Gluon polarization in e+e--->tt¯G
Abstract
We calculate the linear polarization of gluons radiated off top quarks produced in e+e- annihilations. For typical top quark pair production energies at the Next Linear Collider the degree of linear polarization remains close to its soft gluon value of 100% over almost the whole energy spectrum of the gluon. The massive quark results are compared with the corresponding results for the massless quark case.
- Publication:
-
Physical Review D
- Pub Date:
- November 1997
- DOI:
- 10.1103/PhysRevD.56.6031
- arXiv:
- arXiv:hep-ph/9703416
- Bibcode:
- 1997PhRvD..56.6031G
- Keywords:
-
- 14.70.Dj;
- 13.88.+e;
- Gluons;
- Polarization in interactions and scattering;
- High Energy Physics - Phenomenology
- E-Print:
- 9 pages, 2 postscript figures, shortened and revised version