Search for V+A current in top-quark decays in pp collisions at sqrts=1.96 TeV.
We report an upper limit on the fraction of V+A current, fV+A, in top-quark decays, using approximately 700 pb-1 of pp[over ] collisions at sqrts=1.96 TeV acquired by the upgraded Collider Detector at Fermilab. For the decay t-->Wb-->lnub (where l=e or micro), the invariant mass of the...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2007
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| _version_ | 1826297446290948096 |
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| author | Abulencia, A Adelman, J Affolder, T Akimoto, T Albrow, MG Ambrose, D Amerio, S Amidei, D Anastassov, A Anikeev, K Annovi, A Antos, J Aoki, M Apollinari, G Arguin, J Arisawa, T Artikov, A Ashmanskas, W Attal, A Azfar, F Azzi-Bacchetta, P Azzurri, P Bacchetta, N Badgett, W Barbaro-Galtieri, A |
| author_facet | Abulencia, A Adelman, J Affolder, T Akimoto, T Albrow, MG Ambrose, D Amerio, S Amidei, D Anastassov, A Anikeev, K Annovi, A Antos, J Aoki, M Apollinari, G Arguin, J Arisawa, T Artikov, A Ashmanskas, W Attal, A Azfar, F Azzi-Bacchetta, P Azzurri, P Bacchetta, N Badgett, W Barbaro-Galtieri, A |
| author_sort | Abulencia, A |
| collection | OXFORD |
| description | We report an upper limit on the fraction of V+A current, fV+A, in top-quark decays, using approximately 700 pb-1 of pp[over ] collisions at sqrts=1.96 TeV acquired by the upgraded Collider Detector at Fermilab. For the decay t-->Wb-->lnub (where l=e or micro), the invariant mass of the charged lepton and the bottom quark jet is sensitive to the polarization of the W boson. We determine fV+A=-0.06+/-0.25 given a top-quark mass of 175 GeV/c2. We set an upper limit on fV+A of 0.29 at the 95% confidence level, an improvement by a factor of 2 on the previous best direct limit. |
| first_indexed | 2024-03-07T04:31:44Z |
| format | Journal article |
| id | oxford-uuid:ce905b18-51f5-400d-8209-9a74a634c363 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T04:31:44Z |
| publishDate | 2007 |
| record_format | dspace |
| spelling | oxford-uuid:ce905b18-51f5-400d-8209-9a74a634c3632022-03-27T07:36:30ZSearch for V+A current in top-quark decays in pp collisions at sqrts=1.96 TeV.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:ce905b18-51f5-400d-8209-9a74a634c363EnglishSymplectic Elements at Oxford2007Abulencia, AAdelman, JAffolder, TAkimoto, TAlbrow, MGAmbrose, DAmerio, SAmidei, DAnastassov, AAnikeev, KAnnovi, AAntos, JAoki, MApollinari, GArguin, JArisawa, TArtikov, AAshmanskas, WAttal, AAzfar, FAzzi-Bacchetta, PAzzurri, PBacchetta, NBadgett, WBarbaro-Galtieri, AWe report an upper limit on the fraction of V+A current, fV+A, in top-quark decays, using approximately 700 pb-1 of pp[over ] collisions at sqrts=1.96 TeV acquired by the upgraded Collider Detector at Fermilab. For the decay t-->Wb-->lnub (where l=e or micro), the invariant mass of the charged lepton and the bottom quark jet is sensitive to the polarization of the W boson. We determine fV+A=-0.06+/-0.25 given a top-quark mass of 175 GeV/c2. We set an upper limit on fV+A of 0.29 at the 95% confidence level, an improvement by a factor of 2 on the previous best direct limit. |
| spellingShingle | Abulencia, A Adelman, J Affolder, T Akimoto, T Albrow, MG Ambrose, D Amerio, S Amidei, D Anastassov, A Anikeev, K Annovi, A Antos, J Aoki, M Apollinari, G Arguin, J Arisawa, T Artikov, A Ashmanskas, W Attal, A Azfar, F Azzi-Bacchetta, P Azzurri, P Bacchetta, N Badgett, W Barbaro-Galtieri, A Search for V+A current in top-quark decays in pp collisions at sqrts=1.96 TeV. |
| title | Search for V+A current in top-quark decays in pp collisions at sqrts=1.96 TeV. |
| title_full | Search for V+A current in top-quark decays in pp collisions at sqrts=1.96 TeV. |
| title_fullStr | Search for V+A current in top-quark decays in pp collisions at sqrts=1.96 TeV. |
| title_full_unstemmed | Search for V+A current in top-quark decays in pp collisions at sqrts=1.96 TeV. |
| title_short | Search for V+A current in top-quark decays in pp collisions at sqrts=1.96 TeV. |
| title_sort | search for v a current in top quark decays in pp collisions at sqrts 1 96 tev |
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