Top mass shift resulting from the recalibration of flavor-dependent jet energy corrections in the D{\O} lepton+jets top mass measurement
| Autor: | Siikonen, Hannu, Mäkelä, T., Voutilainen, M. |
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| Rok vydání: | 2021 |
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| Druh dokumentu: | Working Paper |
| Popis: | We review the possible effects of the miscalibration of the flavor-dependent Jet Energy Corrections ($F_{\mathrm{Corr}}$) on the D{\O} lepton+jets top mass measurement. The work is based on a previous study, where the D{\O} $F_{\mathrm{Corr}}$ calibration procedure was repeated based on the release of the internal D{\O} notes after a 5-year moratorium. The cited study was motivated by the extraordinary precision claimed by D{\O} in their top mass measurement. Using a Pythia6-based $F_{\mathrm{Corr}}$ recalibration, the $m_t$ result was shifted from 174.95 to 173.16 GeV. Moreover, utilizing a Herwig7-based $F_{\mathrm{Corr}}$ calibration (not accounted for in D{\O} studies), a shift down to 171.84 GeV was observed. We find this both convincing and specific evidence for re-reviewing a part of the $F_{\mathrm{Corr}}$ calibration process. However, D{\O} has been unwilling to open such studies or to provide other convincing counter-evidence. Comment: Poster at the 13th International Workshop on Top Quark Physics, Durham, UK (videoconference), 14-18 September 2020. In the second version, minor edits to phrasing have been applied to signify better the role of the authors. In the third version, minor language edits were made to enhance readability |
| Databáze: | arXiv |
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