Search for Exclusive Z-Boson Production and Observation of High-Mass pp-bar-->p gamma gamma p-bar-->pl+l-p-bar Events in pp-bar Collisions at s=1.96 TeV
This Letter presents a search for exclusive Z boson production in proton-antiproton collisions at √s=1.96 TeV, using the CDF II detector. No exclusive Z→l+l- candidates are observed and the first upper limit on the exclusive Z cross section in hadron collisions is found to be σexcl(Z)<0.96 pb a...
| Main Authors: | , , , , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
American Physical Society
2010
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| Online Access: | http://hdl.handle.net/1721.1/51354 https://orcid.org/0000-0002-6047-4211 |
| _version_ | 1811091682990489600 |
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| author | Gomez-Ceballos, Guillelmo Henderson, C. Choudalakis, Georgios Knuteson, Bruce O. Hahn, Kristian Allan Goncharov, Maxim Paus, Christoph M. E. Xie, Si Makhoul, Khaldoun Bauer, Gerry P |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Gomez-Ceballos, Guillelmo Henderson, C. Choudalakis, Georgios Knuteson, Bruce O. Hahn, Kristian Allan Goncharov, Maxim Paus, Christoph M. E. Xie, Si Makhoul, Khaldoun Bauer, Gerry P |
| author_sort | Gomez-Ceballos, Guillelmo |
| collection | MIT |
| description | This Letter presents a search for exclusive Z boson production in proton-antiproton collisions at √s=1.96 TeV, using the CDF II detector. No exclusive Z→l+l- candidates are observed and the first upper limit on the exclusive Z cross section in hadron collisions is found to be σexcl(Z)<0.96 pb at 95% confidence level. In addition, eight candidate exclusive dilepton events from the process pp̅ →pγγp̅ →pl+l-p̅ are observed, and a measurement of the cross section for Mll>40 GeV/c[superscript 2] and |ηl|<4 is found to be σ=0.24[subscript -0.10] [superscript +0.13] pb, which is consistent with the standard model prediction. |
| first_indexed | 2024-09-23T15:06:17Z |
| format | Article |
| id | mit-1721.1/51354 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T15:06:17Z |
| publishDate | 2010 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/513542023-02-26T04:19:13Z Search for Exclusive Z-Boson Production and Observation of High-Mass pp-bar-->p gamma gamma p-bar-->pl+l-p-bar Events in pp-bar Collisions at s=1.96 TeV Gomez-Ceballos, Guillelmo Henderson, C. Choudalakis, Georgios Knuteson, Bruce O. Hahn, Kristian Allan Goncharov, Maxim Paus, Christoph M. E. Xie, Si Makhoul, Khaldoun Bauer, Gerry P Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Bauer, Gerry P. Gomez-Ceballos, Guillelmo Hahn, Kristian Allan Goncharov, Maxim Paus, Christoph M. E. Xie, Si Knuteson, Bruce O. Makhoul, K. Bauer, Gerry P. Choudalakis, Georgios Henderson, C. This Letter presents a search for exclusive Z boson production in proton-antiproton collisions at √s=1.96 TeV, using the CDF II detector. No exclusive Z→l+l- candidates are observed and the first upper limit on the exclusive Z cross section in hadron collisions is found to be σexcl(Z)<0.96 pb at 95% confidence level. In addition, eight candidate exclusive dilepton events from the process pp̅ →pγγp̅ →pl+l-p̅ are observed, and a measurement of the cross section for Mll>40 GeV/c[superscript 2] and |ηl|<4 is found to be σ=0.24[subscript -0.10] [superscript +0.13] pb, which is consistent with the standard model prediction. Korean Science and Engineering Foundation Ministerio de Ciencia e Innovacion Academy of Finland Slovak R&D Agency Department of Energy the Institut National de Physique Nucleaire et Physique des Particules/CNRS Programa Consolider-Ingenio 2010, Spain Russian Foundation for Basic Research National Science Council of the Republic of China Bundesministerium fu¨ r Bildung und Forschung, Germany Swiss National Science Foundation Ministry of Education, Culture, Sports, Science and Technology of Japan Italian Istituto Nazionale di Fisica Nucleare National Science Foundation Natural Sciences and Engineering Research Council of Canada A. P. Sloan Foundation Korean Research Foundation Science and Technology Facilities Council and the Royal Society, U.K 2010-02-03T15:21:02Z 2010-02-03T15:21:02Z 2009-06 2009-02 Article http://purl.org/eprint/type/JournalArticle 0031-9007 http://hdl.handle.net/1721.1/51354 CDF Collaboration et al. “Search for Exclusive Z-Boson Production and Observation of High-Mass pp-bar-->p gamma gamma p-bar-->pl+l-p-bar Events in pp-bar Collisions at s=1.96 TeV.” Physical Review Letters 102.22 (2009): 222002. (C) 2010 The American Physical Society. https://orcid.org/0000-0002-6047-4211 en_US http://dx.doi.org/10.1103/PhysRevLett.102.222002 Phyisical Review Letters 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 | Gomez-Ceballos, Guillelmo Henderson, C. Choudalakis, Georgios Knuteson, Bruce O. Hahn, Kristian Allan Goncharov, Maxim Paus, Christoph M. E. Xie, Si Makhoul, Khaldoun Bauer, Gerry P Search for Exclusive Z-Boson Production and Observation of High-Mass pp-bar-->p gamma gamma p-bar-->pl+l-p-bar Events in pp-bar Collisions at s=1.96 TeV |
| title | Search for Exclusive Z-Boson
Production and Observation of High-Mass pp-bar-->p gamma
gamma p-bar-->pl+l-p-bar Events in pp-bar Collisions at s=1.96
TeV |
| title_full | Search for Exclusive Z-Boson
Production and Observation of High-Mass pp-bar-->p gamma
gamma p-bar-->pl+l-p-bar Events in pp-bar Collisions at s=1.96
TeV |
| title_fullStr | Search for Exclusive Z-Boson
Production and Observation of High-Mass pp-bar-->p gamma
gamma p-bar-->pl+l-p-bar Events in pp-bar Collisions at s=1.96
TeV |
| title_full_unstemmed | Search for Exclusive Z-Boson
Production and Observation of High-Mass pp-bar-->p gamma
gamma p-bar-->pl+l-p-bar Events in pp-bar Collisions at s=1.96
TeV |
| title_short | Search for Exclusive Z-Boson
Production and Observation of High-Mass pp-bar-->p gamma
gamma p-bar-->pl+l-p-bar Events in pp-bar Collisions at s=1.96
TeV |
| title_sort | search for exclusive z boson production and observation of high mass pp bar p gamma gamma p bar pl l p bar events in pp bar collisions at s 1 96 tev |
| url | http://hdl.handle.net/1721.1/51354 https://orcid.org/0000-0002-6047-4211 |
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