The spin density matrix of top quark pairs produced in electron-positron annihilation including QCD radiative corrections

Details The spin density matrix of top quark pairs produced in electron-positron annihilation including QCD radiative corrections The spin density matrix of top quark pairs produced in electron-positron annihilation including QCD radiative corrections

1998-06-08

arxiv.org/abs/hep-ph/9806306v1

Phys.Rev. D59 (1999) 014001

Physics

High Energy Physics

High Energy Physics - Phenomenology

26 pages, 13 Postscript figures, uses REVTEX

Scientific paper

10.1103/PhysRevD.59.014001

We calculate the spin density matrix of top quark pairs for the reaction $e^+e^-\to t\bar{t}X$ to order $\alpha_s$. As an application we show next-to-leading order results for a variety of spin observables for the $t\bar{t}$ system. These include the top quark and antiquark polarizations and $t\bar{t}$ spin-spin correlations as a function of the center-of-mass energy and of the top quark scattering angle for arbitrary longitudinal polarization of the electron/positron beam.

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