Search for pairs of highly collimated photon-jets in pp collisions at root s=13 TeV with the ATLAS detector
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F19%3A73594764" target="_blank" >RIV/61989592:15310/19:73594764 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21220/19:00329329 RIV/68407700:21340/19:00329329 RIV/68407700:21670/19:00329329 RIV/00216208:11320/19:10407429
Result on the web
<a href="https://journals.aps.org/prd/pdf/10.1103/PhysRevD.99.012008" target="_blank" >https://journals.aps.org/prd/pdf/10.1103/PhysRevD.99.012008</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevD.99.012008" target="_blank" >10.1103/PhysRevD.99.012008</a>
Alternative languages
Result language
angličtina
Original language name
Search for pairs of highly collimated photon-jets in pp collisions at root s=13 TeV with the ATLAS detector
Original language description
Results of a search for the pair production of photon-jets-collimated groupings of photons-in the ATLAS detector at the Large Hadron Collider are reported. Highly collimated photon-jets can arise from the decay of new, highly boosted particles that can decay to multiple photons collimated enough to be identified in the electromagnetic calorimeter as a single, photonlike energy cluster. Data from proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 36.7 fb(-1), were collected in 2015 and 2016. Candidate photon-jet pair production events are selected from those containing two reconstructed photons using a set of identification criteria much less stringent than that typically used for the selection of photons, with additional criteria applied to provide improved sensitivity to photon-jets. Narrow excesses in the reconstructed diphoton mass spectra are searched for. The observed mass spectra are consistent with the Standard Model background expectation. The results are interpreted in the context of a model containing a new, high-mass scalar particle with narrow width, X, that decays into pairs of photon-jets via new, light particles, a. Upper limits are placed on the cross section times the product of branching ratios sigma x B(X -> aa) x B(a -> gamma gamma)(2) for 200 GeV < m(X) < 2 TeV and for ranges of m(a) from a lower mass of 100 MeV up to between 2 and 10 GeV, depending upon m(X). Upper limits are also placed on sigma x B(X -> aa) x B(a -> 3 pi(0))(2) for the same range of m(X) and for ranges of m(a) from a lower mass of 500 MeV up to between 2 and 10 GeV.
Czech name
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Czech description
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Classification
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
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
PHYSICAL REVIEW D
ISSN
2470-0010
e-ISSN
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Volume of the periodical
99
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
29
Pages from-to
"012008-1"-"012008-29"
UT code for WoS article
000456035800008
EID of the result in the Scopus database
2-s2.0-85061097157