A template method to measure the t(t)over-bar polarisation

We develop a template method for the measurement of the polarisation of t (t) over bar pairs produced in hadron collisions. The method would allow to extract the individual fractions of t(L)(t) over bar (L), t(R)(t) over bar (R), t(L)(t) over bar (R) and t(R)(t) over bar (L) pairs with a fit to data, where L, R refer to the polarisation along any axis. These polarisation fractions have not been independently measured at present. Secondarily, the method also provides the net polarisation of t and (t) over bar, as well as their spin correlation for arbitrary axes.

Automated summary

We have developed a template method for measuring the polarization of t(t)over bar pairs produced in hadron collisions. This method can extract the individual fractions of different polarization pairs and also provide the net polarization of t and (t)over bar, as well as their spin correlation for arbitrary axes.