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DTSTART:20230326T010000
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DTSTART:20231029T010000
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DTSTART;TZID=Europe/Rome:20231026T143000
DTEND;TZID=Europe/Rome:20231026T163000
DTSTAMP:20260510T013439
CREATED:20231023T103026Z
LAST-MODIFIED:20231102T090159Z
UID:35951-1698330600-1698337800@w3.lnf.infn.it
SUMMARY:Interplay between PDF fits and new physics
DESCRIPTION:The interpretation of LHC data\, and the assessment of possible hints of new physics\, requires the precise knowledge of the proton subnuclear structure in terms of parton distribution functions (PDFs). In this talk\, I present a systematic methodology designed to determine whether and how global PDF fits might inadvertently ‘fit away’ signs of new physics in the high-energy tails of the distributions.I showcase a scenario\, in which the PDFs may completely absorb such signs of new physics\, thus biasing theoretical predictions and their interpretation. I discuss strategies to single out the effects in this scenario and disentangle the inconsistencies that stem from them. Finally\, I will present a new tool that is able to perform simultaneous fits of PDFs and SMEFT Wilson coefficients that might help disentangling the effects highlighted in this talk.    
URL:/event/interplay-between-pdf-fits-and-new-physics/
LOCATION:Aula Salvini
CATEGORIES:Seminari generali
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