Measurement of the cross-section for Z->e+e- production in pp collisions at sqrt{s}=7TeV

A measurement of the cross-section for pp->Z->e+e- is presented using data at sqrt{s}=7TeV corresponding to an integrated luminosity of 0.94 fb^{-1}. The process is measured within the kinematic acceptance pT>20GeV/c and 2<\eta<4.5 for the daughter electrons and di...

Cijeli opis

Bibliografski detalji
Glavni autori: collaboration, L, Aaij, R, Beteta, C, Adametz, A, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Cartelle, P, Jr, A, Amato, S, Amhis, Y, Anderlini, L, Anderson, J, Andreassen, R, Appleby, R, Gutierrez, O, Archilli, F, Artamonov, A
Format: Journal article
Jezik:English
Izdano: 2012
_version_ 1826299639856365568
author collaboration, L
Aaij, R
Beteta, C
Adametz, A
Adeva, B
Adinolfi, M
Adrover, C
Affolder, A
Ajaltouni, Z
Albrecht, J
Alessio, F
Alexander, M
Ali, S
Alkhazov, G
Cartelle, P
Jr, A
Amato, S
Amhis, Y
Anderlini, L
Anderson, J
Andreassen, R
Appleby, R
Gutierrez, O
Archilli, F
Artamonov, A
author_facet collaboration, L
Aaij, R
Beteta, C
Adametz, A
Adeva, B
Adinolfi, M
Adrover, C
Affolder, A
Ajaltouni, Z
Albrecht, J
Alessio, F
Alexander, M
Ali, S
Alkhazov, G
Cartelle, P
Jr, A
Amato, S
Amhis, Y
Anderlini, L
Anderson, J
Andreassen, R
Appleby, R
Gutierrez, O
Archilli, F
Artamonov, A
author_sort collaboration, L
collection OXFORD
description A measurement of the cross-section for pp->Z->e+e- is presented using data at sqrt{s}=7TeV corresponding to an integrated luminosity of 0.94 fb^{-1}. The process is measured within the kinematic acceptance pT>20GeV/c and 2<\eta<4.5 for the daughter electrons and dielectron invariant mass in the range 60--120GeV/c^2. The cross-section is determined to be \sigma(pp->Z->e+e-)=76.0+-0.8+-2.0+-2.6pb where the first uncertainty is statistical, the second is systematic and the third is the uncertainty in the luminosity. The measurement is performed as a function of Z rapidity and as a function of an angular variable which is closely related to the Z transverse momentum. The results are compared with previous LHCb measurements and with theoretical predictions from QCD.
first_indexed 2024-03-07T05:05:00Z
format Journal article
id oxford-uuid:d99ee283-3e6a-4aaa-87ce-f3aa969f9f33
institution University of Oxford
language English
last_indexed 2024-03-07T05:05:00Z
publishDate 2012
record_format dspace
spelling oxford-uuid:d99ee283-3e6a-4aaa-87ce-f3aa969f9f332022-03-27T08:57:16ZMeasurement of the cross-section for Z->e+e- production in pp collisions at sqrt{s}=7TeVJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:d99ee283-3e6a-4aaa-87ce-f3aa969f9f33EnglishSymplectic Elements at Oxford2012collaboration, LAaij, RBeteta, CAdametz, AAdeva, BAdinolfi, MAdrover, CAffolder, AAjaltouni, ZAlbrecht, JAlessio, FAlexander, MAli, SAlkhazov, GCartelle, PJr, AAmato, SAmhis, YAnderlini, LAnderson, JAndreassen, RAppleby, RGutierrez, OArchilli, FArtamonov, AA measurement of the cross-section for pp->Z->e+e- is presented using data at sqrt{s}=7TeV corresponding to an integrated luminosity of 0.94 fb^{-1}. The process is measured within the kinematic acceptance pT>20GeV/c and 2<\eta<4.5 for the daughter electrons and dielectron invariant mass in the range 60--120GeV/c^2. The cross-section is determined to be \sigma(pp->Z->e+e-)=76.0+-0.8+-2.0+-2.6pb where the first uncertainty is statistical, the second is systematic and the third is the uncertainty in the luminosity. The measurement is performed as a function of Z rapidity and as a function of an angular variable which is closely related to the Z transverse momentum. The results are compared with previous LHCb measurements and with theoretical predictions from QCD.
