Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Charges from Dressed Matter: Physics and Renormalisation   Gauge theories are characterised by long range interactions. Neglecting these
interactions at large times, and identifying the Lagrangian matter fields with
the asymptotic physical fields, leads to the infra-red problem. In this paper
we study the perturbative applications of a construction of physical charges in
QED, where the matter fields are combined with the associated electromagnetic
clouds. This has been formally shown, in a companion paper, to include these
asymptotic interactions. It is explicitly demonstrated that the on-shell
Green's functions and S-matrix elements describing these charged fields have,
to all orders in the coupling, the pole structure associated with particle
propagation and scattering. We show in detail that the renormalisation
procedure may be carried out straightforwardly. It is shown that standard
infra-red finite predictions of QED are not altered and it is speculated that
the good infra-red properties of our construction may open the way to the
calculation of previously uncalculable properties. Finally extensions of this
approach to QCD are briefly discussed.

10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
37
The categories of this paper are: supr-con
20
The categories of this paper are: acc-phys
8
The categories of this paper are: hep-ex
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th
13
The categories of this paper are: quant-ph
4
The categories of this paper are: cond-mat
32
The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga
26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
16
The categories of this paper are: stat