# 6th International Workshop on Neutrino-Nucleus Interactions in the Few-GeV Region (NUINT 09)

May 18 – 22, 2009
Sitges (Barcelona) Spain

## Nuclear Effects in neutrino-nucleus DIS

May 21, 2009, 11:50 AM
30m
Sitges (Barcelona) Spain

#### Sitges (Barcelona) Spain

Palau Maricel Sitges (Barcelona) Spain
Talk Shallow to deep inelastic scattering

### Speaker

Prof. Shunzo Kumano (KEK)

### Description

I will review nuclear effects on neutrino-nucleus deeply inelastic scattering (DIS) and discuss the nuclear parton distributions functions (NPDFs). Due to the weak interaction, heavy nuclear target is needed to get high accuracy of the measurements. The nuclear effects on the structure function must be taken into account. These effects are already known by charged lepton-nucleus DIS experiments. In the ratio of the structure functions obtained by nucleus and deuteron targets; $R^A(x)=F_2^A(x)/F_2^D(x)$, these effects show the following behavior: $R^A(x)<1$ for $x<0.07$ (shadowing effect) $R^A(x)>1$ for $0.1<x<0.3$ (anti-shadowing effect) $R^A(x)<1$ for $0.3<x<0.8$ (EMC effect) $R^A(x)>1$ for \$0.8

### Primary author

Dr Masanori Hirai (Tokyo University of Science)

### Presentation materials

 sk-barcelona-09-05-npdf.pdf sk-barcelona-09-05-npdf.ppt