Search for Higgs boson decays into pairs of light (pseudo)scalar particles in the γγ jj final state in pp collisions 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%3A00500404" target="_blank" >RIV/68378271:_____/18:00500404 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.physletb.2018.06.011" target="_blank" >http://dx.doi.org/10.1016/j.physletb.2018.06.011</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.physletb.2018.06.011" target="_blank" >10.1016/j.physletb.2018.06.011</a>

Result language
angličtina
Original language name
Search for Higgs boson decays into pairs of light (pseudo)scalar particles in the γγ jj final state in pp collisions at √s=13 TeV with the ATLAS detector
Original language description
This Letter presents a search for exotic decays of the Higgs boson to a pair of new (pseudo)scalar particles, H→aa , where the a particle has a mass in the range 20–60 GeV, and where one of the a bosons decays into a pair of photons and the other to a pair of gluons. The search is performed in event samples enhanced in vector-boson fusion Higgs boson production by requiring two jets with large invariant mass in addition to the Higgs boson candidate decay products. The analysis is based on the full dataset of pp collisions at s=13TeV recorded in 2015 and 2016 with the ATLAS detector at the CERN Large Hadron Collider, corresponding to an integrated luminosity of 36.7 fb −1 . The data are in agreement with the Standard Model predictions and an upper limit at the 95% confidence level is placed on the production cross section times the branching ratio for the decay H→aa→γγgg . This limit ranges from 3.1 pb to 9.0 pb depending on the mass of the a boson.n
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
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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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