Charge asymmetry and weak interaction effects in e+e-→μ+μ- and e+e-→τ+τ-
We have measured, at an average centre-of-mass energy of 34.22 GeV a forward-backward charge asymmetry in the reaction e+e-→μ+μ- of value -0.161 ± 0.032. This demonstrates the existence of an axial vector neutral current with coupling strength of geagμa=0.53 ± 0.10. We have also obtained a limit on...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
1982
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| _version_ | 1826291258330447872 |
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| author | Brandelik, R Braunschweig, W Gather, K Kirschfink, F Lübelsmeyer, K Martyn, H Peise, G Rimkus, J Sander, H Schmitz, D Trines, D Wallraff, W Boerner, H Fischer, H Hartmann, H Hilger, E Hillen, W Knop, G Köpke, L Kolanoski, H Löhr, B Wedemeyer, R Wermes, N Wollstadt, M Burkhardt, H |
| author_facet | Brandelik, R Braunschweig, W Gather, K Kirschfink, F Lübelsmeyer, K Martyn, H Peise, G Rimkus, J Sander, H Schmitz, D Trines, D Wallraff, W Boerner, H Fischer, H Hartmann, H Hilger, E Hillen, W Knop, G Köpke, L Kolanoski, H Löhr, B Wedemeyer, R Wermes, N Wollstadt, M Burkhardt, H |
| author_sort | Brandelik, R |
| collection | OXFORD |
| description | We have measured, at an average centre-of-mass energy of 34.22 GeV a forward-backward charge asymmetry in the reaction e+e-→μ+μ- of value -0.161 ± 0.032. This demonstrates the existence of an axial vector neutral current with coupling strength of geagμa=0.53 ± 0.10. We have also obtained a limit on the vector coupling strength of gevgμv<0.12. The Weinberg angle is found to be sin2θW=0.29+0.09-0.11. From the reaction e+e-→τ+τ- we have found geagτa<0.34, gevgτv<0.55. © 1982. |
| first_indexed | 2024-03-07T02:56:44Z |
| format | Journal article |
| id | oxford-uuid:af8d2661-4d4d-40c4-a3c9-dd6400d03468 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T02:56:44Z |
| publishDate | 1982 |
| record_format | dspace |
| spelling | oxford-uuid:af8d2661-4d4d-40c4-a3c9-dd6400d034682022-03-27T03:50:23ZCharge asymmetry and weak interaction effects in e+e-→μ+μ- and e+e-→τ+τ-Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:af8d2661-4d4d-40c4-a3c9-dd6400d03468EnglishSymplectic Elements at Oxford1982Brandelik, RBraunschweig, WGather, KKirschfink, FLübelsmeyer, KMartyn, HPeise, GRimkus, JSander, HSchmitz, DTrines, DWallraff, WBoerner, HFischer, HHartmann, HHilger, EHillen, WKnop, GKöpke, LKolanoski, HLöhr, BWedemeyer, RWermes, NWollstadt, MBurkhardt, HWe have measured, at an average centre-of-mass energy of 34.22 GeV a forward-backward charge asymmetry in the reaction e+e-→μ+μ- of value -0.161 ± 0.032. This demonstrates the existence of an axial vector neutral current with coupling strength of geagμa=0.53 ± 0.10. We have also obtained a limit on the vector coupling strength of gevgμv<0.12. The Weinberg angle is found to be sin2θW=0.29+0.09-0.11. From the reaction e+e-→τ+τ- we have found geagτa<0.34, gevgτv<0.55. © 1982. |
| spellingShingle | Brandelik, R Braunschweig, W Gather, K Kirschfink, F Lübelsmeyer, K Martyn, H Peise, G Rimkus, J Sander, H Schmitz, D Trines, D Wallraff, W Boerner, H Fischer, H Hartmann, H Hilger, E Hillen, W Knop, G Köpke, L Kolanoski, H Löhr, B Wedemeyer, R Wermes, N Wollstadt, M Burkhardt, H Charge asymmetry and weak interaction effects in e+e-→μ+μ- and e+e-→τ+τ- |
| title | Charge asymmetry and weak interaction effects in e+e-→μ+μ- and e+e-→τ+τ- |
| title_full | Charge asymmetry and weak interaction effects in e+e-→μ+μ- and e+e-→τ+τ- |
| title_fullStr | Charge asymmetry and weak interaction effects in e+e-→μ+μ- and e+e-→τ+τ- |
| title_full_unstemmed | Charge asymmetry and weak interaction effects in e+e-→μ+μ- and e+e-→τ+τ- |
| title_short | Charge asymmetry and weak interaction effects in e+e-→μ+μ- and e+e-→τ+τ- |
| title_sort | charge asymmetry and weak interaction effects in e e μ μ and e e τ τ |
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