Searches for exclusive Higgs and Z boson decays into J/ψγ, ψ(2S)γ and Υ(nS)γ at √s=13 TeV with the ATLAS detector

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F18%3A00500458" target="_blank" >RIV/68378271:_____/18:00500458 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.physletb.2018.09.024" target="_blank" >http://dx.doi.org/10.1016/j.physletb.2018.09.024</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.physletb.2018.09.024" target="_blank" >10.1016/j.physletb.2018.09.024</a>

Result language
angličtina
Original language name
Searches for exclusive Higgs and Z boson decays into J/ψγ, ψ(2S)γ and Υ(nS)γ at √s=13 TeV with the ATLAS detector
Original language description
Searches for the exclusive decays of the Higgs and Z bosons into a J/ψ , ψ(2S) , or ϒ(nS) ( n=1,2,3 ) meson and a photon are performed with a pp collision data sample corresponding to an integrated luminosity of 36.1fb−1 collected at s=13TeV with the ATLAS detector at the CERN Large Hadron Collider. No significant excess of events is observed above the expected backgrounds, and 95% confidence-level upper limits on the branching fractions of the Higgs boson decays to J/ψγ , ψ(2S)γ , and ϒ(nS)γ of 3.5×10−4 , 2.0×10−3 , and (4.9,5.9,5.7)×10−4 , respectively, are obtained assuming Standard Model production. The corresponding 95% confidence-level upper limits for the branching fractions of the Z boson decays are 2.3×10−6 , 4.5×10−6 and (2.8,1.7,4.8)×10−6 , respectively.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10303 - Particles and field physics

Project
<a href="/en/project/LTT17018" target="_blank" >LTT17018: Getting new knowledge of the microworld using the CERN infrastructure</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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