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SUMMARY: Measurement of VH\,H-&gt\;bb processes at low and high transverse
  momenta at ATLAS - Elisabeth Schopf (University of Oxford)
DTSTART:20200623T150000Z
DTEND:20200623T160000Z
UID:TALK142567@talks.cam.ac.uk
CONTACT:William Fawcett
DESCRIPTION:Since the discovery of the Higgs boson in 2012 its Standard Mo
 del like nature continues to being corroborated by observations of many of
  its predicted production and decay channels. However\, the most probable 
 decay of the Higgs boson to a pair of bottom quarks\, which has a branchin
 g ratio of 58%\, has only recently observed. It remained elusive due to it
 s challenging experimental signature. This presentation will focus on the 
 measurement of the Higgs boson decay to a pair of bottom quarks in associa
 ted production with a W or Z boson. The recent results of VH\,H—>bb meas
 urements have been performed with the full LHC run-2 data set collected by
  the ATLAS experiment. Two analyses will be discussed: one probing signatu
 res at low transverse momenta and one probing signatures at high transvers
 e momenta. The former was the main contributor to the observation of H->bb
  decays. It has since been updated with more data and higher precision has
  been achieved to further our understanding of H->bb decays and VH product
 ion. The measurements of H->bb decays where the Higgs bosons were produced
  with high transverse momenta is a novel analysis that extends the probed 
 transverse momentum range by using dedicated reconstruction techniques. Si
 nce certain beyond Standard Model modifications would alter the high trans
 verse momentum tail of the spectrum this analysis reaches further into thi
 s regime of potentially new physics. 
LOCATION:Ryle Seminar Room (Rutherford 930) 
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