29,154 research outputs found
Exploring the Anomalous Top-Higgs FCNC Couplings at the electron proton colliders
We perform an updated analysis on the searches for the anomalous FCNC Yukawa
interactions between the top quark, the Higgs boson, and either an up or charm
quark (). We probe the observability of the FCNC top-Higgs
couplings through the processes (signal.I) and (singal.II) at the
proposed electron proton (ep) colliders, where the Higgs boson decays to a pair. We find that at the high luminosity (1 ) ep
colliders where the electrons have a polarisation of and electron
energy is typical 60 GeV, the 2 upper limit on are
() at the 7TeV@LHeC(50TeV@FCC-eh) for
signal.I and () for signal.II. We also
give an estimate on how the sensitivity (take signal.I as examples) would
change when we reduce the electron beam energy from 60 GeV to 50 GeV or even 40
GeV due to the cost reason. The conclusion is that the discovery potential
reduce () if the electron beam change from 60GeV to 50(40) GeV
at the 7TeV LHeC, and () at the 50 TeV FCC-eh.Comment: 8 figures. 4 tables. 26 page
The Impact of Road Configuration on V2V-based Cooperative Localization
Cooperative localization with map matching has been shown to reduce Global
Navigation Satellite System (GNSS) localization error from several meters to
sub-meter level by fusing the GNSS measurements of four vehicles in our
previous work. While further error reduction is expected to be achievable by
increasing the number of vehicles, the quantitative relationship between the
estimation error and the number of connected vehicles has neither been
systematically investigated nor analytically proved. In this work, a
theoretical study is presented that analytically proves the correlation between
the localization error and the number of connected vehicles in two cases of
practical interest. More specifically, it is shown that, under the assumption
of small non-common error, the expected square error of the GNSS common error
correction is inversely proportional to the number of vehicles, if the road
directions obey a uniform distribution, or inversely proportional to logarithm
of the number of vehicles, if the road directions obey a Bernoulli
distribution. Numerical simulations are conducted to justify these analytic
results. Moreover, the simulation results show that the aforementioned error
decrement rates hold even when the assumption of small non-common error is
violated
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