Studying the Underlying Event in Drell-Yan and High Transverse Momentum Jet Production at the Tevatron
We study the underlying event in proton-antiproton collisions by examining the behavior of charged particles (transverse momentum pT > 0.5 GeV/c, pseudorapidity |\eta| < 1) produced in association with large transverse momentum jets (~2.2 fb-1) or with Drell-Yan lepton-pairs (~2.7 fb-1...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| פורמט: | Journal article |
| שפה: | English |
| יצא לאור: |
2010
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| _version_ | 1826302129831149568 |
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| author | Collaboration, TCDF Aaltonen, T Adelman, J Gonzalez, B Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Apollinari, G Apresyan, A Arisawa, T Artikov, A Asaadi, J Ashmanskas, W Attal, A Aurisano, A Azfar, F Badgett, W Barbaro-Galtieri, A Barnes, V Barnett, B Barria, P Bartos, P Bauer, G |
| author_facet | Collaboration, TCDF Aaltonen, T Adelman, J Gonzalez, B Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Apollinari, G Apresyan, A Arisawa, T Artikov, A Asaadi, J Ashmanskas, W Attal, A Aurisano, A Azfar, F Badgett, W Barbaro-Galtieri, A Barnes, V Barnett, B Barria, P Bartos, P Bauer, G |
| author_sort | Collaboration, TCDF |
| collection | OXFORD |
| description | We study the underlying event in proton-antiproton collisions by examining the behavior of charged particles (transverse momentum pT > 0.5 GeV/c, pseudorapidity |\eta| < 1) produced in association with large transverse momentum jets (~2.2 fb-1) or with Drell-Yan lepton-pairs (~2.7 fb-1) in the Z-boson mass region (70 < M(pair) < 110 GeV/c2) as measured by CDF at 1.96 TeV center-of-mass energy. We use the direction of the lepton-pair (in Drell-Yan production) or the leading jet (in high-pT jet production) in each event to define three regions of \eta-\phi space; toward, away, and transverse, where \phi is the azimuthal scattering angle. For Drell-Yan production (excluding the leptons) both the toward and transverse regions are very sensitive to the underlying event. In high-pT jet production the transverse region is very sensitive to the underlying event and is separated into a MAX and MIN transverse region, which helps separate the hard component (initial and final-state radiation) from the beam-beam remnant and multiple parton interaction components of the scattering. The data are corrected to the particle level to remove detector effects and are then compared with several QCD Monte-Carlo models. The goal of this analysis is to provide data that can be used to test and improve the QCD Monte-Carlo models of the underlying event that are used to simulate hadron-hadron collisions. |
| first_indexed | 2024-03-07T05:42:51Z |
| format | Journal article |
| id | oxford-uuid:e62ed872-3cd4-44d2-9f76-ff31be5e163d |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T05:42:51Z |
| publishDate | 2010 |
| record_format | dspace |
| spelling | oxford-uuid:e62ed872-3cd4-44d2-9f76-ff31be5e163d2022-03-27T10:29:28ZStudying the Underlying Event in Drell-Yan and High Transverse Momentum Jet Production at the TevatronJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:e62ed872-3cd4-44d2-9f76-ff31be5e163dEnglishSymplectic Elements at Oxford2010Collaboration, TCDFAaltonen, TAdelman, JGonzalez, BAmerio, SAmidei, DAnastassov, AAnnovi, AAntos, JApollinari, GApresyan, AArisawa, TArtikov, AAsaadi, JAshmanskas, WAttal, AAurisano, AAzfar, FBadgett, WBarbaro-Galtieri, ABarnes, VBarnett, BBarria, PBartos, PBauer, GWe study the underlying event in proton-antiproton collisions by examining the behavior of charged particles (transverse momentum pT > 0.5 GeV/c, pseudorapidity |\eta| < 1) produced in association with large transverse momentum jets (~2.2 fb-1) or with Drell-Yan lepton-pairs (~2.7 fb-1) in the Z-boson mass region (70 < M(pair) < 110 GeV/c2) as measured by CDF at 1.96 TeV center-of-mass energy. We use the direction of the lepton-pair (in Drell-Yan production) or the leading jet (in high-pT jet production) in each event to define three regions of \eta-\phi space; toward, away, and transverse, where \phi is the azimuthal scattering angle. For Drell-Yan production (excluding the leptons) both the toward and transverse regions are very sensitive to the underlying event. In high-pT jet production the transverse region is very sensitive to the underlying event and is separated into a MAX and MIN transverse region, which helps separate the hard component (initial and final-state radiation) from the beam-beam remnant and multiple parton interaction components of the scattering. The data are corrected to the particle level to remove detector effects and are then compared with several QCD Monte-Carlo models. The goal of this analysis is to provide data that can be used to test and improve the QCD Monte-Carlo models of the underlying event that are used to simulate hadron-hadron collisions. |
| spellingShingle | Collaboration, TCDF Aaltonen, T Adelman, J Gonzalez, B Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Apollinari, G Apresyan, A Arisawa, T Artikov, A Asaadi, J Ashmanskas, W Attal, A Aurisano, A Azfar, F Badgett, W Barbaro-Galtieri, A Barnes, V Barnett, B Barria, P Bartos, P Bauer, G Studying the Underlying Event in Drell-Yan and High Transverse Momentum Jet Production at the Tevatron |
| title | Studying the Underlying Event in Drell-Yan and High Transverse Momentum
Jet Production at the Tevatron |
| title_full | Studying the Underlying Event in Drell-Yan and High Transverse Momentum
Jet Production at the Tevatron |
| title_fullStr | Studying the Underlying Event in Drell-Yan and High Transverse Momentum
Jet Production at the Tevatron |
| title_full_unstemmed | Studying the Underlying Event in Drell-Yan and High Transverse Momentum
Jet Production at the Tevatron |
| title_short | Studying the Underlying Event in Drell-Yan and High Transverse Momentum
Jet Production at the Tevatron |
| title_sort | studying the underlying event in drell yan and high transverse momentum jet production at the tevatron |
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