Charm Mass Determination from QCD Sum Rules: A Revision of the Classical Method
- Autor(en)
- Vicent Mateu, André H. Hoang, B. Dehnadi, Seyyed Mojtaba Zebarjad
- Abstrakt
In this work we take a revised look at the charm quark mass determination from QCD sum rules analyses. On the theoretical side we use the most up to date calculations (amounting to up Omicron(alpha(3)(s) expressions) and on the experimental side, to our knowledge, the most complete data set (maximum coverage of the energy spectrum). We reconsider the estimate of perturbative uncertainties (due to truncation of the series in alpha (s) ) proposing four alternative methods (equivalent in perturbation theory) to determine the (MS) over bar charm quark mass. We also use a very robust method to combine data from different experiments when systematic correlated errors are mainly due to normalization. This allows to use experimental data up to 10.5GeV, and to quantify statistic and systematic experimental errors in a meaningful way.
- Organisation(en)
- Teilchenphysik
- Externe Organisation(en)
- Shiraz University, Max-Planck-Institut für Physik (Werner-Heisenberg-Institut)
- Seiten
- 207-209
- Anzahl der Seiten
- 3
- DOI
- https://doi.org/10.1007/s00601-010-0144-2
- Publikationsdatum
- 2011
- ÖFOS 2012
- 103036 Theoretische Physik, 103008 Experimentalphysik, 103024 Quantenfeldtheorie, 103034 Teilchenphysik
- Link zum Portal
- https://ucris.univie.ac.at/portal/de/publications/charm-mass-determination-from-qcd-sum-rules-a-revision-of-the-classical-method(ebe49697-507f-4506-bbb0-72fdd4c11195).html