Jornadas de la Red Española de Futuros Colisionadores

Sesión

20 oct. 2026 12:20

Delegacion del CSIC

Lista de contribución Cronograma

39. Overview of FCCee physics studies

Michele Selvaggi (CERN)

20/10/26 12:20

40. Electroweak precision beyond leading logarithms in the SMEFT

Benjamin Stefanek (IFIC)

20/10/26 12:50

Future electron–positron colliders will probe heavy new physics through precise electroweak measurements. I will present next-to-leading-logarithmic (NLL) predictions for electroweak precision observables in the Standard Model Effective Field Theory, combining one-loop electroweak matching with two-loop renormalization-group evolution. I will focus on interactions involving top quarks, whose...

41. Experimental prospects for quantum decoherence measurements at colliders

Guillermo García Mir (Univ. of Valencia and CSIC (ES))

20/10/26 13:10

Quantum entanglement is one of the defining features of quantum mechanics. In high-energy
colliders, quantum properties are experimentally accessible, the most important example being top
quark pair production at the LHC. This channel lead to the discovery of spin entanglement in 2024
[1-2].
In this work [3], we study how energetic final-state radiation modifies the spin entanglement of...

42. Top-quark pair production sensitivity to heavy new physics at the FCC-ee

Sergio Sanchez Cruz (Universidad de Oviedo)

20/10/26 13:30

We study the sensitivity of top-quark pair production at the FCC-ee to heavy new physics, parametrised
in the Standard Model effective field theory, using discriminants based on matrix elements. The
analysis includes detector reconstruction effects, obtained with a fast simulation of the IDEA detector
concept, and jet flavour tagging. We consider dimension-six operators that modify the...

43. The bottom quark mass at high scale

Juan Ramirez Alfaro (IFIC, CSIC-UV)

20/10/26 13:50

Measurements at electron-positron colliders can probe the scale evolution of quark masses predicted
by the Standard Model in several ways. LEP and SLD extracted mb(mZ) from three jet
rates in Z -> b bbar
decay. A future Z-pole run can improve the precision considerably, while a measurement
of mb at higher scale is possible from e+e- -> b bbar
production at 250 GeV and above. A
very precise...

44. New Physics Reach through Precision at Future Colliders

Luca Mantani

20/10/26 14:10

I will present projections for the sensitivity of near-term electron-positron colliders, FCC-ee, LEP3,
and the Linear Collider Facility, to new physics through precision measurements of Standard
Model interactions. These projections are interpreted within three complementary frameworks of
increasing generality: Higgs coupling modifiers, effective Higgs and electroweak couplings, and
global...