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Higgs & Top at LHeC
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CERN - Tokyo - Liverpool - Johannesburg - Beijing - Hamburg
Satoshi, changed the significance definition from S/sqrt(B) to
S/sqrt(S+2B) according to
suggestion. The 2-sigma sensitivity changed from 5.92% to 8.05%.
He is now generating MC for Ep=14TeV and 50TeV.
Uta said there may be a master student to work on H to phiphi to 4b channel.
Chen is trying to use Sherpa instead of Pythia. Uta commented there may be
scale problem in Sherpa, and advised to contact Stefan Hoeche.
George said it should be possible to change scale definition in Sherpa.
George asked if there is interest in Heavy Higgs search.
Uta said LHeC may not be very competitive with LHC.
Hao Sun is generating FCNC events using Pythia and Delphes.
He needs sample analysis codes - Satoshi could help.
He is using the original Pyrhia so should check the 'LHeC' vesion
everyone is using.
Ilkay presented a study on top FCNC (t q gamma):
* calculation of signal cross section for process e-p—>(e-t + e-t~)
* contour plot with variation of lambda_u and lambda_c as free parameters and
assumption lambda_L=lambda_R, take all other couplings vanish
* coupling range estimation at LHeC and FCC-ep energies, as well as
estimation contour plot of lambda_u and lambda_c in
the range of [-0.1:0.1].
For next meeting a plan is given to proceed for simulation and analysis:
* use Delphes with LHeC/FCC detector card
* for analysis, cut based, reconstruction of top quark mass
and W boson mass. Estimate sensitivity to tugamma and tcgamma at LHeC
and FCC-ep.
Kechecn is interested in BSM physics and has contacted George.
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