alphas: compute alpha strong at given scale
Description
compute alpha strong (\(\alpha_s\)) at given scale \(\mu\)
up to N3LO in PT in the RI' renormalisation scheme.
Usage
alphas(mu, nl = 3, lam0 = 0.25, Nc = 3, Nf = 2, use.cimpl = TRUE)
Arguments
mu
the renormalisation scale \(\mu\) in GeV
nl
order in PT, range 0 to 3
lam0
\(\Lambda_\mathrm{QCD}\) in GeV
Nc
number of colours \(N_c\), defaults to 3
Nf
number of flavours \(N_f\), default is 2
use.cimpl
Use the C implementation instead of the R implementation,
which might improve speed.
Value
returns the value of alpha strong \(\alpha_s\) at scale
\(\mu\)
Examples
Run this code# NOT RUN {
alphas(mu=2.0, nl=3)
# }
Run the code above in your browser using DataLab