Во ВТОРНИК 26
января 2016 года в 16.00 в комнате 320 (бывшая 324) корпуса высоких
энергий НИИЯФ МГУ состоится внеочередное заседание семинара ОЭФВЭ
(научный руководитель д.ф.-м.н., профессор Э.Э.Боос).
Докладчик: Professor Bruce Mellado (University of the Witwatersrand)
Тема: ''The compatibility of the LHC data with a scalar with a mass around 270 GeV and its possible connection to the X(750) excess''
The first run of the LHC saw the discovery of a Higgs boson, a particle that is consistent with
the SM hypothesis. The field has been re-energized by an excess in the
di-photon spectrum around 750 GeV reported by the ATLAS and CMS
collaborations. In addition, there are a number of excesses in Run 1
ATLAS and CMS results, which can be interpreted as
being due to the existence of heavy scalar particle. Using a
minimalistic model, we can predict the kinematics of these final states
and compare the prediction against data directly. A statistical
combination of these results shows that a best fit point is
found for a heavy scalar having a mass of 272+12-9 GeV.
This result
has been quantified as a three-sigma effect. The possibility of
embedding these excesses, into a 2HDM, with H(270) and A(750), and the
phenomenological implications are discussed.
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