[PDF] Top 20 Search for Charged Lepton Flavour Violation at CMS

... independent search channels using the number of leptons, lepton flavour and charge combinations, and other kinematic ...each lepton only ...a flavour- democratic scenario, 95% ... See full document

... decade Charged Lepton Flavour Violation (CLFV) experiments will play a key role in the search for new ...the search for the CLFV de- cay μ + → e + γ ... See full document

... the CMS experiment is to search for the Standard Model Higgs ...same-flavor lepton pairs: leptons are required to be isolated and to come from the same primary ...channel search is sensitive ... See full document

... A search for new physics in final states with an opposite-sign same-flavor lepton pair (dilepton), jets and missing transverse energy (MET) is presented ...We search for evidence of production of a new ... See full document

... R-parity violation, SUSY with gauge mediated SUSY breaking (GMSB), hidden valley models, and ...the CMS detector taking advantage of techniques to measure properties of the ... See full document

... the contribution of misidentified particles is derived from data. The uncertainties in the description of the detector performance, such as lepton energy or momentum resolu- tion, lepton and photon energy ... See full document

... Positive muons are stopped in a thin double cone tar- get and two positrons and one electron in time coinci- dence, with a total energy equal to the muon mass and with a null vectorial sum of all the decay particle mo- ... See full document

... Lepton flavour violation (LFV) research is currently one of the most exciting branches of particle physics due to its high sensitivity to unveil New Physics (NP) ... See full document

... The CMS search is focused on the scalar case, in the final state originating from the semi-leptonic top pair ...isolated lepton, at least three jets of which one must be identified as originating from ... See full document

... Protons are produced from a hydrogen duoplasmatron source and are accel- erated to 50 MeV by a linear accelerator. They are fed into the Proton Synchrotron Booster where they are further accelerated up to 1.4 GeV. From ... See full document

... Since no excess of data is observed, LQ must be heavy or weakly coupled to SM particles if they are realised in Nature. An upper limit at 95% C.L. on the cross-section of LQ pair production is obtained based on ... See full document

... On the high energy side, interesting searches have been performed at LEP in the context of LFV decays of the Z boson [23–26], and further improvements have either been made or are expected from the ATLAS [27] and ... See full document

... Direct stop searches at ATLAS and CMS [4] have so far been unsuccessful and place increasingly stringent bounds on the mass of these particles. Therefore a lot of e ff ort has been put into the identification and ... See full document

... µ ν τ , is se- lected, which means that the signal and the normalisation channels both have the same visible final state: 3 charged tracks from the decay chain D ∗ →D 0 (→Kπ)π, and 1 track identified as a muon. ... See full document

... to search for a local excess of events above the predicted SM background, this analysis is based on the measurement of a ratio of event yields between two t ¯ t final states, which in turn allows for the ... See full document

... left-handed lepton doublet and can decay into a neutrino–quark pair, have a charged lepton decay branching ratio of β = Γ q /(Γ q + Γ ν q ) = ... See full document

... loose PID requirements and the combined p T of the three-track system is required to be greater than 4 GeV / c. All selected tracks are required to have IP χ 2 > 9. The fitted three-track vertex has to be of good ... See full document

... of flavour, ...and lepton masses and ...the charged lepton masses and the large leptonic mixing compared to the mixing in the quark sector sets the main goal for model building in the neutrino ... See full document

... the lepton couplings are the same for each lepton ...the charged weak coupling for charged leptons can be tested by combining the measurements of decay widths with lep- tons in the initial ... See full document

... Lepton flavour violation (LFV) is strongly suppressed in the framework of the Standard Model (SM) of particle ...the charged lepton sector would indicate unambiguously the presence of ... See full document