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SUMMARY:Probing anomalous ZZγ and Zγγ couplings at the e^+e^- colliders
  using the optimal observable technique
DTSTART;VALUE=DATE-TIME:20230915T124500Z
DTEND;VALUE=DATE-TIME:20230915T130000Z
DTSTAMP;VALUE=DATE-TIME:20260927T063325Z
UID:indico-contribution-15@cern.ch
DESCRIPTION:Speakers: Mr. JAHEDI\, Sahabub (Indian Institute of Technology
 \, Guwahati)\nWe study the anomalous ZZγ and Zγγ couplings that can be 
 probed via\nZγ production at the e^+ e^− colliders. We take Standard Mo
 del Effective Field Theory (SMEFT) approach to examine these anomalous neu
 tral triple gauge couplings in a model-independent way. There are four ind
 ependent dimension-8 operators that generate these gauge interactions\, on
 e of them is CP-conserving and rest three are CP-violating. We adopt optim
 al observable technique to extract the sensitivity at which these anomalou
 s\ncouplings can be probed at future e^+ e^− colliders and then compare 
 the results with the latest experimental limit obtained at the LHC. We als
 o study the impact and advantage of beam polarization in these precision m
 easurements. Statistical limit (95% C.L.) on individual anomalous coupling
 s as well as the correlation between various couplings have\nbeen discusse
 d in detail.\n\nhttp://indico.fuw.edu.pl/contributionDisplay.py?contribId=
 15&sessionId=22&confId=66
LOCATION:University of Warsaw\, Faculty of Physics 1.01
URL:http://indico.fuw.edu.pl/contributionDisplay.py?contribId=15&sessionId
 =22&confId=66
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