  The Minimal R-symmetric Supersymmetric Standard Model (MRSSM) provides a
realisation of supersymmetry in which the parameter space is less constrained
by the current LHC data than in the simplest supersymmetric scenarios. In the
present paper, we obtain the most precise theoretical predictions in the MRSSM
for squark production at the LHC, enabling accurate interpretations of LHC data
in terms of the MRSSM. We perform threshold resummation of soft gluon
corrections to the total cross sections for the production of
squark-(anti)squark pairs at the LHC in the MRSSM framework. The resummation is
carried out using the direct QCD method and reaches the
next-to-next-to-leading-logarithmic (NNLL) accuracy, which requires calculating
the one-loop matching coefficients in the relevant production channels. The
resummed cross sections are then matched to the available NLO results and
evaluated for $\sqrt{S}=13.6$ TeV. Compared with the Minimal Supersymmetric
Standard Model (MSSM), the cross sections in the MRSSM can be significantly
reduced, implying less stringent limits on squark and gluino masses. Our
results carry significant implications for exploring the viability of
supersymmetry at the LHC. The results of our calculation are publicly available
as a numerical package.
