Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Examination of uncertainties in nuclear data for cosmic ray physics with
  the AMS experiment   High-energy Li-Be-B nuclei in cosmic rays are being measured with unprecedent
accuracy by the AMS experiment. These data bring valuable information to the
cosmic ray propagation physics. In particular, combined measurements of B/C and
Be/B ratios may allow to break the parameter degeneracy between the cosmic-ray
diffusion coefficient and the size of the propagation region, which is crucial
for dark matter searches. The parameter determination relies in the calculation
of the Be and B production from collisions of heavier nuclei with the gas.
Using the available cross-section data, I present for the first time an
evaluation of the nuclear uncertainties and their impact in constraining the
propagation models. I found that the AMS experiment can provide tight
constraints on the transport parameters allowing to resolutely break the
degeneracy, while nuclear uncertainties in the models are found to be a major
limiting factor. Once these uncertainties are accounted, the degeneracy remains
poorly resolved. In particular, the Be/B ratio at ~1 - 10 GeV/n is found not to
bring valuable information for the parameter extraction. On the other hand,
precise Be/B data at higher energy may be useful to test the nuclear physics
inputs of the models.

31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
20
The categories of this paper are: acc-phys
29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
21
The categories of this paper are: adap-org
27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
35
The categories of this paper are: mtrl-th
7
The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga
10
The categories of this paper are: q-bio
25
The categories of this paper are: patt-sol