Lepton universality tests with leptonic kaon decays

The NA62 experiment at CERN aims to use rare kaon decays to search for new phenomena beyond the Standard Model. During the current short term phase (data taking completed in years 2007-8), the ratio $R_K = \Gamma(K^+ \rightarrow e \nu_e (\gamma)) / \Gamma(K^+ \rightarrow \mu \nu_{\mu} (\gamma))$ of leptonic decay rates is studied, which tests the structure of weak interactions and lepton flavour universality. In this paper, the $R_K$ analysis is summarized, and the preliminary result is discussed, based on 59963 $K^+ \rightarrow e \nu_e$ candidates collected in 2007.Comment: Proceedings of CKM2010, the 6th International Workshop on the CKM Unitarity Triangle, University of Warwick, UK, 6-10 September 201

Trigger, reconstruction and physics performances in LHCb

LHCb is one of the four major experiments that will take data at the LHC, due to start operation in 2007. The primary aims of LHCb are to perform precision tests of CP violation and to search for new physics in b hadron decays. About 10^12 bb pairs will be produced in LHCb per 10^7 seconds (a nominal year) in pp collisions with a luminosity of 2x10^32 cm^-2 s^-1. A large, high-purity sample of b hadrons, decaying in a variety of channels, will be accumulated. LHCb will perform a detailed study of B meson mixing, precise measurements of the angles of the unitary triangle and investigations of rare decays in b hadrons, looking for new physics in loop-induced processes. The LHCb detector is optimised to reach these physics goals. Here a brief description of the reconstruction performance is given, and the sensitivities in typical channels for the study of Bs mixing, CP violation and rare decays are summarised.Comment: Hadron Collider Physics Symposium (HCP06) Duke University Durham, North Carolina; May 22-26, 200

Oltre la Globalizzazione. Conflitti/Conflicts

Il volume raccoglie i contributi presentati alla giornata di studio dal titolo «Oltre la globalizzazione: le proposte della Geografia economica», promossa da alcuni anni dalla Società di Studi Geografici Negli anni si è partiti dal tema della «globalizzazione» per poi esplorare altri temi centrali per gli studi geografici, dalla «prossimità» alla «resilienza», sempre declinati negli ambiti delle imprese, dei mercati, dei sistemi territoriali, delle reti urbane e dell’ambiente. Nel 2014 la Giornata di studi SSG ha proposto come riferimento il tema del conflitto, invitando i ricercatori a confrontarsi sia dal punto di vista metodologico che nella scelta del linguaggio di rappresentazione dei fenomeni