spellingShingle collaboration, L
Aaij, R
Beteta, C
Adametz, A
Adeva, B
Adinolfi, M
Adrover, C
Affolder, A
Ajaltouni, Z
Albrecht, J
Alessio, F
Alexander, M
Ali, S
Alkhazov, G
Cartelle, P
Jr, A
Amato, S
Amhis, Y
Anderlini, L
Anderson, J
Andreassen, R
Appleby, R
Gutierrez, O
Archilli, F
Artamonov, A
Measurement of the cross-section for Z->e+e- production in pp collisions at sqrt{s}=7TeV
title Measurement of the cross-section for Z->e+e- production in pp collisions at sqrt{s}=7TeV
title_full Measurement of the cross-section for Z->e+e- production in pp collisions at sqrt{s}=7TeV
title_fullStr Measurement of the cross-section for Z->e+e- production in pp collisions at sqrt{s}=7TeV
title_full_unstemmed Measurement of the cross-section for Z->e+e- production in pp collisions at sqrt{s}=7TeV
title_short Measurement of the cross-section for Z->e+e- production in pp collisions at sqrt{s}=7TeV
title_sort measurement of the cross section for z gt e e production in pp collisions at sqrt s 7tev
work_keys_str_mv AT collaborationl measurementofthecrosssectionforzgteeproductioninppcollisionsatsqrts7tev
AT aaijr measurementofthecrosssectionforzgteeproductioninppcollisionsatsqrts7tev
AT betetac measurementofthecrosssectionforzgteeproductioninppcollisionsatsqrts7tev
AT adametza measurementofthecrosssectionforzgteeproductioninppcollisionsatsqrts7tev
AT adevab measurementofthecrosssectionforzgteeproductioninppcollisionsatsqrts7tev
AT adinolfim measurementofthecrosssectionforzgteeproductioninppcollisionsatsqrts7tev
AT adroverc measurementofthecrosssectionforzgteeproductioninppcollisionsatsqrts7tev
AT affoldera measurementofthecrosssectionforzgteeproductioninppcollisionsatsqrts7tev
AT ajaltouniz measurementofthecrosssectionforzgteeproductioninppcollisionsatsqrts7tev
AT albrechtj measurementofthecrosssectionforzgteeproductioninppcollisionsatsqrts7tev
AT alessiof measurementofthecrosssectionforzgteeproductioninppcollisionsatsqrts7tev
AT alexanderm measurementofthecrosssectionforzgteeproductioninppcollisionsatsqrts7tev
AT alis measurementofthecrosssectionforzgteeproductioninppcollisionsatsqrts7tev
AT alkhazovg measurementofthecrosssectionforzgteeproductioninppcollisionsatsqrts7tev
AT cartellep measurementofthecrosssectionforzgteeproductioninppcollisionsatsqrts7tev
AT jra measurementofthecrosssectionforzgteeproductioninppcollisionsatsqrts7tev
AT amatos measurementofthecrosssectionforzgteeproductioninppcollisionsatsqrts7tev
AT amhisy measurementofthecrosssectionforzgteeproductioninppcollisionsatsqrts7tev
AT anderlinil measurementofthecrosssectionforzgteeproductioninppcollisionsatsqrts7tev
AT andersonj measurementofthecrosssectionforzgteeproductioninppcollisionsatsqrts7tev
AT andreassenr measurementofthecrosssectionforzgteeproductioninppcollisionsatsqrts7tev
AT applebyr measurementofthecrosssectionforzgteeproductioninppcollisionsatsqrts7tev
AT gutierrezo measurementofthecrosssectionforzgteeproductioninppcollisionsatsqrts7tev
AT archillif measurementofthecrosssectionforzgteeproductioninppcollisionsatsqrts7tev
AT artamonova measurementofthecrosssectionforzgteeproductioninppcollisionsatsqrts7tev