A template method to measure the tt¯ polarisation

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 t L t ¯ L , t R t ¯ R , t L t ¯ R and t R t ¯ L pairs with a fit to data, where L ,  R refer to the polarisation along any...

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Bibliographic Details
Published inThe European physical journal. C, Particles and fields Vol. 82; no. 2
Main Authors Aguilar-Saavedra, J. A., Fiolhais, M. C. N., Martín-Ramiro, P., Moreno, J. M., Onofre, A.
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.02.2022
Springer Nature B.V
Subjects
Astronomy
Astrophysics and Cosmology
Elementary Particles
Feasibility studies
Hadrons
Heavy Ions
Measurement Science and Instrumentation
Monte Carlo simulation
Nuclear Energy
Nuclear Physics
Physics
Physics and Astronomy
Polarization
Quantum Field Theories
Quantum Field Theory
Quarks
Regular Article - Theoretical Physics
Sensors
String Theory
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Summary: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 t L t ¯ L , t R t ¯ R , t L t ¯ R and t R t ¯ 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.
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s10052-022-10063-z