The CYGNO project aims at the development of a high precision optical readout gaseous Tima Projection Chamber (TPC) for directional dark matter (DM) searches, to be hosted at Laboratori Nazionali del Gran Sasso (LNGS). CYGNO employs a He:CF$_4$ gas mixture at atmospheric pressure with a Gas Electron Multiplier (GEM) based amplification structure coupled to an optical readout comprised of sCMOS cameras and photo...
Made available in DSpace on 2022-04-29T12:17:07Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-12-23; Searches are presented for heavy scalar (H) and pseudoscalar (A) Higgs bosons posited in the two doublet model (2HDM) extensions of the standard model (SM). These searches are based on a data sample of pp collisions collected with the CMS experiment at the LHC at a center-of-mass energy of s=8TeV and co...
Made available in DSpace on 2022-04-29T12:27:50Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-01-20; A search is performed for long-lived massive neutral particles decaying to quark-antiquark pairs. The experimental signature is a distinctive topology of a pair of jets, originating at a secondary vertex. Events were collected with the CMS detector at the CERN LHC in proton-proton collisions at a center...
Made available in DSpace on 2022-04-29T12:38:29Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-02-02; A study of vector boson scattering in pp collisions at a center-of-mass energy of 8 TeV is presented. The data sample corresponds to an integrated luminosity of 19.4fb-1 collected with the CMS detector. Candidate events are selected with exactly two leptons of the same charge, two jets with large rapidi...
Made available in DSpace on 2022-04-29T13:00:54Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-02-13; A search for new long-lived particles decaying to leptons is presented using proton-proton collisions produced by the LHC at s=8TeV. Data used for the analysis were collected by the CMS detector and correspond to an integrated luminosity of 19.7fb-1. Events are selected with an electron and muon with op...
Made available in DSpace on 2022-04-29T14:10:10Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-11-21; Searches for supersymmetry (SUSY) are presented based on the electroweak pair production of neutralinos and charginos, leading to decay channels with Higgs, Z, and W bosons and undetected lightest SUSY particles (LSPs). The data sample corresponds to an integrated luminosity of about 19.5fb-1 of proton-...
Made available in DSpace on 2022-04-29T14:31:48Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-03-23; An inclusive search for supersymmetry in events with at least one b-tagged jet is performed using proton-proton collision data collected by the CMS experiment in 2012 at a center-of-mass energy of 8 TeV. The data set size corresponds to an integrated luminosity of 19.3fb-1. The two-dimensional distribut...
Made available in DSpace on 2022-04-29T14:42:24Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-03-18; A search is performed for long-lived particles that decay into final states that include a pair of electrons or a pair of muons. The experimental signature is a distinctive topology consisting of a pair of charged leptons originating from a displaced secondary vertex. Events corresponding to an integrat...
Made available in DSpace on 2022-04-29T14:52:59Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-03-12; A search for resonances and quantum black holes is performed using the dijet mass spectra measured in proton-proton collisions at s=8TeV with the CMS detector at the LHC. The data set corresponds to an integrated luminosity of 19.7fb-1. In a search for narrow resonances that couple to quark-quark, quark...
Made available in DSpace on 2022-04-29T15:03:59Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-05-14; The double-differential cross sections of promptly produced J/ψ and ψ(2S) mesons are measured in pp collisions at s=7TeV, as a function of transverse momentum pT and absolute rapidity |y|. The analysis uses J/ψ and ψ(2S) dimuon samples collected by the CMS experiment, corresponding to integrated luminos...