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Seminario Juan Rojo

diciembre 3 @ 2:30 pm - 3:00 pm

Fecha y hora:      Martes 3 de Diciembre, 14h30
Lugar:   Seminario de Física Teórica, 3ª planta Oeste
Conferenciante:  Prof. Juan Rojo (Vrije Universiteit Amsterdam)
Título: Towards a global analysis of the Standard Model Effective Field Theory
Resumen:The Standard Model Effective Field Theory (SMEFT) can be considered as “the new Standard Model”: a systematic, model-independent
parametrisation of the low-energy deformations arising in any UV
complete BSM theory that reduces to the SM. Here I present a novel
framework for carrying out global analyses of the  (SMEFT): SMEFiT.
This approach is based on the Monte Carlo replica method, extensively
deployed in the NNPDF analyses of the proton structure, for deriving a
faithful estimate of the experimental and theoretical uncertainties and
enables one to construct the probability distribution in the space of
the SMEFT degrees of freedom. As a proof of concept of the SMEFiT
methodology, I present an extensive study of the constraints on the
SMEFT provided by top quark production measurements from the LHC.  I
then  present first results of a global fit to top, Higgs, and
electroweak precision observables. I then discuss a complementary
approach to constrain the SMEFT parameter space pace based on Bayesian
inference. Finally I also describe the first steps towards a joint
determination of the SMEFT degrees of freedom and of the proton
structure, an essential ingredient for the interpretation of future LHC
precision measurements.


diciembre 3
2:30 pm - 3:00 pm


Felipe LLanes


Seminario FTI
Avenida Complutense
Madrid, Madrid 28011 España
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