Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Does the W Mass Reconstruction Survive QCD Effects?   In the hadronic decay mode of a pair of W bosons, $\text{e}~+\text{e}~- \to
\text{W}~+ \text{W}~- \to \text{q}_1 \overline{\text{q}}_2 \text{q}_3
\overline{\text{q}}_4$, QCD interference effects can mix up the two colour
singlets $\text{q}_1 \overline{\text{q}}_2$ and $\text{q}_3
\overline{\text{q}}_4$, i.e. produce hadrons that cannot be uniquely assigned
to either of W$~+$ and W$~-$. We show that interference is negligible for
energetic perturbative gluon emission, and develop models to help us to
estimate the non-perturbative effects. The total contribution to the systematic
error on the W mass reconstruction may be as large as 40 MeV.

28
The categories of this paper are: alg-geom
4
The categories of this paper are: cond-mat
37
The categories of this paper are: supr-con
2
The categories of this paper are: math
22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
3
The categories of this paper are: physics
1
The categories of this paper are: cs
35
The categories of this paper are: mtrl-th
15
The categories of this paper are: nucl-ex
33
The categories of this paper are: plasm-ph
5
The categories of this paper are: gr-qc
13
The categories of this paper are: quant-ph
27
The categories of this paper are: comp-gas
32
The categories of this paper are: atom-ph
26
The categories of this paper are: bayes-an