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공공누리This item is licensed Korea Open Government License

Title
Search for new phenomena in events with two $Z$ bosons and missing transverse momentum in $p\bar{p}$ collisions at $\sqrt{s}=1.96$ TeV.
Author(s)
T.Aaltonen노서영배태길조기현
Publication Year
2012-01-26
Abstract
WepresentasearchfornewphenomenaineventswithtworeconstructedZbosonsandlargemissing
transversemomentum,sensitivetoprocessespp!X2X2
!ZZX1X1,whereX2isanunstableparticle
decayingasX2
!ZX1andX1isundetected.TheparticlesX1andX2maybe,amongotherpossibilities,
fourth-generationneutrinosorsupersymmetricparticles.WestudythefinalstateinwhichoneZboson
decaystotwochargedleptonsandtheseconddecayshadronically.Indatacorrespondingtoanintegrated
luminosityof4:2fb1fromproton-antiprotoncollisionsrecordedbytheCDFIIdetectorattheTevatron,
withcenter-of-massenergyof1.96TeV,wefindagreementbetweendataandstandard-modelbackgrounds.
Wecalculate95%confidencelevelupperlimitsonthecrosssectionoftheprocesspp!
X2X2
!ZZX1X1rangingfrom50fbto1pb,dependingonthemassesofX1andX2.
Keyword
HighEnergyPhysics; ParticlePhysics; CDF
Journal Title
PhysicalReviewD
Citation Volume
85
ISSN
1550-7998
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Appears in Collections:
7. KISTI 연구성과 > 학술지 발표논문
URI
https://repository.kisti.re.kr/handle/10580/14039
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