Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Finite-volume effects in long-distance processes with massless leptonic
  propagators   In Ref. [1], a method was proposed to calculate QED corrections to hadronic
self energies from lattice QCD without power-law finite-volume errors. In this
paper, we extend the method to processes which occur at second-order in the
weak interaction and in which there is a massless (or almost massless) leptonic
propagator. We demonstrate that, in spite of the presence of the propagator of
an almost massless electron, such an infinite-volume reconstruction procedure
can be used to obtain the amplitude for the rare kaon decay
$K^+\to\pi^+\nu\bar\nu$ from a lattice quantum chromodynamics computation with
only exponentially small finite-volume corrections.

30
The categories of this paper are: q-alg
20
The categories of this paper are: acc-phys
3
The categories of this paper are: physics
31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
25
The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an
23
The categories of this paper are: solv-int
37
The categories of this paper are: supr-con
33
The categories of this paper are: plasm-ph
27
The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin
5
The categories of this paper are: gr-qc
19
The categories of this paper are: eess
32
The categories of this paper are: atom-ph