Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Comment on "The New F_L Measurement from HERA and the Dipole Model"   The upper bound on the ratio of the proton structure functions $F_L/F_2$
tested in the recent paper "The New $F_L$ Measurement from HERA and the Dipole
Model", contrary to what is said therein, does not provide a model-independent
"rigorous" experimental test of the color-dipole picture. The validity of the
theoretical upper bound depends on an ad hoc assumption on the dipole cross
section. -- The analysis in the paper "The New $F_L$ Measurement from HERA and
the Dipole Model" can be reinterpreted as an additional confirmation of the
absolute model-independent prediction from the color-dipole picture of $F_L =
0.27 F_2$.

22
The categories of this paper are: chao-dyn
26
The categories of this paper are: bayes-an
29
The categories of this paper are: funct-an
32
The categories of this paper are: atom-ph
37
The categories of this paper are: supr-con
33
The categories of this paper are: plasm-ph
18
The categories of this paper are: econ
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
36
The categories of this paper are: cmp-lg
3
The categories of this paper are: physics
23
The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
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The categories of this paper are: eess
13
The categories of this paper are: quant-ph