Charm quark mass dependence in the CTEQ NNLO global QCD analysis

Jun Gao; Marco Guzzi; Pavel M. Nadolsky

Charm quark mass dependence in the CTEQ NNLO global QCD analysis

High Energy Physics - Phenomenology 2013-07-01 v2

Authors: Jun Gao , Marco Guzzi , Pavel M. Nadolsky

Abstract

We discuss the impact of the charm quark mass in the CTEQ NNLO global analysis of parton distribution functions of the proton. The $\bar{\rm MS}$ mass $m_c(m_c)$ of the charm quark is extracted in the S-ACOT- $\chi$ heavy-quark factorization scheme at ${\cal O}(\alpha_s^2)$ accuracy and found to be in agreement with the world-average value. Impact on $m_c(m_c)$ of combined HERA-1 data on semiinclusive charm production at HERA collider and contributing systematic uncertainties are reviewed.

Keywords

charm quark mass cteq nnlo global qcd analysis parton distribution functions s-acot-$\chi$ scheme heavy-quark factorization hera data

Cite

@article{arxiv.1306.5319,
  title  = {Charm quark mass dependence in the CTEQ NNLO global QCD analysis},
  author = {Jun Gao and Marco Guzzi and Pavel M. Nadolsky},
  journal= {arXiv preprint arXiv:1306.5319},
  year   = {2013}
}

Comments

5 pages, 2 figures. Conference proceedings DIS2013: International Workshop on Deep-Inelastic Scattering and Related Subjects, April 22 - 26, 2013, Marseilles, France

Charm quark mass dependence in the CTEQ NNLO global QCD analysis

Abstract

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