53rd Rencontres de Moriond - EW 2018

Session

Tuesday afternoon: BSM (Susy and exotics (cont))

S6

13 mars 2018, 17:00

136. Flaxion: a minimal extension to solve puzzles in SM

Dr Koichi Hamaguchi (University of Tokyo)

13/03/2018 17:00

Ordinary

We propose a minimal extension of the standard model which includes only one additional complex scalar field, flavon, with flavor-dependent global U(1) symmetry. It not only explains the hierarchical flavor structure in the quark and lepton sector (including neutrino sector), but also solves the strong CP problem by identifying the CP-odd component of the flavon as the QCD axion, which we call...

189. Searches for Higgsinos and related challenges in ATLAS

Alaettin Serhan Mete (University of California, Irvine)

13/03/2018 17:20

Ordinary

Natural models of Supersymmetry (SUSY) typically favor existence of light higgsinos. Models in which the only accessible SUSY particles are charginos and neutralinos that are predominantly higgsinos tend to have low mass splitting between these particles. Such models, commonly referred to as compressed models, lead to final states including low-momentum leptons and disappearing tracks that are...

222. Progress with final states with soft leptons in CMS

Cristina Botta (CERN)

13/03/2018 17:40

Ordinary

184. Low mass diphoton resonances at LHC

Alberto Mariotti (VUB)

13/03/2018 18:00

Ordinary

We derive a new bound on diphoton resonances using inclusive diphoton cross section measurements at the LHC, in the so-far poorly constrained mass range between the Upsilon and the SM Higgs. This bound sets the current best limit on axion-like particles that couple to gluons and photons, for masses between 10 and 65 GeV. We also estimate indicative sensitivities of a dedicated diphoton LHC...

223. Susy searches in the context of R parity violation (RPV) with CMS data

Claudia Seitz (Universitaet Zuerich (CH))

13/03/2018 18:40

Ordinary

155. Squark and gluino searches with R parity violating decays and long-lived particles in ATLAS

Dario Barberis (University and INFN Genova)

13/03/2018 19:00

Ordinary

From strongly produced initial states, SUSY phenomenology offers a rich array of observable signatures. Naturalness arguments suggest decays of gluinos through heavy-flavor quarks. R-parity violation may offer signatures with many leptons or jets, but without or with only low missing transverse momentum. Several supersymmetric models also predict massive long-lived supersymmetric particles...

178. Long Lived Particles and Dark photons at LHCb

Martino Borsato (USC Santiago de Compostela)

13/03/2018 19:20

Ordinary

I will briefly overview the potential of LHCb in direct searches for new particles beyond the SM and comment on the latest results.