First direct measurement of the parity-violating coupling of the Z0 to the s quark
We present the first direct measurement of As, the parity-violating coupling of the Z0 boson to the strange quark, using ∼550 000 e+e- → Z0 → hadrons events recorded by the SLC Large Detector with a polarized e- beam. We tagged Z0 → ss̄ events by the absence of B or D hadrons and the presence in eac...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , |
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| פורמט: | Journal article |
| שפה: | English |
| יצא לאור: |
2000
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| _version_ | 1826300315014529024 |
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| author | Abe, K Abe, K Abe, T Adam, I Akimoto, H Aston, D Baird, K Baltay, C Band, H Barklow, T Bauer, J Bellodi, G Berger, R Blaylock, G Bogart, JR Bower, G Brau, J Breidenbach, M Bugg, WM Burke, D Burnett, T Burrows, P Calcaterra, A Cassell, R Chou, A |
| author_facet | Abe, K Abe, K Abe, T Adam, I Akimoto, H Aston, D Baird, K Baltay, C Band, H Barklow, T Bauer, J Bellodi, G Berger, R Blaylock, G Bogart, JR Bower, G Brau, J Breidenbach, M Bugg, WM Burke, D Burnett, T Burrows, P Calcaterra, A Cassell, R Chou, A |
| author_sort | Abe, K |
| collection | OXFORD |
| description | We present the first direct measurement of As, the parity-violating coupling of the Z0 boson to the strange quark, using ∼550 000 e+e- → Z0 → hadrons events recorded by the SLC Large Detector with a polarized e- beam. We tagged Z0 → ss̄ events by the absence of B or D hadrons and the presence in each hemisphere of a high momentum K± or Ks0. Fitting the polar angle distributions of the strangeness-signed thrust axis gave As = 0.895 ± 0.066(stat) ± 0.062(syst). The analyzing power and uū + dd̄ background were constrained using the data, greatly reducing any model dependence. © 2000 The American Physical Society. |
| first_indexed | 2024-03-07T05:15:16Z |
| format | Journal article |
| id | oxford-uuid:dcf0cde9-dc64-4190-af98-0f54d088082a |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T05:15:16Z |
| publishDate | 2000 |
| record_format | dspace |
| spelling | oxford-uuid:dcf0cde9-dc64-4190-af98-0f54d088082a2022-03-27T09:21:33ZFirst direct measurement of the parity-violating coupling of the Z0 to the s quarkJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:dcf0cde9-dc64-4190-af98-0f54d088082aEnglishSymplectic Elements at Oxford2000Abe, KAbe, KAbe, TAdam, IAkimoto, HAston, DBaird, KBaltay, CBand, HBarklow, TBauer, JBellodi, GBerger, RBlaylock, GBogart, JRBower, GBrau, JBreidenbach, MBugg, WMBurke, DBurnett, TBurrows, PCalcaterra, ACassell, RChou, AWe present the first direct measurement of As, the parity-violating coupling of the Z0 boson to the strange quark, using ∼550 000 e+e- → Z0 → hadrons events recorded by the SLC Large Detector with a polarized e- beam. We tagged Z0 → ss̄ events by the absence of B or D hadrons and the presence in each hemisphere of a high momentum K± or Ks0. Fitting the polar angle distributions of the strangeness-signed thrust axis gave As = 0.895 ± 0.066(stat) ± 0.062(syst). The analyzing power and uū + dd̄ background were constrained using the data, greatly reducing any model dependence. © 2000 The American Physical Society. |
| spellingShingle | Abe, K Abe, K Abe, T Adam, I Akimoto, H Aston, D Baird, K Baltay, C Band, H Barklow, T Bauer, J Bellodi, G Berger, R Blaylock, G Bogart, JR Bower, G Brau, J Breidenbach, M Bugg, WM Burke, D Burnett, T Burrows, P Calcaterra, A Cassell, R Chou, A First direct measurement of the parity-violating coupling of the Z0 to the s quark |
| title | First direct measurement of the parity-violating coupling of the Z0 to the s quark |
| title_full | First direct measurement of the parity-violating coupling of the Z0 to the s quark |
| title_fullStr | First direct measurement of the parity-violating coupling of the Z0 to the s quark |
| title_full_unstemmed | First direct measurement of the parity-violating coupling of the Z0 to the s quark |
| title_short | First direct measurement of the parity-violating coupling of the Z0 to the s quark |
| title_sort | first direct measurement of the parity violating coupling of the z0 to the s quark |
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