Transverse Polarization of Top Quark Pairs at the Tevatron and the Large Hadron Collider

Details Transverse Polarization of Top Quark Pairs at the Tevatron and the Large Hadron Collider Transverse Polarization of Top Quark Pairs at the Tevatron and the Large Hadron Collider

1995-10-16

arxiv.org/abs/hep-ph/9510300v1

Phys.Lett. B368 (1996) 153-162

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, LaTeX; 8 uuencoded, tar-compressed figures added separately

Scientific paper

10.1016/0370-2693(95)01475-6

We investigate the prospects to observe effects of transverse polarization of top quarks in $pp,p\bar{p}\to t\bar{t}X$. QCD absorptive parts generate a polarization of top quarks and antiquarks transverse to the production plane in the partonic processes $q\bar{q}\to t\bar{t}$ and $gg\to t\bar{t}$, which reaches values of a few percent. These perturbative QCD effects are decreased at the hadronic level. A measurement through momentum correlations among the $t$ and $\bar{t}$ decay products will be difficult both at an upgraded Tevatron and at the LHC.

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