Measurement of the running b-quark mass using e(+)e(-) -> b(b)over-barg events
We have studied the determination of the running b-quark mass, mb(MZ), using Z0 decays into 3 or more hadronic jets. We calculated the ratio of ≥ 3-jet fractions in e+e- → bb̄ versus e-e- qlq̄l (ql = u or d or s) events at next-to-leading order in perturbative QCD using six different infra-red- and...
| Main Authors: | , , , , |
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| Format: | Journal article |
| Language: | English |
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1999
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| _version_ | 1797060261189779456 |
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| author | Brandenburg, A Burrows, P Muller, D Oishi, N Uwer, P |
| author_facet | Brandenburg, A Burrows, P Muller, D Oishi, N Uwer, P |
| author_sort | Brandenburg, A |
| collection | OXFORD |
| description | We have studied the determination of the running b-quark mass, mb(MZ), using Z0 decays into 3 or more hadronic jets. We calculated the ratio of ≥ 3-jet fractions in e+e- → bb̄ versus e-e- qlq̄l (ql = u or d or s) events at next-to-leading order in perturbative QCD using six different infra-red- and collinear-safe jet-finding algorithms. We compared with corresponding measurements from the SLD Collaboration and found a significant algorithm-dependence of the fitted mb(MZ) value. Our best estimate, taking correlations into account, is mb(MZ) = 2.56 ± 0.27 (stat.) -0.38+0.28 (syst.) -1.48+0.49 (theor.) GeV/c2. © 1999 Published by Elsevier Science B.V. All rights reserved. |
| first_indexed | 2024-03-06T20:14:42Z |
| format | Journal article |
| id | oxford-uuid:2bc12961-d303-429f-a3da-627c9bee3e94 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T20:14:42Z |
| publishDate | 1999 |
| record_format | dspace |
| spelling | oxford-uuid:2bc12961-d303-429f-a3da-627c9bee3e942022-03-26T12:32:50ZMeasurement of the running b-quark mass using e(+)e(-) -> b(b)over-barg eventsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:2bc12961-d303-429f-a3da-627c9bee3e94EnglishSymplectic Elements at Oxford1999Brandenburg, ABurrows, PMuller, DOishi, NUwer, PWe have studied the determination of the running b-quark mass, mb(MZ), using Z0 decays into 3 or more hadronic jets. We calculated the ratio of ≥ 3-jet fractions in e+e- → bb̄ versus e-e- qlq̄l (ql = u or d or s) events at next-to-leading order in perturbative QCD using six different infra-red- and collinear-safe jet-finding algorithms. We compared with corresponding measurements from the SLD Collaboration and found a significant algorithm-dependence of the fitted mb(MZ) value. Our best estimate, taking correlations into account, is mb(MZ) = 2.56 ± 0.27 (stat.) -0.38+0.28 (syst.) -1.48+0.49 (theor.) GeV/c2. © 1999 Published by Elsevier Science B.V. All rights reserved. |
| spellingShingle | Brandenburg, A Burrows, P Muller, D Oishi, N Uwer, P Measurement of the running b-quark mass using e(+)e(-) -> b(b)over-barg events |
| title | Measurement of the running b-quark mass using e(+)e(-) -> b(b)over-barg events |
| title_full | Measurement of the running b-quark mass using e(+)e(-) -> b(b)over-barg events |
| title_fullStr | Measurement of the running b-quark mass using e(+)e(-) -> b(b)over-barg events |
| title_full_unstemmed | Measurement of the running b-quark mass using e(+)e(-) -> b(b)over-barg events |
| title_short | Measurement of the running b-quark mass using e(+)e(-) -> b(b)over-barg events |
| title_sort | measurement of the running b quark mass using e e gt b b over barg events |
| work_keys_str_mv | AT brandenburga measurementoftherunningbquarkmassusingeegtbboverbargevents AT burrowsp measurementoftherunningbquarkmassusingeegtbboverbargevents AT mullerd measurementoftherunningbquarkmassusingeegtbboverbargevents AT oishin measurementoftherunningbquarkmassusingeegtbboverbargevents AT uwerp measurementoftherunningbquarkmassusingeegtbboverbargevents |