Search for New Bottomlike Quark Pair Decays QQ[over-bar] -->(tW[superscript ∓])(t[over-bar] W[superscript ±]) in Same-Charge Dilepton Events
We report the most restrictive direct limits on masses of fourth-generation down-type quarks b′, and quarklike composite fermions (B or T5/3), decaying promptly to tW∓. We search for a significant excess of events with two same-charge leptons (e, mu), several hadronic jets, and missing transverse en...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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American Physical Society
2010
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| Online Access: | http://hdl.handle.net/1721.1/58839 https://orcid.org/0000-0002-6047-4211 |
| _version_ | 1826207017367240704 |
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| author | Gomez-Ceballos, Guillelmo Goncharov, Maxim Paus, Christoph M. E. Bauer, Gerry P Makhoul, Khaldoun |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Gomez-Ceballos, Guillelmo Goncharov, Maxim Paus, Christoph M. E. Bauer, Gerry P Makhoul, Khaldoun |
| author_sort | Gomez-Ceballos, Guillelmo |
| collection | MIT |
| description | We report the most restrictive direct limits on masses of fourth-generation down-type quarks b′, and quarklike composite fermions (B or T5/3), decaying promptly to tW∓. We search for a significant excess of events with two same-charge leptons (e, mu), several hadronic jets, and missing transverse energy. An analysis of data from pp̅ collisions with an integrated luminosity of 2.7 fb[superscript -1] collected with the CDF II detector at Fermilab yields no evidence for such a signal, setting mass limits mb′, mB>338 GeV/c[superscript 2] and mT5/3>365 GeV/c[superscript 2] at 95% confidence level. |
| first_indexed | 2024-09-23T13:42:31Z |
| format | Article |
| id | mit-1721.1/58839 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T13:42:31Z |
| publishDate | 2010 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/588392023-02-26T08:22:55Z Search for New Bottomlike Quark Pair Decays QQ[over-bar] -->(tW[superscript ∓])(t[over-bar] W[superscript ±]) in Same-Charge Dilepton Events Search for New Bottomlike Quark Pair Decays QQ̅ →(tW∓)(t̅ W±) in Same-Charge Dilepton Events Gomez-Ceballos, Guillelmo Goncharov, Maxim Paus, Christoph M. E. Bauer, Gerry P Makhoul, Khaldoun Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Paus, Christoph M. E. Bauer, Gerry P. Gomez-Ceballos, Guillelmo Goncharov, Maxim Makhoul, K. Paus, Christoph M. E. We report the most restrictive direct limits on masses of fourth-generation down-type quarks b′, and quarklike composite fermions (B or T5/3), decaying promptly to tW∓. We search for a significant excess of events with two same-charge leptons (e, mu), several hadronic jets, and missing transverse energy. An analysis of data from pp̅ collisions with an integrated luminosity of 2.7 fb[superscript -1] collected with the CDF II detector at Fermilab yields no evidence for such a signal, setting mass limits mb′, mB>338 GeV/c[superscript 2] and mT5/3>365 GeV/c[superscript 2] at 95% confidence level. United States. Dept. of Energy National Science Foundation (U.S.) Istituto Nazionale di Fisica Nucleare of Italy Ministry of Education, Culture, Sports, Science and Technology of Japan Natural Sciences and Engineering Research Council of Canada National Science Council of Taiwan Swiss National Science Foundation Alfred P. Sloan Foundation Bundesministerium für Bildung und Forschung, Germany World Class University Program (Korea) National Research Foundation of Korea Science and Technology Facilities Council, United Kingdom Institut National de Physique Nucleaire et Physique des Particules/CNRS Russian Foundation for Basic Research Ministerio de Ciencia e Innovación, Spain Programa Consolider-Ingenio 2010, Spain Slovak R&D Agency Academy of Finland 2010-10-01T20:05:20Z 2010-10-01T20:05:20Z 2010-03 2009-12 Article http://purl.org/eprint/type/JournalArticle 0031-9007 http://hdl.handle.net/1721.1/58839 CDF Collaboration et al. “Search for New Bottomlike Quark Pair Decays QQ[over -bar]-->(tW[superscript ±])(t[over -bar]Wsuperscript ±]) in Same-Charge Dilepton Events.” Physical Review Letters 104.9 (2010): 091801. © 2010 The American Physical Society. https://orcid.org/0000-0002-6047-4211 en_US http://dx.doi.org/10.1103/PhysRevLett.104.091801 Physical 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 Goncharov, Maxim Paus, Christoph M. E. Bauer, Gerry P Makhoul, Khaldoun Search for New Bottomlike Quark Pair Decays QQ[over-bar] -->(tW[superscript ∓])(t[over-bar] W[superscript ±]) in Same-Charge Dilepton Events |
| title | Search for New Bottomlike Quark Pair Decays QQ[over-bar] -->(tW[superscript ∓])(t[over-bar] W[superscript ±]) in Same-Charge Dilepton Events |
| title_full | Search for New Bottomlike Quark Pair Decays QQ[over-bar] -->(tW[superscript ∓])(t[over-bar] W[superscript ±]) in Same-Charge Dilepton Events |
| title_fullStr | Search for New Bottomlike Quark Pair Decays QQ[over-bar] -->(tW[superscript ∓])(t[over-bar] W[superscript ±]) in Same-Charge Dilepton Events |
| title_full_unstemmed | Search for New Bottomlike Quark Pair Decays QQ[over-bar] -->(tW[superscript ∓])(t[over-bar] W[superscript ±]) in Same-Charge Dilepton Events |
| title_short | Search for New Bottomlike Quark Pair Decays QQ[over-bar] -->(tW[superscript ∓])(t[over-bar] W[superscript ±]) in Same-Charge Dilepton Events |
| title_sort | search for new bottomlike quark pair decays qq over bar tw superscript ∓ t over bar w superscript in same charge dilepton events |
| url | http://hdl.handle.net/1721.1/58839 https://orcid.org/0000-0002-6047-4211 |
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