Search for new heavy particles decaying to ZZ→llll, lljj in pp̄ collisions at s=1.96TeV
We report on a search for anomalous production of Z boson pairs through a massive resonance decay in data corresponding to 2.5-2.9fb-1 of integrated luminosity in pp̄ collisions at √s=1.96TeV using the CDF II detector at the Fermilab Tevatron. This analysis, with more data and channels where the Z b...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2011
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| _version_ | 1797056663804444672 |
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| author | Aaltonen, T Álvarez González, B Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Apollinari, G Appel, J Apresyan, A Arisawa, T Artikov, A Asaadi, J Ashmanskas, W Auerbach, B Aurisano, A Azfar, F Badgett, W Barbaro-Galtieri, A Barnes, V Barnett, B Barria, P Bartos, P Bauce, M Bauer, G |
| author_facet | Aaltonen, T Álvarez González, B Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Apollinari, G Appel, J Apresyan, A Arisawa, T Artikov, A Asaadi, J Ashmanskas, W Auerbach, B Aurisano, A Azfar, F Badgett, W Barbaro-Galtieri, A Barnes, V Barnett, B Barria, P Bartos, P Bauce, M Bauer, G |
| author_sort | Aaltonen, T |
| collection | OXFORD |
| description | We report on a search for anomalous production of Z boson pairs through a massive resonance decay in data corresponding to 2.5-2.9fb-1 of integrated luminosity in pp̄ collisions at √s=1.96TeV using the CDF II detector at the Fermilab Tevatron. This analysis, with more data and channels where the Z bosons decay to muons or jets, supersedes the 1.1fb-1 four-electron channel result previously published by CDF. In order to maintain high efficiency for muons, we use a new forward tracking algorithm and muon identification requirements optimized for these high signal-to-background channels. Predicting the dominant backgrounds in each channel entirely from sideband data samples, we observe four-body invariant mass spectra above 300GeV/c2 that are consistent with background. We set limits using the acceptance for a massive graviton resonance that are 7-20 times stronger than the previously published direct limits on resonant ZZ diboson production. © 2011 American Physical Society. |
| first_indexed | 2024-03-06T19:25:47Z |
| format | Journal article |
| id | oxford-uuid:1ba6b22f-3a79-4393-b9eb-553a9e4e24fe |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T19:25:47Z |
| publishDate | 2011 |
| record_format | dspace |
| spelling | oxford-uuid:1ba6b22f-3a79-4393-b9eb-553a9e4e24fe2022-03-26T11:01:36ZSearch for new heavy particles decaying to ZZ→llll, lljj in pp̄ collisions at s=1.96TeVJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:1ba6b22f-3a79-4393-b9eb-553a9e4e24feEnglishSymplectic Elements at Oxford2011Aaltonen, TÁlvarez González, BAmerio, SAmidei, DAnastassov, AAnnovi, AAntos, JApollinari, GAppel, JApresyan, AArisawa, TArtikov, AAsaadi, JAshmanskas, WAuerbach, BAurisano, AAzfar, FBadgett, WBarbaro-Galtieri, ABarnes, VBarnett, BBarria, PBartos, PBauce, MBauer, GWe report on a search for anomalous production of Z boson pairs through a massive resonance decay in data corresponding to 2.5-2.9fb-1 of integrated luminosity in pp̄ collisions at √s=1.96TeV using the CDF II detector at the Fermilab Tevatron. This analysis, with more data and channels where the Z bosons decay to muons or jets, supersedes the 1.1fb-1 four-electron channel result previously published by CDF. In order to maintain high efficiency for muons, we use a new forward tracking algorithm and muon identification requirements optimized for these high signal-to-background channels. Predicting the dominant backgrounds in each channel entirely from sideband data samples, we observe four-body invariant mass spectra above 300GeV/c2 that are consistent with background. We set limits using the acceptance for a massive graviton resonance that are 7-20 times stronger than the previously published direct limits on resonant ZZ diboson production. © 2011 American Physical Society. |
| spellingShingle | Aaltonen, T Álvarez González, B Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Apollinari, G Appel, J Apresyan, A Arisawa, T Artikov, A Asaadi, J Ashmanskas, W Auerbach, B Aurisano, A Azfar, F Badgett, W Barbaro-Galtieri, A Barnes, V Barnett, B Barria, P Bartos, P Bauce, M Bauer, G Search for new heavy particles decaying to ZZ→llll, lljj in pp̄ collisions at s=1.96TeV |
| title | Search for new heavy particles decaying to ZZ→llll, lljj in pp̄ collisions at s=1.96TeV |
| title_full | Search for new heavy particles decaying to ZZ→llll, lljj in pp̄ collisions at s=1.96TeV |
| title_fullStr | Search for new heavy particles decaying to ZZ→llll, lljj in pp̄ collisions at s=1.96TeV |
| title_full_unstemmed | Search for new heavy particles decaying to ZZ→llll, lljj in pp̄ collisions at s=1.96TeV |
| title_short | Search for new heavy particles decaying to ZZ→llll, lljj in pp̄ collisions at s=1.96TeV |
| title_sort | search for new heavy particles decaying to zz llll lljj in pp collisions at s 1 96tev |
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