Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Determination of the strong coupling constant $\alpha_s(M_Z)$ in
  next-to-next-to-leading order QCD using H1 jet cross section measurements   The strong coupling constant $\alpha_s(M_Z)$ is determined from inclusive jet
and dijet cross sections in neutral-current deep-inelastic $ep$ scattering
(DIS) measured at HERA by the H1 collaboration using next-to-next-to-leading
order (NNLO) QCD predictions. The dependence of the NNLO predictions and of the
resulting value of $\alpha_s(M_Z)$ at the $Z$-boson mass $m_Z$ are studied as a
function of the choice of the renormalisation and factorisation scales. Using
inclusive jet and dijet data together, the strong coupling constant is
determined to be $\alpha_s(M_Z)=0.1166\,(19)_{\rm exp}\,(24)_{\rm th}$.
Complementary, $\alpha_s(M_Z)$ is determined together with parton distribution
functions of the proton (PDFs) from jet and inclusive DIS data measured by the
H1 experiment. The value $\alpha_s(M_Z)=0.1147\,(25)_{\rm tot}$ obtained is
consistent with the determination from jet data alone. The impact of the jet
data on the PDFs is studied. The running of the strong coupling is tested at
different values of the renormalisation scale and the results are found to be
in agreement with expectations.

23
The categories of this paper are: solv-int
17
The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
7
The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom
12
The categories of this paper are: nucl-th
31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys
24
The categories of this paper are: dg-ga
25
The categories of this paper are: patt-sol
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
30
The categories of this paper are: q-alg
2
The categories of this paper are: math
29
The categories of this paper are: funct-an