Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Coherent Neutrino Scattering   We present a microscopic model for coherent pion production off nuclei
induced by neutrinos. This model is built upon a model for single nucleon
processes that goes beyond the usual Delta dominance by including non resonant
background contributions. We include nuclear medium effects: medium corrections
to Delta$ properties and outgoing pion absortion via an optical potential. This
results in major modifications to cross sections for low energy experiments
when compared with phenomenological models like Rein-Sehgal's.

23
The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph
11
The categories of this paper are: hep-lat
16
The categories of this paper are: stat
28
The categories of this paper are: alg-geom
2
The categories of this paper are: math
30
The categories of this paper are: q-alg
4
The categories of this paper are: cond-mat
21
The categories of this paper are: adap-org
31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
18
The categories of this paper are: econ
19
The categories of this paper are: eess
9
The categories of this paper are: nlin
32
The categories of this paper are: atom-ph
8
The categories of this paper are: hep-ex