Marta Felcini

Flavor physics of leptons and dipole moments

This chapter of the report of the “Flavor in the era of the LHC” Workshop discusses the theoretical, phenomenological and experimental issues related to flavor phenomena in the charged lepton sector and in flavor conserving CP-violating processes. We review the current experimental limits and the main theoretical models for the flavor structure of fundamental particles. We analyze the phenomenological consequences of the available data, setting constraints on explicit models beyond the standard model, presenting benchmarks for the discovery potential of forthcoming measurements both at the LHC and at low energy, and exploring options for possible future experiments.

Test beam results for an upgraded forward tagger of the L3 experiment at LEP II

We have tested new scintillator modules with silicon photodiode readout for the upgraded Active Lead Rings (ALR) of the L3 detector at LEP II. Results are presented from data recorded in muon and electron test beams with particular emphasis on the light production and collection as a function of the particle impact position on the scintillator modules. The results from the beam test data will be used for the design of the readout and trigger electronics in conjunction with the required ALR performance as an electron tagger and beam background monitor at LEP II.

Higgs boson production via vectorlike top-partner decays: Diphoton or multilepton plus multijets channels at the LHC

We first build a minimal model of vector-like quarks where the dominant Higgs boson production process at LHC -- the gluon fusion -- can be significantly suppressed, being motivated by the recent stringent constraints from the search for direct Higgs production over a wide Higgs mass range. Within this model, compatible with the present experimental constraints on direct Higgs searches, we demonstrate that the Higgs (

Searches for New Physics

h

Measurement of the Inclusive Jet Cross Section in pp Collisions at √s= 7 TeV

) production via a heavy vector-like top-partner (

The trigger system of the CMS experiment

t_2

Study of Z Boson Production in PbPb Collisions at √sNN=2.76 TeV

) decay,

A TEST OF CP SYMMETRY IN POSITRONIUM

pp \to t_2 \bar t_2

The CMS high level trigger: Commissioning and first operation with LHC beams

,

Searches for Higgs bosons:preliminary combined results using LEP data collected at energies up to 202 GeV

t_2\to t h