Helicity of the W boson in lepton + jets tt̄ events
We examine properties of tt̄ candidate events in lepton + jets final states to establish the helicities of W bosons in t→W+b decays. Our analysis is based on a direct calculation of a probability density for each event to correspond to a tt̄ final state, as a function of the helicity of the W boson....
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Journal article |
| Language: | English |
| Published: |
2005
|
| _version_ | 1797081218635792384 |
|---|---|
| author | Abazov, V Abbott, B Abdesselam, A Abolins, M Abramov, V Acharya, B Adams, D Adams, M Ahmed, SN Alexeev, G Alton, A Alves, G Arnoud, Y Avila, C Babintsev, V Babukhadia, L Bacon, T Baden, A Baffioni, S Baldin, B Balm, P Banerjee, S Barberis, E Baringer, P Barreto, J |
| author_facet | Abazov, V Abbott, B Abdesselam, A Abolins, M Abramov, V Acharya, B Adams, D Adams, M Ahmed, SN Alexeev, G Alton, A Alves, G Arnoud, Y Avila, C Babintsev, V Babukhadia, L Bacon, T Baden, A Baffioni, S Baldin, B Balm, P Banerjee, S Barberis, E Baringer, P Barreto, J |
| author_sort | Abazov, V |
| collection | OXFORD |
| description | We examine properties of tt̄ candidate events in lepton + jets final states to establish the helicities of W bosons in t→W+b decays. Our analysis is based on a direct calculation of a probability density for each event to correspond to a tt̄ final state, as a function of the helicity of the W boson. Using the 125 events/pb of data collected by the DØ experiment at the Fermilab Tevatron pp̄ Collider at s=1.8 TeV, we obtain a longitudinal helicity fraction F0=0.56±0.31, consistent with the prediction of F0=0.70 from the standard model. © 2005 Elsevier B.V. All rights reserved. |
| first_indexed | 2024-03-07T01:11:28Z |
| format | Journal article |
| id | oxford-uuid:8d272f42-b6be-4153-854c-bcabee04d93d |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T01:11:28Z |
| publishDate | 2005 |
| record_format | dspace |
| spelling | oxford-uuid:8d272f42-b6be-4153-854c-bcabee04d93d2022-03-26T22:49:27ZHelicity of the W boson in lepton + jets tt̄ eventsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:8d272f42-b6be-4153-854c-bcabee04d93dEnglishSymplectic Elements at Oxford2005Abazov, VAbbott, BAbdesselam, AAbolins, MAbramov, VAcharya, BAdams, DAdams, MAhmed, SNAlexeev, GAlton, AAlves, GArnoud, YAvila, CBabintsev, VBabukhadia, LBacon, TBaden, ABaffioni, SBaldin, BBalm, PBanerjee, SBarberis, EBaringer, PBarreto, JWe examine properties of tt̄ candidate events in lepton + jets final states to establish the helicities of W bosons in t→W+b decays. Our analysis is based on a direct calculation of a probability density for each event to correspond to a tt̄ final state, as a function of the helicity of the W boson. Using the 125 events/pb of data collected by the DØ experiment at the Fermilab Tevatron pp̄ Collider at s=1.8 TeV, we obtain a longitudinal helicity fraction F0=0.56±0.31, consistent with the prediction of F0=0.70 from the standard model. © 2005 Elsevier B.V. All rights reserved. |
| spellingShingle | Abazov, V Abbott, B Abdesselam, A Abolins, M Abramov, V Acharya, B Adams, D Adams, M Ahmed, SN Alexeev, G Alton, A Alves, G Arnoud, Y Avila, C Babintsev, V Babukhadia, L Bacon, T Baden, A Baffioni, S Baldin, B Balm, P Banerjee, S Barberis, E Baringer, P Barreto, J Helicity of the W boson in lepton + jets tt̄ events |
| title | Helicity of the W boson in lepton + jets tt̄ events |
| title_full | Helicity of the W boson in lepton + jets tt̄ events |
| title_fullStr | Helicity of the W boson in lepton + jets tt̄ events |
| title_full_unstemmed | Helicity of the W boson in lepton + jets tt̄ events |
| title_short | Helicity of the W boson in lepton + jets tt̄ events |
| title_sort | helicity of the w boson in lepton jets tt events |
| work_keys_str_mv | AT abazovv helicityofthewbosoninleptonjetsttevents AT abbottb helicityofthewbosoninleptonjetsttevents AT abdesselama helicityofthewbosoninleptonjetsttevents AT abolinsm helicityofthewbosoninleptonjetsttevents AT abramovv helicityofthewbosoninleptonjetsttevents AT acharyab helicityofthewbosoninleptonjetsttevents AT adamsd helicityofthewbosoninleptonjetsttevents AT adamsm helicityofthewbosoninleptonjetsttevents AT ahmedsn helicityofthewbosoninleptonjetsttevents AT alexeevg helicityofthewbosoninleptonjetsttevents AT altona helicityofthewbosoninleptonjetsttevents AT alvesg helicityofthewbosoninleptonjetsttevents AT arnoudy helicityofthewbosoninleptonjetsttevents AT avilac helicityofthewbosoninleptonjetsttevents AT babintsevv helicityofthewbosoninleptonjetsttevents AT babukhadial helicityofthewbosoninleptonjetsttevents AT bacont helicityofthewbosoninleptonjetsttevents AT badena helicityofthewbosoninleptonjetsttevents AT baffionis helicityofthewbosoninleptonjetsttevents AT baldinb helicityofthewbosoninleptonjetsttevents AT balmp helicityofthewbosoninleptonjetsttevents AT banerjees helicityofthewbosoninleptonjetsttevents AT barberise helicityofthewbosoninleptonjetsttevents AT baringerp helicityofthewbosoninleptonjetsttevents AT barretoj helicityofthewbosoninleptonjetsttevents |