Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Comment on E2 Contribution to the 8B ---> p + 7Be Coulomb Dissociation
  Cross Section [K. Langanke and T.D. Shoppa, Phys. Rev. C49(1994)R1771,
  ER(1994)]   The E2 cross section calculated by Langanke and Shoppa for the Riken
experiment on the Coulomb Dissociation of 8B uses E2 nuclear matrix elements
from one specific model. Other nuclear models predict a considerably smaller E2
cross section (by a pproximately a factor of 3 to 4), and Langanke and Shoppa
appear to assume the most optimistic scenario predicting large E2 cross
section. We also note that Barker has already criticised the nuclear model used
by Langanke and Shoppa. A MODEL INDEPENDENT Chi-Square analysis of the Riken
data, suggest the best fit for the current Riken data is obtained with E1
amplitudes only. The upper limit (90% confidence) on the E2 component derived
from our Chi-Square analysis is considerably smaller than used by Langanke and
Shoppa. The MODEL DEPENDENT analysis of Langanke-Shoppa should not be
considered as a correction to the Riken result, as claimed, and their quoted
S17(0) is not substantiated.

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The categories of this paper are: nlin
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The categories of this paper are: quant-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: stat
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The categories of this paper are: econ
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The categories of this paper are: funct-an
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The categories of this paper are: dg-ga
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The categories of this paper are: acc-phys
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The categories of this paper are: chem-ph
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The categories of this paper are: q-alg
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The categories of this paper are: astro-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: cond-mat
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The categories of this paper are: q-fin
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The categories of this paper are: atom-ph
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The categories of this paper are: chao-dyn