A template method to measure the $$t {\bar{t}}$$ t t ¯ polarisation
| Autor: | J. A. Aguilar-Saavedra, M. C. N. Fiolhais, P. Martín-Ramiro, J. M. Moreno, A. Onofre |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
QB460-466
High Energy Physics - Phenomenology High Energy Physics - Phenomenology (hep-ph) Physics and Astronomy (miscellaneous) Mathematics::K-Theory and Homology Nuclear and particle physics. Atomic energy. Radioactivity High Energy Physics::Phenomenology FOS: Physical sciences High Energy Physics::Experiment QC770-798 Astrophysics Engineering (miscellaneous) |
| Zdroj: | European Physical Journal C: Particles and Fields, Vol 82, Iss 2, Pp 1-10 (2022) European Physical Journal Digibug. Repositorio Institucional de la Universidad de Granada instname |
| ISSN: | 1434-6052 1434-6044 |
| Popis: | 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. IFT Centro de Excelencia Severo Ochoa PID2019-110058GB-C21, PID2019-110058GB-C22, SEV-2016-0597 PSC-CUNY 63096-00 51, 64031-00 52 Spanish Research Agency Family Process Institute BES-2016-076775 Ministerio de Ciencia e Innovación European Regional Development Fund CERN/FIS-PAR/0004/2019, CERN/FIS-PAR/0029/2019 Fundació Catalana de Trasplantament Agencia Estatal de Investigación |
| Databáze: | OpenAIRE |
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