Abstract
We present results on A-dependence of diffraction dissociation (DD) phenomenon in interactions of muonic neutrino with nuclei at various values of momentum transfer. Calculations were done within the two-gluon exchange model by Nikolaev-Zakharov-Zoller(NZZ). Comparison with experimental data obtained in interactions of muonic neutrino with photoemulsion nuclei is carried out. All data are presented as ratio of the DD cross section to the deep inelastic cross section.
Highlights
When working on analysis of electroproduction data on muon interactions with xenon nuclei the theoretical group leading by N.N
Nikolaev noticed that the contribution of diffractive dissociation (DD) processes on heavy nuclei can reach at definite values of kinematical variables one half of the total deep inelastic scatering (DIS) cross section [1,2,3,4]
The ratio R given in these papers is σ(DD)=σ(DIS) close 0.1 being consistent with the NZZ estimate within experimental errors
Summary
When working on analysis of electroproduction data (the experiment E-665/FNAL/) on muon interactions with xenon nuclei the theoretical group leading by N.N. Nikolaev noticed that the contribution of diffractive dissociation (DD) processes on heavy nuclei can reach at definite values of kinematical variables one half of the total deep inelastic scatering (DIS) cross section [1,2,3,4]. The ratio R given in these papers is σ(DD)=σ(DIS) close 0.1 being consistent with the NZZ estimate within experimental errors. The process of the diffraction dissociation is described by diagram of Fig.. The diffraction dissociation process can be described with this diagram in the DD kinematics when the events are characterized by large (pseudo) rapidity gap (LRG) Δη between the recoil proton (nucleus) and hadrons produced due to the neutrino diffraction dissociation: Δη = log(W2/Q2) = log(1/x) - log(M2/Q2) ,. Our calculations of the A-dependence for neutrinonucleus interactions using the NZZ model are presented at Fig..
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