Search for WW and WZ production in lepton plus jets final state at CDF
We present a search for WW and WZ production in final states that contain a charged lepton (electron or muon) and at least two jets, produced in √s=1.96 TeV pp̅ collisions at the Fermilab Tevatron, using data corresponding to 1.2 fb[superscript -1] of integrated luminosity collected with the CDF...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2010
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| Online Access: | http://hdl.handle.net/1721.1/51840 https://orcid.org/0000-0002-6047-4211 |
| _version_ | 1811098204105605120 |
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| author | Xie, Si Knuteson, Bruce O. Henderson, C. Hahn, Kristian Allan Gomez-Ceballos, Guillelmo Choudalakis, Georgios Paus, Christoph M. E. Makhoul, Khaldoun Goncharov, Maxim Bauer, Gerry P |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Xie, Si Knuteson, Bruce O. Henderson, C. Hahn, Kristian Allan Gomez-Ceballos, Guillelmo Choudalakis, Georgios Paus, Christoph M. E. Makhoul, Khaldoun Goncharov, Maxim Bauer, Gerry P |
| author_sort | Xie, Si |
| collection | MIT |
| description | We present a search for WW and WZ production in final states that contain a charged lepton (electron or muon) and at least two jets, produced in √s=1.96 TeV pp̅ collisions at the Fermilab Tevatron, using data corresponding to 1.2 fb[superscript -1] of integrated luminosity collected with the CDF II detector. Diboson production in this decay channel has yet to be observed at hadron colliders due to the large single W plus jets background. An artificial neural network has been developed to increase signal sensitivity, as compared with an event selection based on conventional cuts. We set a 95% confidence level upper limit of σ_(WW)×BR(W→ℓνℓ,W→jets)+σ[subscript WZ]×BR(W→ℓν_ℓ,Z→jets)<2.88 pb, which is consistent with the standard model next-to-leading-order cross section calculation for this decay channel of 2.09±0.12 pb. |
| first_indexed | 2024-09-23T17:11:32Z |
| format | Article |
| id | mit-1721.1/51840 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T17:11:32Z |
| publishDate | 2010 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/518402023-02-26T04:21:51Z Search for WW and WZ production in lepton plus jets final state at CDF Xie, Si Knuteson, Bruce O. Henderson, C. Hahn, Kristian Allan Gomez-Ceballos, Guillelmo Choudalakis, Georgios Paus, Christoph M. E. Makhoul, Khaldoun Goncharov, Maxim Bauer, Gerry P Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Paus, Christoph M. E. Xie, Si Makhoul, K. Knuteson, Bruce O. Henderson, C. Hahn, Kristian Allan Goncharov, M. Gomez-Ceballos, Guillelmo Choudalakis, Georgios Bauer, Gerry P. Paus, Christoph M. E. We present a search for WW and WZ production in final states that contain a charged lepton (electron or muon) and at least two jets, produced in √s=1.96 TeV pp̅ collisions at the Fermilab Tevatron, using data corresponding to 1.2 fb[superscript -1] of integrated luminosity collected with the CDF II detector. Diboson production in this decay channel has yet to be observed at hadron colliders due to the large single W plus jets background. An artificial neural network has been developed to increase signal sensitivity, as compared with an event selection based on conventional cuts. We set a 95% confidence level upper limit of σ_(WW)×BR(W→ℓνℓ,W→jets)+σ[subscript WZ]×BR(W→ℓν_ℓ,Z→jets)<2.88 pb, which is consistent with the standard model next-to-leading-order cross section calculation for this decay channel of 2.09±0.12 pb. Academy of Finland Slovak R&D Agency Programa Consolider-Ingenio 2010, Spain Ministerio de Ciencia e Innovación, Spain Russian Foundation for Basic Research Institut National de Physique Nucleaire et Physique des Particules/CNRS Royal Society, United Kingdom Science and Technology Facilities Council, United Kingdom Korean Research Foundation Korean Science and Engineering Foundation Bundesministerium für Bildung und Forschung, Germany Alfred P. Sloan Foundation Swiss National Science Foundation National Science Council of the Republic of China Natural Sciences and Engineering Research Council of Canada Ministry of Education, Culture, Sports, Science and Technology of Japan Italian Istituto Nazionale di Fisica Nucleare National Science Foundation United States Department of Energy 2010-02-26T20:42:41Z 2010-02-26T20:42:41Z 2009-06 2009-03 Article http://purl.org/eprint/type/JournalArticle 1550-2368 1550-7998 http://hdl.handle.net/1721.1/51840 CDF Collaboration et al. “Search for WW and WZ production in lepton plus jets final state at CDF.” Physical Review D 79.11 (2009): 112011. © 2009 The American Physical Society https://orcid.org/0000-0002-6047-4211 en_US http://dx.doi.org/10.1103/PhysRevD.79.112011 Physical Review D Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS |
| spellingShingle | Xie, Si Knuteson, Bruce O. Henderson, C. Hahn, Kristian Allan Gomez-Ceballos, Guillelmo Choudalakis, Georgios Paus, Christoph M. E. Makhoul, Khaldoun Goncharov, Maxim Bauer, Gerry P Search for WW and WZ production in lepton plus jets final state at CDF |
| title | Search for WW and WZ production in lepton plus jets final state at CDF |
| title_full | Search for WW and WZ production in lepton plus jets final state at CDF |
| title_fullStr | Search for WW and WZ production in lepton plus jets final state at CDF |
| title_full_unstemmed | Search for WW and WZ production in lepton plus jets final state at CDF |
| title_short | Search for WW and WZ production in lepton plus jets final state at CDF |
| title_sort | search for ww and wz production in lepton plus jets final state at cdf |
| url | http://hdl.handle.net/1721.1/51840 https://orcid.org/0000-0002-6047-4211 |
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