Improved determination of the sample composition of dimuon events produced in p(p)over-bar collisions at root s=1.96 TeV
We use a new method to estimate with 5% accuracy the contribution of pion and kaon in-flight-decays to the dimuon data set acquired with the CDF detector. Based on this improved estimate, we show that the total number and the properties of the collected dimuon events are not yet accounted for by ord...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
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2011
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| _version_ | 1797055373142654976 |
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| author | Aaltonen, T AlvarezGonzalez, B Amerio, S Anastassov, A Annovi, A Antos, J Apollinari, G Apresyan, A Arisawa, T Artikov, A Asaadi, J Ashmanskas, W Auerbach, B Aurisano, A Azfar, F Badgett, W Barbaro-Galtieri, A Barnes, V Barnett, B Barria, P Bartos, P Bauce, M Bedeschi, F Beecher, D Behari, S |
| author_facet | Aaltonen, T AlvarezGonzalez, B Amerio, S Anastassov, A Annovi, A Antos, J Apollinari, G Apresyan, A Arisawa, T Artikov, A Asaadi, J Ashmanskas, W Auerbach, B Aurisano, A Azfar, F Badgett, W Barbaro-Galtieri, A Barnes, V Barnett, B Barria, P Bartos, P Bauce, M Bedeschi, F Beecher, D Behari, S |
| author_sort | Aaltonen, T |
| collection | OXFORD |
| description | We use a new method to estimate with 5% accuracy the contribution of pion and kaon in-flight-decays to the dimuon data set acquired with the CDF detector. Based on this improved estimate, we show that the total number and the properties of the collected dimuon events are not yet accounted for by ordinary sources of dimuons which also include the contributions, as measured in the data, of heavy flavor, Υ{hooked}, and Drell-Yan production in addition to muons mimicked by hadronic punchthrough. The number of unaccounted events corresponds to (12.8±3.2)% of the bb̄ production. We find that (23±6)% of the unaccounted events contain additional muon candidates. For comparison, this fraction is (6.9±0.4)% for events due to bb̄ production. © 2011 The Author(s). |
| first_indexed | 2024-03-06T19:09:47Z |
| format | Journal article |
| id | oxford-uuid:16613664-abbb-4788-819b-44b6fccb19bd |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T19:09:47Z |
| publishDate | 2011 |
| record_format | dspace |
| spelling | oxford-uuid:16613664-abbb-4788-819b-44b6fccb19bd2022-03-26T10:31:02ZImproved determination of the sample composition of dimuon events produced in p(p)over-bar collisions at root s=1.96 TeVJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:16613664-abbb-4788-819b-44b6fccb19bdEnglishSymplectic Elements at Oxford2011Aaltonen, TAlvarezGonzalez, BAmerio, SAnastassov, AAnnovi, AAntos, JApollinari, GApresyan, AArisawa, TArtikov, AAsaadi, JAshmanskas, WAuerbach, BAurisano, AAzfar, FBadgett, WBarbaro-Galtieri, ABarnes, VBarnett, BBarria, PBartos, PBauce, MBedeschi, FBeecher, DBehari, SWe use a new method to estimate with 5% accuracy the contribution of pion and kaon in-flight-decays to the dimuon data set acquired with the CDF detector. Based on this improved estimate, we show that the total number and the properties of the collected dimuon events are not yet accounted for by ordinary sources of dimuons which also include the contributions, as measured in the data, of heavy flavor, Υ{hooked}, and Drell-Yan production in addition to muons mimicked by hadronic punchthrough. The number of unaccounted events corresponds to (12.8±3.2)% of the bb̄ production. We find that (23±6)% of the unaccounted events contain additional muon candidates. For comparison, this fraction is (6.9±0.4)% for events due to bb̄ production. © 2011 The Author(s). |
| spellingShingle | Aaltonen, T AlvarezGonzalez, B Amerio, S Anastassov, A Annovi, A Antos, J Apollinari, G Apresyan, A Arisawa, T Artikov, A Asaadi, J Ashmanskas, W Auerbach, B Aurisano, A Azfar, F Badgett, W Barbaro-Galtieri, A Barnes, V Barnett, B Barria, P Bartos, P Bauce, M Bedeschi, F Beecher, D Behari, S Improved determination of the sample composition of dimuon events produced in p(p)over-bar collisions at root s=1.96 TeV |
| title | Improved determination of the sample composition of dimuon events produced in p(p)over-bar collisions at root s=1.96 TeV |
| title_full | Improved determination of the sample composition of dimuon events produced in p(p)over-bar collisions at root s=1.96 TeV |
| title_fullStr | Improved determination of the sample composition of dimuon events produced in p(p)over-bar collisions at root s=1.96 TeV |
| title_full_unstemmed | Improved determination of the sample composition of dimuon events produced in p(p)over-bar collisions at root s=1.96 TeV |
| title_short | Improved determination of the sample composition of dimuon events produced in p(p)over-bar collisions at root s=1.96 TeV |
| title_sort | improved determination of the sample composition of dimuon events produced in p p over bar collisions at root s 1 96 tev |
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