Luigi Cappiello

Corrections to K→πγγ from K→3π

Abstract In the framework of chiral perturbation theory we compute the ΔI = 3 2 contribution to KL → π0γγ. As for the ΔI = 1 2 transition, the result turns out to be unambigously predicted and finite. We discuss also the effects on this decay coming from O(p4) corrections to K → 3π. As a by-product we have also a prediction for the CP conserving amplitude A (KL → π0e+e−).

Standard Model prediction and new physics tests for D0 -> h+h-l+l- (h=\pi,K; l=e,\mu)

A bstractMotivated by the recent evidence for direct CP-violation in D0 → h+h− decays, we provide an exhaustive study of both Cabibbo-favored and Cabibbo-suppressed (singly and doubly)

Antisymmetric tensors in holographic approaches to QCD

{D^0}\to h{{_1^{+}}^1}h_2^{-}{\ell^{+}}{\ell^{-}}

TUNNELING EFFECTS IN A BRANE SYSTEM AND QUANTUM HALL PHYSICS

decays. In particular, we study the Dalitz plot for the long-distance contributions in the

K +→π + π 0 e + e −: a novel short-distance probe

\left( {m_{ll}^2,m_{hh}^2} \right)

On off-shell bosonic string amplitudes

parameter space. We find that near-resonant effects, i.e.,

A BRST lagrangian quantization of reducible gauge theories: Non-abelian p -forms and string field theories

{D^0}\to V\left( {h_1^{+}h_2^{-}} \right){\ell^{+}}{\ell^{-}}

Form-factor in K+ ---> pi+ pi0 gamma: Interference versus direct emission

with V = ρ, K*, ϕ, are sizeable and even dominant (over Bremsstrahlung) for the μ+μ− decay modes, bringing the branching ratios close to the LHCb reach. We also provide a detailed study of the angular asymmetries for such decays and identify signatures for new physics detection. In particular, new physics signals can be neatly isolated in asymmetries involving the semileptonic operator Q10, where for typical new physics scenarios the effects can be as sizeable as

Prescriptions for off-shell bosonic string amplitudes

\mathcal{O}

Consistent anomalies of the induced W gravities

(1%) for the doubly Cabibbo-suppressed modes.