Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Mean transverse mass of hadrons in proton-proton reactions   An energy dependence of the mean transverse mass $\langle m_T\rangle$ at
mid-rapidity in proton-proton ($p+p$) reactions is studied within the
ultra-relativistic quantum molecular dynamics (UrQMD). The UrQMD model predicts
a nonmonotonous dependence of $\langle m_T\rangle$ on collision energy for
several hadron species: for $\pi^+$, $p$, $K^+$, and $\Lambda$ the mean
transverse mass has a maximum at the center of mass energy region $5\le
\sqrt{s}\le 8$ GeV. These results are a consequence of an interplay of two
contributions: 1) excitations and decays of the baryonic resonances $N^*$ and
$\Delta$; 2) excitations and decays of the baryonic strings. The UrQMD results
do not show any nonmonotonous dependence of $\langle m_T\rangle$ on $\sqrt{s}$
for $\pi^-$, $K^{-}$, and antiprotons. Whether a nonmonotonous dependence of
$\langle m_T\rangle$ at mid-rapidity on the collision energy for $\pi^+$, $p$,
$K^+$, and $\Lambda$ is relevant for real $p+p$ interactions will be soon
checked experimentally by the NA61/SHINE Collaboration.

32
The categories of this paper are: atom-ph
14
The categories of this paper are: math-ph
9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
35
The categories of this paper are: mtrl-th
13
The categories of this paper are: quant-ph
29
The categories of this paper are: funct-an
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
10
The categories of this paper are: q-bio
16
The categories of this paper are: stat
19
The categories of this paper are: eess
7
The categories of this paper are: hep-th
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph