Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Experimental momentum spectra of identified hadrons in jets and the
  predictions from LPHD + MLLA   Experimental data on the shape of hadronic momentum spectra are compared with
theoretical predictions in the context of calculations in the Modified Leading
Log Approximation (MLLA), under the assumption of Local Parton Hadron Duality
(LPHD). Considered are experimental measurements at $e^+e^-$-colliders of
$\xi_p^*$, the position of the maximum in the distribution of
$\xi_p=\log(1/x_p)$, where $x_p=p/p_{beam}$. The parameter $\xi_p^*$ is
determined for various hadrons at various centre of mass energies. It is
interesting to look at the dependence of $\xi^*_p$ on the hadron type. This is
used to study the influence of the hadron type on the cut-off scale $Q_0$ in
the parton shower development. The dependence of $\xi^*_p$ on the centre of
mass energy is seen to be described adequately by perturbation theory. The
approach is made quantitative by extracting a value of $\alpha_s(m_Z)$ from an
overall fit to the scaling behaviour of $\xi^*_p$.

6
The categories of this paper are: astro-ph
21
The categories of this paper are: adap-org
12
The categories of this paper are: nucl-th
3
The categories of this paper are: physics
22
The categories of this paper are: chao-dyn
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
4
The categories of this paper are: cond-mat
27
The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
31
The categories of this paper are: ao-sci