Cross section and heavy quark composition of gamma+mu events produced in p(p)over-bar collisions
We present a measurement of the cross section and the first measurement of the heavy flavor content of associated direct photon + muon events produced in hadronic collisions. These measurements come from a sample of 1.8 TeV pp̄ collisions recorded with the Collider Detector at Fermilab. Quantum chro...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2002
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| _version_ | 1797071634817875968 |
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| author | Affolder, T Akimoto, H Akopian, A Albrow, MG Amaral, P Amidei, D Anikeev, K Antos, J Apollinari, G Arisawa, T Asakawa, T Ashmanskas, W Azfar, F Azzi-Bacchetta, P Bacchetta, N Bailey, M Bailey, S de Barbaro, P Barbaro-Galtieri, A Barnes, V Barnett, B Baroiant, S Barone, M Bauer, G Bedeschi, F |
| author_facet | Affolder, T Akimoto, H Akopian, A Albrow, MG Amaral, P Amidei, D Anikeev, K Antos, J Apollinari, G Arisawa, T Asakawa, T Ashmanskas, W Azfar, F Azzi-Bacchetta, P Bacchetta, N Bailey, M Bailey, S de Barbaro, P Barbaro-Galtieri, A Barnes, V Barnett, B Baroiant, S Barone, M Bauer, G Bedeschi, F |
| author_sort | Affolder, T |
| collection | OXFORD |
| description | We present a measurement of the cross section and the first measurement of the heavy flavor content of associated direct photon + muon events produced in hadronic collisions. These measurements come from a sample of 1.8 TeV pp̄ collisions recorded with the Collider Detector at Fermilab. Quantum chromodynamics (QCD) predicts that these events are primarily due to the Compton scattering process cg→cγ, with the final-state charm quark producing a muon. The cross section for events with a photon transverse momentum between 12 and 40 GeV/c is measured to be 46.8±6.3±7.5 pb, which is two standard deviations below the most recent theoretical calculation. A significant fraction of the events in the sample contain a final-state bottom quark. The ratio of charm to bottom production is measured to be 2.4±1.2, in good agreement with QCD models. © 2001 The American Physical Society. |
| first_indexed | 2024-03-06T22:56:12Z |
| format | Journal article |
| id | oxford-uuid:607839e0-0374-493e-b8b6-3216aaf54131 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T22:56:12Z |
| publishDate | 2002 |
| record_format | dspace |
| spelling | oxford-uuid:607839e0-0374-493e-b8b6-3216aaf541312022-03-26T17:53:39ZCross section and heavy quark composition of gamma+mu events produced in p(p)over-bar collisionsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:607839e0-0374-493e-b8b6-3216aaf54131EnglishSymplectic Elements at Oxford2002Affolder, TAkimoto, HAkopian, AAlbrow, MGAmaral, PAmidei, DAnikeev, KAntos, JApollinari, GArisawa, TAsakawa, TAshmanskas, WAzfar, FAzzi-Bacchetta, PBacchetta, NBailey, MBailey, Sde Barbaro, PBarbaro-Galtieri, ABarnes, VBarnett, BBaroiant, SBarone, MBauer, GBedeschi, FWe present a measurement of the cross section and the first measurement of the heavy flavor content of associated direct photon + muon events produced in hadronic collisions. These measurements come from a sample of 1.8 TeV pp̄ collisions recorded with the Collider Detector at Fermilab. Quantum chromodynamics (QCD) predicts that these events are primarily due to the Compton scattering process cg→cγ, with the final-state charm quark producing a muon. The cross section for events with a photon transverse momentum between 12 and 40 GeV/c is measured to be 46.8±6.3±7.5 pb, which is two standard deviations below the most recent theoretical calculation. A significant fraction of the events in the sample contain a final-state bottom quark. The ratio of charm to bottom production is measured to be 2.4±1.2, in good agreement with QCD models. © 2001 The American Physical Society. |
| spellingShingle | Affolder, T Akimoto, H Akopian, A Albrow, MG Amaral, P Amidei, D Anikeev, K Antos, J Apollinari, G Arisawa, T Asakawa, T Ashmanskas, W Azfar, F Azzi-Bacchetta, P Bacchetta, N Bailey, M Bailey, S de Barbaro, P Barbaro-Galtieri, A Barnes, V Barnett, B Baroiant, S Barone, M Bauer, G Bedeschi, F Cross section and heavy quark composition of gamma+mu events produced in p(p)over-bar collisions |
| title | Cross section and heavy quark composition of gamma+mu events produced in p(p)over-bar collisions |
| title_full | Cross section and heavy quark composition of gamma+mu events produced in p(p)over-bar collisions |
| title_fullStr | Cross section and heavy quark composition of gamma+mu events produced in p(p)over-bar collisions |
| title_full_unstemmed | Cross section and heavy quark composition of gamma+mu events produced in p(p)over-bar collisions |
| title_short | Cross section and heavy quark composition of gamma+mu events produced in p(p)over-bar collisions |
| title_sort | cross section and heavy quark composition of gamma mu events produced in p p over bar collisions |
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