Higgs & Top at LHeC

Monday 12 Sept 2016, 11:00 → 13:00 Europe/Zurich

CERN

CERN - Tokyo - Liverpool - Johannesburg - Beijing - Hamburg

Satoshi Kawaguchi reported updates on H to invisible search.
He added php W production background MC and retuned the cuts.
2sigma sensitivity of 5.97% was achieved.  Using MVA, it was 5.44%.
Chen commented that charge of the electron can be used to reject
wrong-sign process.
He also asked about polarization effect on php bg.  Uta commented that
MVA could be further trained to get better than 2sigma sensitivity.
Chen commented that different jet algorithm (than kt) and R parameter
could be tried for jet veto.

Chen introduced the contents from his recent paper arXiv:1608.08458.
The target decay is Higgs to hidden particle (phi) pair, which in turn
decay to b-pair
(in total 4 b-jets and forward jet), with phi mass between 20 and 60 GeV.
Also direct php background is considered.  LHeC can do much better than HL-LHC.
Uta commented that one could consider lowering the jet pt threshold (now 20GeV).
It would be also nice to make the model file available for the group
(and others).

11:00 → 11:10 Update on invisible decay study

Speaker: Satoshi Kawaguchi (Tokyo Institute of Technology (JP))

September_12th.pdf

11:10 → 11:20 Hbb coupling measurement

Speaker: Masahiro Tanaka (Tokyo Institute of Technology (JP))

11:20 → 11:30 Hbb and Hcc using jet lifetime probabilities

Speaker: Uta Klein (University of Liverpool (GB))

11:30 → 11:40 H to phiphi to 4b

Speaker: Mr Chen Zhang (Peking University)

ChenZhang_LHeC_h24b_20160912.pdf

11:40 → 11:50 Single top analysis

Speaker: Xifeng Ruan (University of the Witwatersrand (ZA))

11:50 → 12:00 Status of Wits Studies

Speaker: Mukesh Kumar (University of the Witwatersrand (ZA))

12:00 → 12:10 FCNC top-Higgs couplings

Speaker: hao sun (DaLian University of Technology)

12:10 → 12:20 Probing Top Quark FCNC in gamma p Collisions

Speaker: Orhan Cakir (University of Ankara (TR))