Abstract
Measurements of open charm and beauty production at HERA provide important input for stringent tests of quantum chromodynamics and are used to constrain the parton distribution functions of the proton. The recent results on the heavy flavour production obtained by the H1 and ZEUS experiments at HERA are reviewed in this contribution.
Highlights
The zero-mass variable-flavour-number-scheme (ZM-VFNS): in this scheme only three light flavours are participating in the parton evolution and the charm quark is treated as a massless parton above the threshold at Q2 ∼ charm quark mass, m2C
Fixed Flavour Number Scheme (FFNS): heavy quarks are treated as massive at all scales but they are not considered as partons in the proton
General Mass Variable Flavour Number Scheme (GM-VFNS) profits from the advantages of those two schemes, at the interpolation region some level of arbitrariness is introduced for the treatment of heavy quarks
Summary
This content has been downloaded from IOPscience. Please scroll down to see the full text. Ser. 556 012022 (http://iopscience.iop.org/1742-6596/556/1/012022) View the table of contents for this issue, or go to the journal homepage for more. Download details: IP Address: 131.169.3.198 This content was downloaded on 23/10/2015 at 11:40 Please note that terms and conditions apply
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
