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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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CERN-LHC, ATLAS HEP data for the Search for resonant W Z Production in the fully leptonic final state in Proton-Proton Collisions at sqrt(s) = 13 TeV with the ATLAS Detector.
Results from a search for supersymmetry in events with four or more charged leptons (electrons, muons and taus) are presented.
CERN-LHC, ATLAS. Limits on pair production of a heavy vector-like B quark together with its antiparticle, where the B quark decays to a W boson and a top quark. The search is based on 36.1 +\- 0.8 fb^{-1} of pp collisions at sqrt{s} = 13 TeV recorded in 2015 and 2016 with the ATLAS detector at the CERN Large Hadron Collider. Data are analysed in the lepton plus jets final state, including at least four small jets out of which at least one is required to be b-tagged jet and a large-radius jet. Mass limits on B production are set as a function of the decay branching ratios.
A measurement of total production cross sections of the Higgs boson in proton-proton collisions is presented in the H -> tau tau decay channel. The analysis is performed using 36.1 fb-1 of data recorded by the ATLAS experiment at the Large Hadron Collider at a center-of-mass energy of 13 TeV. All combinations of leptonic and hadronic tau decays are considered. The H->tau tau signal over the expected background from other Standard Model processes is established with an observed (expected) significance of 4.4 (4.1) standard deviations. Combined with results using data taken at 7 and 8 TeV centre-of-mass energies, the observed (expected) significance amounts to 6.4 (5.4) standard deviations and constitutes an observation of H->tautau decays by the ATLAS experiment.
CERN-LHC-ATLAS. Measurements of the inclusive and differential fiducial cross-sections for ttbar+photon production using leptonic channels in proton-proton collisions at a centre-of-mass energy of 13 TeV with 36.1 fb^-1 of data collected in 2015 and 2016.
CERN-LHC. A search for a heavy charged-boson resonance decaying into a charged lepton (electron or muon) and a neutrino is reported.
CERN-LHC. Measurements of the absolute and fiducial differential cross-sections for single leptons and the dilepton system in ttbar production at sqrt(s)=13 TeV, decaying to the e-mu bbbar nnubar final state.
In order to obtain the mass of \boldsymbol{\tau} 𝛕 lepton at BESIII precisely, a beam energy measurement system was built at BEPCII. A scenario for high precision \boldsymbol{\tau} 𝛕 mass measurement was put forth before data taken. More than 130 \boldsymbol{pb^{-1}} 𝐩 𝐛 − 1 \boldsymbol{\tau} 𝛕 mass scan data were collected in April 2018, and the uncertainty of \boldsymbol{m_{\tau}} 𝐦 𝛕 is expected to be less than 100 keV.
The topic of this thesis is the measurement of W and Z bosons associate production in the lepton plus neutrino plus Heavy Flavor (HF) quarks nal state: p $\bar{p}$→ WW/WZ→ ℓv+ HF;
In this thesis we present a search for the WZ and ZZ production in a final state ("W+2 jets") with a leptonically-decaying W and two energetic jets. We use the full dataset ( ∫ Ldt = 8:9 fb -1 ) recorded with the CDF detector at Fermilab. The challenge consists in extracting the small Z-hadronic peak from the large amount of background processes. Those processes also include the WW, whose hadronic peak cannot be distinguished from the Z peak, due to the poor calorimeter resolution. In the past such a signature was used to measure the diboson cross section, which is highly dominated by the WW cross section.
Searches for SM Higgs boson production in the leptons plus jets final states with a data set corresponding to 9.7 fb -1 of $\bar{p}$p collisions at √s = 1.96TeV collected by the DØ Experiment are presented in this thesis. The searches are carried out in two independent analyses, accounting for different signal topologies.
We present the results of the CDF search for a Standard Model Higgs boson decaying into a pair of W bosons with electrons, muons and hadronically decaying taus in the final state. In particular, we investigate a channel with three objects, two leptons and a tau. In 9.7 fb -1 of data we expect 40.0 ± 5.4 background events and 0.54 ± 0.05 signal events for a Higgs mass hypothesis of 160 GeV/c 2 , whereas in data we count 28 events. We set a 95% C.L. upper limit on σ/σSM of 12.6 for a Higgs mass hypothesis of 160 GeV/c 2 . The expected 95% C.L. upper limit for the same mass is 12.4. Results for other ninete 0 GeV/c2 to 200 GeV/c 2 are also presented.
A two-day workshop, "The Tau-Charm Factory in the Era of B-factors and CESR," was held at SLAC in August, 1994. This paper summarizes the important research on the tau lepton which could be done at a tau-charm factory in the next decade. It is based on the presentation by the speakers and on the discussions by participants, as well as on published papers.
Charged-lepton avour-violating (cLFV) processes offer deep probes for new physics with discovery sensitivity to a broad array of new physics models | SUSY, Higgs Doublets, Extra Dimensions, and, particularly, models explaining the neutrino mass hierarchy and the matterantimatter asymmetry of the universe via leptogenesis. The most sensitive probes of cLFV utilize high-intensity muon beams to search for $\mu \to e$ transitions. We summarize the status of muon-cLFV experiments currently under construction at PSI, Fermilab, and J-PARC. These experiments offer sensitivity to effective new physics mass scales approaching $O (10^4)$ $TeV=c^2$. Further improvements are possible and next-generation experiments, using upgraded accelerator facilities at PSI, Fermilab, and J-PARC, could begin data taking within the next decade. In the case of discoveries at the LHC, they could distinguish among alternative models; even in the absence of direct discoveries, they could establish new physics. These experiments both complement and extend the searches at the LHC.
The search for Charged Lepton Flavor Violation as part of the Mu2e experiment is described.
The Mu2e experiment at Fermilab is described. Areas covered include: Charged Lepton Flavor Violation (CLFV); CLFV measurements; Muon to electron conversion search on Mu2e; The experimental apparatus; Current status; and, Next plan -- Mu2e II.
The Charged Lepton Flavor Violation (CLFV) activity at Fermilab is described.
Progress is described on the search for Charged Lepton Flavor Violation as part of the Mu2e Experiment at Fermilab.