Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Factorization Theorem Relating Euclidean and Light-Cone Parton
  Distributions   In a large-momentum nucleon state, the matrix element of a gauge-invariant
Euclidean Wilson line operator accessible from lattice QCD can be related to
the standard light-cone parton distribution function through the large-momentum
effective theory (LaMET) expansion. This relation is given by a factorization
theorem with a non-trivial matching coefficient. Using the operator product
expansion we prove the large-momentum factorization of the quasi-parton
distribution function in LaMET, and show that the more recently discussed
Ioffe-time distribution approach also obeys an equivalent factorization
theorem. Explicit results for the coefficients are obtained and compared at
one-loop. Our proof clearly demonstrates that the matching coefficients in the
$\overline{\rm MS}$ scheme depend on the large partonic momentum rather than
the nucleon momentum.

36
The categories of this paper are: cmp-lg
14
The categories of this paper are: math-ph
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
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The categories of this paper are: acc-phys
21
The categories of this paper are: adap-org
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The categories of this paper are: q-alg
16
The categories of this paper are: stat
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The categories of this paper are: atom-ph
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The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol
3
The categories of this paper are: physics
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The categories of this paper are: supr-con
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The categories of this paper are: mtrl-th
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The categories of this paper are: quant-ph
22
The categories of this paper are: chao-dyn