تقرير
Evidence for single top quark production at D0
العنوان: | Evidence for single top quark production at D0 |
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المؤلفون: | Garcia-Bellido, Aran |
سنة النشر: | 2007 |
المجموعة: | High Energy Physics - Experiment |
مصطلحات موضوعية: | High Energy Physics - Experiment |
الوصف: | The results of the first analysis to show evidence for production of single top quarks are presented. Using 0.9 fb-1 of data collected with the D0 detector at the Fermilab Tevatron, the analysis is performed in the electron+jets and muon+jets decay modes, taking special care in modeling the large backgrounds, applying a new powerful b-quark tagging algorithm and using three multivariate techniques to extract the small signal in the data. The combined measured production cross section is 4.8 +- 1.3 pb. The probability to measure a cross section at this value or higher in the absence of a signal is 0.027%, corresponding to a 3.5 standard deviation significance. Comment: 6 pages, 4 figures. Presented at 42nd Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, Italy, 10-17 Mar 2007 |
نوع الوثيقة: | Working Paper |
URL الوصول: | http://arxiv.org/abs/0706.0037 |
رقم الأكسشن: | edsarx.0706.0037 |
قاعدة البيانات: | arXiv |
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