Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Novel Algorithm for Extracting the Parton Distribution Amplitude from
  the Euclidean Bethe-Salpeter Wave Function   We propose a new numerical method to compute parton distribution
amplitude(PDA) from the Euclidean Bethe-Salpeter wave function. The essential
step is to extract the weight function in the Nakanishi representation of the
Bethe-Salpeter wave function in Euclidean space, which is an ill-posed
inversion problem, via the maximum entropy method(MEM). The Nakanishi weight
function as well as the corresponding light-front PDA can be well determined.
We confirm the previous works on PDA computation therein the different method
has been performed.

8
The categories of this paper are: hep-ex
2
The categories of this paper are: math
3
The categories of this paper are: physics
1
The categories of this paper are: cs
9
The categories of this paper are: nlin
36
The categories of this paper are: cmp-lg
32
The categories of this paper are: atom-ph
5
The categories of this paper are: gr-qc
13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph
10
The categories of this paper are: q-bio
19
The categories of this paper are: eess
34
The categories of this paper are: chem-ph
16
The categories of this paper are: stat
14
The categories of this paper are: math-ph
22
The categories of this paper are: chao-dyn