Conveners
Session 14
- Pietro Colangelo (Istituto Nazionale di Fisica Nucleare)
Experiments using positron beams impinging on fixed targets offer unique capabilities for probing new light dark particles feebly coupled to e^+ e^- pairs, that can be resonantly produced from positron annihilation on target atomic electrons. In this talk, I will discuss the impact of correctly accounting for the momentum distribution of the atomic electrons that shifts the center of mass...
ATLAS has used the W and Z boson production processes to perform a range of precision measurements providing important tests of perturbative QCD and information about the parton distribution functions for quarks within the proton. This talk will present recent differential Z+heavy flavour jets results, measurements of the Drell-Yan cross section as a function of transverse momentum based on...
The top quark mass is a fundamental parameter of the Standard Model, playing a crucial role in the electroweak precision tests and in any statement regarding the stability of the Universe. I discuss a recent top mass determination [see JHEP 06 (2023) 019, 2209.00583], based on a leptonic invariant mass, taking particular care about theoretical (Monte Carlo) uncertainties.
