Search for new bottomlike quark pair decays QQ̄→(tW) (t̄W±) 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, μ), several hadronic jets, and missing transverse ener...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2010
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| _version_ | 1797105911674699776 |
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| author | Aaltonen, T Adelman, J González, B Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Apollinari, G Apresyan, A Arisawa, T Artikov, A Asaadi, J Ashmanskas, W Attal, A Aurisano, A Azfar, F Badgett, W Barbaro-Galtieri, A Barnes, V Barnett, B Barria, P Bartos, P Bauer, G Beauchemin, P |
| author_facet | Aaltonen, T Adelman, J González, B Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Apollinari, G Apresyan, A Arisawa, T Artikov, A Asaadi, J Ashmanskas, W Attal, A Aurisano, A Azfar, F Badgett, W Barbaro-Galtieri, A Barnes, V Barnett, B Barria, P Bartos, P Bauer, G Beauchemin, P |
| author_sort | Aaltonen, T |
| collection | OXFORD |
| 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, μ), several hadronic jets, and missing transverse energy. An analysis of data from pp̄ collisions with an integrated luminosity of 2.7fb-1 collected with the CDF II detector at Fermilab yields no evidence for such a signal, setting mass limits mb ′, mB>338GeV/c2 and mT5/3>365GeV/c2 at 95% confidence level. © 2010 The American Physical Society. |
| first_indexed | 2024-03-07T06:54:08Z |
| format | Journal article |
| id | oxford-uuid:fd8bef42-75e9-4909-8f97-344eaa1e7e61 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T06:54:08Z |
| publishDate | 2010 |
| record_format | dspace |
| spelling | oxford-uuid:fd8bef42-75e9-4909-8f97-344eaa1e7e612022-03-27T13:29:37ZSearch for new bottomlike quark pair decays QQ̄→(tW) (t̄W±) in same-charge dilepton eventsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:fd8bef42-75e9-4909-8f97-344eaa1e7e61EnglishSymplectic Elements at Oxford2010Aaltonen, TAdelman, JGonzález, BAmerio, SAmidei, DAnastassov, AAnnovi, AAntos, JApollinari, GApresyan, AArisawa, TArtikov, AAsaadi, JAshmanskas, WAttal, AAurisano, AAzfar, FBadgett, WBarbaro-Galtieri, ABarnes, VBarnett, BBarria, PBartos, PBauer, GBeauchemin, PWe 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, μ), several hadronic jets, and missing transverse energy. An analysis of data from pp̄ collisions with an integrated luminosity of 2.7fb-1 collected with the CDF II detector at Fermilab yields no evidence for such a signal, setting mass limits mb ′, mB>338GeV/c2 and mT5/3>365GeV/c2 at 95% confidence level. © 2010 The American Physical Society. |
| spellingShingle | Aaltonen, T Adelman, J González, B Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Apollinari, G Apresyan, A Arisawa, T Artikov, A Asaadi, J Ashmanskas, W Attal, A Aurisano, A Azfar, F Badgett, W Barbaro-Galtieri, A Barnes, V Barnett, B Barria, P Bartos, P Bauer, G Beauchemin, P Search for new bottomlike quark pair decays QQ̄→(tW) (t̄W±) in same-charge dilepton events |
| title | Search for new bottomlike quark pair decays QQ̄→(tW) (t̄W±) in same-charge dilepton events |
| title_full | Search for new bottomlike quark pair decays QQ̄→(tW) (t̄W±) in same-charge dilepton events |
| title_fullStr | Search for new bottomlike quark pair decays QQ̄→(tW) (t̄W±) in same-charge dilepton events |
| title_full_unstemmed | Search for new bottomlike quark pair decays QQ̄→(tW) (t̄W±) in same-charge dilepton events |
| title_short | Search for new bottomlike quark pair decays QQ̄→(tW) (t̄W±) in same-charge dilepton events |
| title_sort | search for new bottomlike quark pair decays qq tw tw in same charge dilepton events |
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