10.3204/DESY-PROC-2012-02/272
Stavreva, T.
T.
Stavreva
Olness, F. I.
F. I.
Olness
Schienbein, I.
I.
Schienbein
Jezo, T.
T.
Jezo
Kusina, A.
A.
Kusina
Kovarik, K.
K.
Kovarik
Yu, J. Y.
J. Y.
Yu
Heavy Quark Production in the ACOT Scheme Beyond NLO.
Deutsches Elektronen-Synchrotron, DESY, Hamburg
2013
ConferencePaper
Physics
2013
en
Abstract
Proc. of DIS 2012, 243-246; DESY
We analyze the properties of the ACOT scheme for heavy quark production
and make use of the $\msbar$ massless results at NNLO and N$^{3}$LO
for the structure functions $F_{2}$ and $F_{L}$ in neutral current
deep-inelastic scattering to estimate the higher order corrections.
The dominant heavy quark mass effects at higher orders can be
taken into account using the massless Wilson coefficients together
with an appropriate slow-rescaling prescription implementing the
phase space constraints. Combining the exact ACOT scheme at NLO with
these expressions should provide a good approximation to the full
calculation in the ACOT scheme at NNLO and N$^{3}$LO.
Proc. of DIS 2012, 243 - 246; DESY-PROC-2012-02; ISSN 1435-8077