CC1π+ to CCQE cross sections ratio at accelerator energies

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MiniBooNE and K2K collaborations have recently reported the ratio for the νμ induced charge current 1π+ production cross section to the charged current induced quasielastic lepton production cross section i.e. R(E)=σCC1π+σCCQE. In this paper we study, theoretically, in a local density approximation the effect of nuclear medium in charged current quasielastic(CCQE) and charged current one pion production(CC1π+) processes for the νμ induced reaction in nuclei. The theoretical results have been compared with the results of experimental observations by the MiniBooNE and K2K collaborations. The ratio R(E) for νμ induced reaction in water for the proposed T2K experiment is also presented.