Top quark spin in ep collision

الأصل · EN

We discuss the degree of spin polarization of single top quarks produced via Wg fusion process in ep collision at TESLA+HERAp and CLIC+LHC energies √s=1.6 and 5.3 TeV. A description on how to combine the cross sections of e⁺b→ tν and e⁺g→ tbν processes is given. e⁺-beam direction is taken to be the favorite top quark spin decomposition axis in its rest frame and it is found to be comparable with the ones in pp collision. It is argued that theoretical simplicity and experimental clearness are the advantage of ep collision.