0.2 \,\mathrm{GeV}^2$, the exponential factor in [eq. (\[eq:schwinger\])]{} is very close to 1, and therefore not significantly changed by an increased string tension.) The second free parameter in the model (when flavours and spin are neglected) is the parameter $N$ in [eq. (\[eq:Lund\])]{}, which specifies the relative weights between hadron states with different multiplicities. As the density of hadronic states ought to be independent of the former colour configuration, we do not expect any change in the $N$-parameter, although we admit that such modifications cannot be excluded when the mesons are produced in a stronger field.

Although the $b$-parameter would be unchanged if only light quarks were produced, it will increase slightly due to the enhanced production probability for strange quarks and diquarks, given by an increased exponential factor in [eq. (\[eq:schwinger\])]{}. This gives a shift $$b \mapsto \tilde{b} = \frac{2 + \tilde{\rho}}{2 + \rho}\,b.
\label{eq:hscaling3}$$ As the $a$-parameter is calculated from the normalization constraint for the splitting function in [eq. (\[eq:split\])]{}, it will get a correspondingly moderate modification. The effect on the parameters $a$ and $b$ is also shown in [figure [\[fig:effpar\]]{}]{}, and we see that these parameters are less affected by an increased string tension than the parameters 