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Ratio measurements at ATLAS: More sensitivity to constrain Parton Distributions

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If you have a question about this talk, please contact Alexander Mitov .

A wealth of proton-proton collision data has been collected at the LHC at five different centre-of-mass energies, providing complementary and additional information on the proton dynamics. Different final states such a W/Z, ttbar and jet production allows to obtain complementary information on the various parton flavours. Ratios between cross sections of different final states measured at different centre-of-mass energies allows to cancel dominant experimental systematics and luminosity uncertainties and improve constraints. Recent results of ratio measurements and other PDF determinations from the ATLAS collaboration are presented.

This talk is part of the Cavendish HEP Seminars series.

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Bateman Room, Gonville & Caius College Centre for Mathematical Sciences, MR12; also see abstract for Zoom link Average on weekdays: 8947.44055944 kWh

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