BEGIN:VCALENDAR
VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:1
UID:UW-Physics-Event-8484
DTSTART:20231109T190000Z
DTEND:20231109T200000Z
DTSTAMP:20260414T005751Z
LAST-MODIFIED:20231027T134804Z
LOCATION:5310 CH
SUMMARY:Measurement of the ttH and tH Production Rates in theH to bb D
 ecay Channel at CMS\, NPAC (Nuclear/Particle/Astro/Cosmo) Forum\, Abhi
 sek Datta\, UCLA
DESCRIPTION:Associated production of the Higgs boson with a top quark-
 antiquark pair (𝑡𝑡̅𝐻) provides the best direct probe of the 
 top-Higgs Yukawa coupling at tree-level. Measurement of this coupling 
 is important not only to confirm the predictions made by the Standard 
 Model but also to search for indications of new physics. In this talk\
 , I will present an analysis of 𝑡𝑡̅𝐻 production with the Hig
 gs boson decaying to a 𝑏𝑏̅ pair which has the largest branching
  fraction. Latest results obtained using pp collision data at the CERN
  LHC recorded by the CMS experiment at √𝑠 = 13 TeV between 2016 a
 nd 2018 corresponding to an integrated luminosity of 138 𝑓𝑏−1 
 will be shown. One particularly challenging background limiting the pr
 ecision of this measurement arises from direct 𝑡𝑡̅+𝑏𝑏̅ p
 roduction. Measurements of both the overall 𝑡𝑡̅𝐻 production 
 rate and in intervals of Higgs boson transverse momentum are performed
 . Limits are also set on the production rate of a Higgs boson with a s
 ingle top quark (𝑡𝐻) and on the strength and structure of the to
 p-Higgs coupling from simultaneous measurements of 𝑡𝑡̅𝐻 and 
 𝑡𝐻 production rates. In order to improve the precision of these 
 measurements in the future\, the LHC in the High Luminosity era will b
 e upgraded to deliver instantaneous luminosities much higher than the 
 original design value. ME0 is a new muon sub-detector (using Gas Elect
 ron Multiplier technology) that will be added in the far-forward regio
 n (2.0<|𝜂|<2.8) of CMS as part of the Phase-2 Upgrade. I will discu
 ss the development of the readout electronics for the ME0 detector\, w
 hich must be designed to deal with high data rates and be sufficiently
  radiation hard to operate so close to the beamline.<br>
\n
URL:https://www.physics.wisc.edu/events/?id=8484
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