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Search for Single Leptoquark Production in Electron-Photon Scattering at $\sqrt{s}$ = 161 and 172 GeV
A search for a first generation scalar leptoquark (LQ) has been performed using the data collected by the OPAL detector in 1996 at e+e- centre-of-mass energies sqrt{s} of 161 and 172 GeV. It is assumed that a single leptoquark can be produced in the process eq->LQ, where the initial state quark o...
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| Lenguaje: | eng |
| Publicado: |
1997
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| Acceso en línea: | http://cds.cern.ch/record/327209 |
| _version_ | 1780890976043139072 |
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| author | Soldner-Rembold, Stefan |
| author_facet | Soldner-Rembold, Stefan |
| author_sort | Soldner-Rembold, Stefan |
| collection | CERN |
| description | A search for a first generation scalar leptoquark (LQ) has been performed using the data collected by the OPAL detector in 1996 at e+e- centre-of-mass energies sqrt{s} of 161 and 172 GeV. It is assumed that a single leptoquark can be produced in the process eq->LQ, where the initial state quark originates from a hadronic fluctuation of a quasi-real photon which has been radiated by one of the LEP beams. Lower limits at the 95 % confidence level on the mass of a first generation scalar leptoquark of 131 GeV for beta=0.5 and beta=1, coupling values lambda larger than sqrt{4*pi*alpha_em) and leptoquark charges -1/3 or -5/3 are obtained. |
| id | cern-327209 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 1997 |
| record_format | invenio |
| spelling | cern-3272092023-03-14T18:54:12Zhttp://cds.cern.ch/record/327209engSoldner-Rembold, StefanSearch for Single Leptoquark Production in Electron-Photon Scattering at $\sqrt{s}$ = 161 and 172 GeVParticle Physics - ExperimentA search for a first generation scalar leptoquark (LQ) has been performed using the data collected by the OPAL detector in 1996 at e+e- centre-of-mass energies sqrt{s} of 161 and 172 GeV. It is assumed that a single leptoquark can be produced in the process eq->LQ, where the initial state quark originates from a hadronic fluctuation of a quasi-real photon which has been radiated by one of the LEP beams. Lower limits at the 95 % confidence level on the mass of a first generation scalar leptoquark of 131 GeV for beta=0.5 and beta=1, coupling values lambda larger than sqrt{4*pi*alpha_em) and leptoquark charges -1/3 or -5/3 are obtained.A search for a first generation scalar leptoquark (LQ) has been performed using the data collected by the OPAL detector in 1996 at e+e- centre-of-mass energies sqrt{s} of 161 and 172 GeV. It is assumed that a single leptoquark can be produced in the process eq->LQ, where the initial state quark originates from a hadronic fluctuation of a quasi-real photon which has been radiated by one of the LEP beams. Lower limits at the 95 % confidence level on the mass of a first generation scalar leptoquark of 131 GeV for beta=0.5 and beta=1, coupling values lambda larger than sqrt{4*pi*alpha_em) and leptoquark charges -1/3 or -5/3 are obtained.hep-ex/9706003FREIBURG-EHEP-97-04FREIBURG-EHEP-97-04oai:cds.cern.ch:3272091997-06-05 |
| spellingShingle | Particle Physics - Experiment Soldner-Rembold, Stefan Search for Single Leptoquark Production in Electron-Photon Scattering at $\sqrt{s}$ = 161 and 172 GeV |
| title | Search for Single Leptoquark Production in Electron-Photon Scattering at $\sqrt{s}$ = 161 and 172 GeV |
| title_full | Search for Single Leptoquark Production in Electron-Photon Scattering at $\sqrt{s}$ = 161 and 172 GeV |
| title_fullStr | Search for Single Leptoquark Production in Electron-Photon Scattering at $\sqrt{s}$ = 161 and 172 GeV |
| title_full_unstemmed | Search for Single Leptoquark Production in Electron-Photon Scattering at $\sqrt{s}$ = 161 and 172 GeV |
| title_short | Search for Single Leptoquark Production in Electron-Photon Scattering at $\sqrt{s}$ = 161 and 172 GeV |
| title_sort | search for single leptoquark production in electron-photon scattering at $\sqrt{s}$ = 161 and 172 gev |
| topic | Particle Physics - Experiment |
| url | http://cds.cern.ch/record/327209 |
| work_keys_str_mv | AT soldnerremboldstefan searchforsingleleptoquarkproductioninelectronphotonscatteringatsqrts161and172gev |