Experimental upper limit on diffractive dissociation in muon-neutrino interaction with photoemulsion nuclei according to data of the E-128 experiment (Protvino)

Abstract

The phenomenon of diffractive dissociation is experimentally estimated for neutrino interaction with photoemulsion nuclei. The results are based on data obtained in the SCIP experiment performed in a neutrino beam at the U-70 accelerator (Protvino). The data sample subjected to analysis included 670 charged-current events corresponding to neutrino interactions in the vertex detector. Events in which the Bjorken variable was x=0–0.1 were selected from this sample. Upon going over to the variable x′, which takes into account the nucleon mass, we set an upper limit of 0.53±0.07 on the diffractive-dissociation contribution to the total charged-current cross section.