Measurement of the single-top-quark production cross section at CDF.
We report a measurement of the single-top-quark production cross section in 2.2 fb;{-1} of pp collision data collected by the Collider Detector at Fermilab at sqrt[s]=1.96 TeV. Candidate events are classified as signal-like by three parallel analyses which use likelihood, matrix element, and neural...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Formato: | Journal article |
| Idioma: | English |
| Publicado em: |
2008
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| _version_ | 1826299485836279808 |
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| author | Aaltonen, T Adelman, J Akimoto, T Albrow, MG Alvarez González, B Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Apollinari, G Apresyan, A Arisawa, T Artikov, A Ashmanskas, W Attal, A Aurisano, A Azfar, F Azzurri, P Badgett, W Barbaro-Galtieri, A Barnes, V Barnett, B Bartsch, V Bauer, G |
| author_facet | Aaltonen, T Adelman, J Akimoto, T Albrow, MG Alvarez González, B Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Apollinari, G Apresyan, A Arisawa, T Artikov, A Ashmanskas, W Attal, A Aurisano, A Azfar, F Azzurri, P Badgett, W Barbaro-Galtieri, A Barnes, V Barnett, B Bartsch, V Bauer, G |
| author_sort | Aaltonen, T |
| collection | OXFORD |
| description | We report a measurement of the single-top-quark production cross section in 2.2 fb;{-1} of pp collision data collected by the Collider Detector at Fermilab at sqrt[s]=1.96 TeV. Candidate events are classified as signal-like by three parallel analyses which use likelihood, matrix element, and neural network discriminants. These results are combined in order to improve the sensitivity. We observe a signal consistent with the standard model prediction, but inconsistent with the background-only model by 3.7 standard deviations with a median expected sensitivity of 4.9 standard deviations. We measure a cross section of 2.2(-0.6)(+0.7)(stat+syst) pb, extract the Cabibbo-Kobayashi-Maskawa matrix-element value |V(tb)|=0.88(-0.12)(+0.13)(stat+syst)+/-0.07(theory), and set the limit |V(tb)|>0.66 at the 95% C.L. |
| first_indexed | 2024-03-07T05:02:39Z |
| format | Journal article |
| id | oxford-uuid:d8d4b74b-7b39-4dab-9792-892c2235aa15 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T05:02:39Z |
| publishDate | 2008 |
| record_format | dspace |
| spelling | oxford-uuid:d8d4b74b-7b39-4dab-9792-892c2235aa152022-03-27T08:51:38ZMeasurement of the single-top-quark production cross section at CDF.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:d8d4b74b-7b39-4dab-9792-892c2235aa15EnglishSymplectic Elements at Oxford2008Aaltonen, TAdelman, JAkimoto, TAlbrow, MGAlvarez González, BAmerio, SAmidei, DAnastassov, AAnnovi, AAntos, JApollinari, GApresyan, AArisawa, TArtikov, AAshmanskas, WAttal, AAurisano, AAzfar, FAzzurri, PBadgett, WBarbaro-Galtieri, ABarnes, VBarnett, BBartsch, VBauer, GWe report a measurement of the single-top-quark production cross section in 2.2 fb;{-1} of pp collision data collected by the Collider Detector at Fermilab at sqrt[s]=1.96 TeV. Candidate events are classified as signal-like by three parallel analyses which use likelihood, matrix element, and neural network discriminants. These results are combined in order to improve the sensitivity. We observe a signal consistent with the standard model prediction, but inconsistent with the background-only model by 3.7 standard deviations with a median expected sensitivity of 4.9 standard deviations. We measure a cross section of 2.2(-0.6)(+0.7)(stat+syst) pb, extract the Cabibbo-Kobayashi-Maskawa matrix-element value |V(tb)|=0.88(-0.12)(+0.13)(stat+syst)+/-0.07(theory), and set the limit |V(tb)|>0.66 at the 95% C.L. |
| spellingShingle | Aaltonen, T Adelman, J Akimoto, T Albrow, MG Alvarez González, B Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Apollinari, G Apresyan, A Arisawa, T Artikov, A Ashmanskas, W Attal, A Aurisano, A Azfar, F Azzurri, P Badgett, W Barbaro-Galtieri, A Barnes, V Barnett, B Bartsch, V Bauer, G Measurement of the single-top-quark production cross section at CDF. |
| title | Measurement of the single-top-quark production cross section at CDF. |
| title_full | Measurement of the single-top-quark production cross section at CDF. |
| title_fullStr | Measurement of the single-top-quark production cross section at CDF. |
| title_full_unstemmed | Measurement of the single-top-quark production cross section at CDF. |
| title_short | Measurement of the single-top-quark production cross section at CDF. |
| title_sort | measurement of the single top quark production cross section at cdf |
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