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The flux of photons with energies above 1 TeV from the direction of thecentre and a cloud in the western part of the nearby southern supernova remnant(SNR) RX J1713.7-3946 is calculated in the ``hadronic scenario'' that aims toexplain the intense VHE radiation from this remnant with the decay of \pi_0pions produced in nuclear collisions. The expected flux from its centre isfound to fall short by about factor 40 from the one observed by the HESScollaboration. This discrepancy presents a serious obstacle to the ``hadronicscenario''. The theoretically expected flux from the molecular cloud exceedsthe one observed by HESS by at least a factor 3. While the size of thisdiscrepancy might still seem acceptable in the face of various theoreticaluncertainties, the result strongly suggests a strict spatial correlation of thecloud with an excess of TeV \gamma radiation. The observational lack of suchcorrelations in the remnant reported by HESS is another counter argumentagainst the hadronic scenario. In combination these arguments cannot be refutedby choosing certain parameters for the total energy or acceleration efficiencyof the SNR.

Arguments against a dominantly hadronic origin of the VHE radiation from the supernova remnant RX J1713-3946