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SUMMARY:Study of neutral triple gauge couplings sensitivity to new physics
  manifestations using augmented vertex function approach with $Z(\\nu\\bar
 {\\nu})\\gamma$ production
DTSTART;VALUE=DATE-TIME:20241025T064500Z
DTEND;VALUE=DATE-TIME:20241025T070000Z
DTSTAMP;VALUE=DATE-TIME:20260314T050211Z
UID:indico-contribution-4363@cern.ch
DESCRIPTION:Speakers: Alena Chekhonina (NRNU MEPhI)\nThe most successful t
 heory describing elementary particles\, Standard Model (SM)\, can not expl
 ain some already observed phenomena\, so it needs an extension. Any new ob
 served manifestation of the new physics phenomenon brings the construction
  of a more general theory closer\, since it provides new necessary informa
 tion. The study reported in this talk contains an indirect model-independe
 nt way\, vertex function approach\, which is used for searching more physi
 cs phenomena beyond the SM. This approach allows one to parameterize neutr
 al triple gauge couplings (nTGC) which are prohibited in the SM. The $Z(\\
 nu\\bar{\\nu})\\gamma$ production in pp collisions is used to study nTGC. 
 Expected one-dimension limits on 12 vertex parameters are set under the co
 nditions of Run II and Run III of the ATLAS experiment (LHC). Four aforeme
 ntioned parameters have not been studied at the LHC experiments before. Tw
 o-dimensional correlation contours are also studied in this work. This ana
 lysis shows that in future the most strict limits may be set by using the 
 $Z(\\nu\\bar{\\nu})\\gamma$ production. Moreover\, the problem of unitarit
 y violation is also considered in the work. Unitarity bounds have been cal
 culated for several coefficients\, and all the limits are found to be unit
 arized.\n\nhttps://indico.particle.mephi.ru/event/436/contributions/4363/
LOCATION: Petrovskiy 2
URL:https://indico.particle.mephi.ru/event/436/contributions/4363/
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