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Stringent constraints on the scalar K pi form factor from analyticity, unitarity and low-energy theorems
Gauhar Abbas, B. Ananthanarayan, I. Caprini +2
We investigate the scalar K pi form factor at low energies by the method of unitarity bounds adapted so as to include information on the phase and modulus along the elastic region…
On the ambiguity of field correlators represented by asymptotic perturbation expansions
Irinel Caprini, Jan Fischer, Ivo Vrkoč
Starting from the divergence pattern of perturbation expansions in Quantum Field Theory and the (assumed) asymptotic character of the series, we address the problem of ambiguity of…
from decays: contour-improved versus fixed-order summation in a new QCD perturbation expansion
Irinel Caprini, Jan Fischer
We consider the determination of from hadronic decays, by investigating the contour-improved (CI) and the fixed-order (FO) renormalization group summations in the frame o…
Expected Performance of the ATLAS Experiment - Detector, Trigger and Physics
The ATLAS Collaboration, G. Aad, E. Abat +2604
A detailed study is presented of the expected performance of the ATLAS detector. The reconstruction of tracks, leptons, photons, missing energy and jets is investigated, together w…