Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Transverse Polarization of Top Quarks Produced at a Photon-Photon
  Collider   At future $\gamma \gamma$ colliders copious production of $t \bar{t}$ pairs
is possible. This would allow a detailed investigation of the interactions
involving the top quark. We propose some orrelations which are sensitive to $t
\bar{t}$ final state interactions and we compute the QCD and standard model
Higgs boson contributions to these correlations. QCD induced transverse
polarization of top quarks is found to be sizeable and measurable at a
high-energy $e^+e^-$ collider with an integrated luminosity of 10 $({\rm
fb})^{-1}$ which is converted into a photon collider by backscattering of laser
photons.

17
The categories of this paper are: q-fin
27
The categories of this paper are: comp-gas
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
21
The categories of this paper are: adap-org
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
7
The categories of this paper are: hep-th
6
The categories of this paper are: astro-ph
2
The categories of this paper are: math
37
The categories of this paper are: supr-con
18
The categories of this paper are: econ
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
16
The categories of this paper are: stat
13
The categories of this paper are: quant-ph