Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Pion distribution amplitude from Euclidean correlation functions   Following the proposal in [1], we study the feasibility to calculate the pion
distribution amplitude (DA) from suitably chosen Euclidean correlation
functions at large momentum. In our lattice study we employ the novel momentum
smearing technique [2,3]. This approach is complementary to the calculations of
the lowest moments of the DA using the Wilson operator product expansion and
avoids mixing with lower dimensional local operators on the lattice. The
theoretical status of this method is similar to that of quasi-distributions
[4], which has recently been applied to the same problem in [5]. The
similarities and differences between these two techniques are highlighted.

33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
5
The categories of this paper are: gr-qc
4
The categories of this paper are: cond-mat
32
The categories of this paper are: atom-ph
25
The categories of this paper are: patt-sol
34
The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an
18
The categories of this paper are: econ
16
The categories of this paper are: stat
14
The categories of this paper are: math-ph
3
The categories of this paper are: physics
13
The categories of this paper are: quant-ph
27
The categories of this paper are: comp-gas
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom