A template method to measure the tt polarisation Aguilar Saavedra, Juan Antonio Fiolhais, Miguel C. N. Martín Ramiro, P. Moreno, J. M. Onofre, Antonio This work is supported by the Spanish Research Agency (Agencia Estatal de Investigacion) through the grant IFT Centro de Excelencia Severo Ochoa SEV-2016-0597, by the projects PID2019-110058GB-C21, PID2019-110058GB-C22 from MICINN/AEI/ERDF, and by projects CERN/FIS-PAR/0004/2019, CERN/FIS-PAR/0029/2019 from FCT. The work of P.M.R. is supported through the FPI grant BES-2016-076775. The work of M.C.N.F. was supported by the PSC-CUNY Awards 63096-00 51 and 64031-00 52. We develop a template method for the measurement of the polarisation of tt¯ pairs produced in hadron collisions. The method would allow to extract the individual fractions of tLt¯ L, tRt¯ R, tLt¯ R and tRt¯ 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¯ , as well as their spin correlation for arbitrary axes. 2022-03-07T09:13:08Z 2022-03-07T09:13:08Z 2022-02-12 journal article Aguilar-Saavedra, J.A., Fiolhais, M.C.N., Martín-Ramiro, P. et al. A template method to measure the tt¯ polarisation. Eur. Phys. J. C 82, 134 (2022).[ https://doi.org/10.1140/epjc/s10052-022-10063-z] http://hdl.handle.net/10481/73173 10.1140/epjc/s10052-022-10063-z eng http://creativecommons.org/licenses/by/3.0/es/ open access Atribución 3.0 España Springer Science and Business Media Deutschland GmbH