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Theoretical and Experimental Constraints in the -- Four-Lepton Sector of the SMEFT: implications to neutrino self interactions
Aadarsh Singh, G. D'Ambrosio, Sudhir K. Vempati
We study the dimension-six SMEFT four-lepton operators in the -- sector. These operators control both charged-lepton scattering and neutrino self-interactions, the latter bei…
CP violation in with and without time dependence through a tagged analysis
Giancarlo D'Ambrosio, Avital Dery, Yuval Grossman +4
We point out that using current knowledge of and , one can extract short-distance information from the combined measurement of th…
Kaon Physics: A Cornerstone for Future Discoveries
Jason Aebischer, Atakan Tugberk Akmete, Riccardo Aliberti +153
The kaon physics programme, long heralded as a cutting-edge frontier by the European Strategy for Particle Physics, continues to stand at the intersection of discovery and innovati…
Leptogenesis in the minimal supersymmetric triplet seesaw model
G. D'Ambrosio, T. Hambye, A. Hektor +2
In the supersymmetric triplet (type-II) seesaw model, in which a single SU(2)_L-triplet couples to leptons, the high-energy neutrino flavour structure can be directly determined fr…
Minimal Flavour Violation: an effective field theory approach
G. D'Ambrosio, G. F. Giudice, G. Isidori +1
We present a general analysis of extensions of the Standard Model which satisfy the criterion of Minimal Flavour Violation (MFV). We define this general framework by constructing a…
eta -> pi^+ pi^- pi^0 gamma in Chiral Perturbation Theory
G. D'Ambrosio, G. Ecker, G. Isidori +1
We analyse the radiative decay in the low--energy expansion of the Standard Model. We employ the notion of ``generalized bremsstrahlung'' to take full advantage…
Can we extract short-distance information from B(K_L -> mu^+ mu^-)?
G. D'Ambrosio, G. Isidori, J. Portoles
A new analysis of the long-distance two-photon dispersive amplitude of K_L -> mu^+ mu^- is presented. We introduce a phenomenological parameterization of the K_L -> gamma^* gamma^*…
K -> pi pi pi gamma in chiral perturbation theory
G. D'Ambrosio, G. Ecker, G. Isidori +1
We present a complete analysis of K -> 3 pi gamma decays to O(p^4) in the low-energy expansion of the Standard Model. We employ the notion of "generalized bremsstrahlung" to take f…
CP violation in kaon decays
G. D'Ambrosio, G. Isidori
We review the Standard Model predictions of CP violation in kaon decays. We present an elementary introduction to Chiral Perturbation Theory, four--quark effective hamiltonians and…
Radiative Four--Meson Amplitudes in Chiral Perturbation Theory
G. D'Ambrosio, G. Ecker, G. Isidori +1
We present a general discussion of radiative four--meson processes to in chiral perturbation theory. We propose a definition of ``generalized bremsstrahlung'' that takes f…