تقرير
A determination of mc(mc) from HERA data using a matched heavy-flavor scheme
| العنوان: | A determination of mc(mc) from HERA data using a matched heavy-flavor scheme |
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| المؤلفون: | team, xFitter Developers', Bertone, Valerio, Camarda, Stefano, Cooper-Sarkar, Amanda, Glazov, Alexandre, Luszczak, Agnieszka, Pirumov, Hayk, Placakyte, Ringaile, Rabbertz, Klaus, Radescu, Voica, Rojo, Juan, Sapranov, Andrey, Zenaiev, Oleksandr, Geiser, Achim |
| سنة النشر: | 2016 |
| المجموعة: | High Energy Physics - Phenomenology |
| مصطلحات موضوعية: | High Energy Physics - Phenomenology |
| الوصف: | The charm quark mass is one of the fundamental parameters of the Standard Model Lagrangian. In this work we present a determination of the MSbar charm mass from a fit to the inclusive and charm HERA deep-inelastic structure function data. The analysis is performed within the xFitter framework, with structure functions computed in the FONLL general-mass scheme as implemented in APFEL. In the case of the FONLL-C scheme, we obtain mc(mc) = 1.335 +- 0.043(exp) +0.019 -0.000(param) +0.011 -0.008(mod) +0.033 -0.008(th) GeV. We also perform an analogous determination in the fixed-flavor-number scheme at next-to-leading order, finding mc(mc) = 1.318 +- 0.054(exp) +0.011 -0.010(param) +0.015 -0.019(mod) +0.045 -0.004(th) GeV, compatible with the FONLL-C value. Our results are consistent with previous determinations from DIS data as well as with the PDG world average. Comment: 37 pages, 12 figures, 3 tables |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/1605.01946 |
| رقم الأكسشن: | edsarx.1605.01946 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |