  The $p_T$ distributions of the $K^0$- and $\phi$ - mesons produced in the
$pp$ collisions at $\sqrt{s}=2.76 TeV$ have been analyzed by fitting them using
the exponential function. It was observed that the distributions contain
several $p_T$ regions similar to the cases with the charged particles, $\pi^0$-
and $\eta$- mesons produced in the same events. These regions could be
characterized using three variables: the length of the region $L^{c}_K $ and
free fitting parameters $a^{c}_K $ and $b^{c}_K $. It was observed that the
values of the parameters as a function of energy grouped around certain lines
and there are jump-like changes. These observations together with the effect of
existing the several $p_T$ regions can say on discrete energy dependencies for
the $L^{c}_K $ , $a^{c}_K $ and $b^{c}_K $. The lengths of the regions increase
with the mass of the particles. This increase gets stronger with energy. The
mass dependencies of the parameters $a^{c}_K $ and $b^{c}_K $ show a regime
change at a mass $\simeq 500 MeV/c^2$. According to the phenomenology of string
theory, these results could be explained by two processes occurring
simultaneously: string hadronization and string breaking. In the experiment we
can only measure the spectrum of the hadronized particles, since we cannot
access the spectrum of the strings themselves. The string breaking effect could
be a signal of string formations and the reason behind the observation of
several $p_T$ regions and the jump-like changes for the characteristics of the
regions.
