A template method to measure the tt¯ polarisation

• Autor(es): Aguilar-Saavedra, J.A. ; Fiolhais, M. C. N. ; Martín-Ramiro, P. ; Moreno, J. M. ; Onofre, A.
• Data: 2022
• Identificador Persistente: https://hdl.handle.net/10316/103241
• Origem: Estudo Geral - Universidade de Coimbra
• Tipo de Documento: Artigo científico
• Idioma: Inglês

Descrição

We develop a template method for the measurement of the polarisation of t ¯t pairs produced in hadron collisions. The method would allow to extract the individual fractions of tL ¯tL , tR ¯tR, tL ¯tR and tR ¯tL 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, aswell as their spin correlation for arbitrary axes.