Analysis Centre Seminar: "Heavy-flavor treatment at NNLO in CTEQ PDF analysis"
by
Marco Guzzi(Southern Methodist University)
→
Europe/Berlin
Lecture Hall (DESY)
Lecture Hall
DESY
Description
Correct computation of heavy-quark contributions to deep-inelastic
scattering in the global PDF analysis is essential for predicting precision cross sections
for W and Z boson production at the LHC.
Quark mass effects on DIS cross sections are comparable to next-to-next-to leading
order (NNLO) contributions, therefore they must be included consistently in perturbative
computations.
We illustrate the S-ACOT-\chi scheme which is the default general-mass
framework of CTEQ global PDF analyses and it is an improved formulation of the original ACOT scheme.
We discuss an NNLO realization of S-ACOT-\chi for treatment of heavy-flavour production in neutral
current deep-inelastic scattering. Practical implementation of the NNLO calculation is also illustrated
on the example of semi-inclusive structure functions F2c(x,Q) and FLc(x,Q).
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EVO connection:
Title: Analysis Centre Seminars
Description: Analysis Centre Seminars
Community: Terascale
Phone Bridge ID: 1312410
Meeting URL:
http://evo.vrvs.org/evoGate/koala.jnlp?meeting=MaMDMt222sDeDi9M98DI9a