AT ayyazi measurementofdijetcrosssectionsinphotoproductionandphotonstructure
AT babaeva measurementofdijetcrosssectionsinphotoproductionandphotonstructure
AT bahrj measurementofdijetcrosssectionsinphotoproductionandphotonstructure
AT baranovp measurementofdijetcrosssectionsinphotoproductionandphotonstructure
AT barrelete measurementofdijetcrosssectionsinphotoproductionandphotonstructure
AT bartelw measurementofdijetcrosssectionsinphotoproductionandphotonstructure
AT bassleru measurementofdijetcrosssectionsinphotoproductionandphotonstructure
AT batep measurementofdijetcrosssectionsinphotoproductionandphotonstructure
AT beglariana measurementofdijetcrosssectionsinphotoproductionandphotonstructure
AT behnkeo measurementofdijetcrosssectionsinphotoproductionandphotonstructure
AT beierc measurementofdijetcrosssectionsinphotoproductionandphotonstructure
AT belousova measurementofdijetcrosssectionsinphotoproductionandphotonstructure
AT benischt measurementofdijetcrosssectionsinphotoproductionandphotonstructure
AT bergerc measurementofdijetcrosssectionsinphotoproductionandphotonstructure
AT bernardig measurementofdijetcrosssectionsinphotoproductionandphotonstructure
AT berndtt measurementofdijetcrosssectionsinphotoproductionandphotonstructure
AT bertrandcoremansg measurementofdijetcrosssectionsinphotoproductionandphotonstructure
AT bizotj measurementofdijetcrosssectionsinphotoproductionandphotonstructure
AT borrask measurementofdijetcrosssectionsinphotoproductionandphotonstructure
AT boudryv measurementofdijetcrosssectionsinphotoproductionandphotonstructure