<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def _sigma_pi_midE(self, Tp):
 """ Geant 4.10.0 model for 2 GeV < Tp < 5 GeV """

        m_p = self._m_p
        Qp = (Tp - self._Tth) / m_p
        multip = -6e-3 + 0.237 * Qp - 0.023 * Qp ** 2
        return self._sigma_inel(Tp) * multip