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Measurements of t(t)over-bar differential cross-sections of highly boosted top quarks decaying to all-hadronic final states in \(pp\) collisions at root \(s\)=13 Te V using the ATLAS detector
Please always quote using this URN: urn:nbn:de:bvb:20-opus-226771
- Measurements are made of differential cross-sections of highly boosted pair-produced top quarks as a function of top-quark and t (t) over bar system kinematic observables using proton-proton collisions at a center-of-mass energy of root s = 13 TeV. The data set corresponds to an integrated luminosity of 36.1 fb(-1), recorded in 2015 and 2016 with the ATLAS detector at the CERN Large Hadron Collider. Events with two large-radius jets in the final state, one with transverse momentum p(T) > 500 GeV and a second with p(T) > 350 GeV, are used forMeasurements are made of differential cross-sections of highly boosted pair-produced top quarks as a function of top-quark and t (t) over bar system kinematic observables using proton-proton collisions at a center-of-mass energy of root s = 13 TeV. The data set corresponds to an integrated luminosity of 36.1 fb(-1), recorded in 2015 and 2016 with the ATLAS detector at the CERN Large Hadron Collider. Events with two large-radius jets in the final state, one with transverse momentum p(T) > 500 GeV and a second with p(T) > 350 GeV, are used for the measurement. The top-quark candidates are separated from the multijet background using jet substructure information and association with a b-tagged jet. The measured spectra are corrected for detector effects to a particle-level fiducial phase space and a parton-level limited phase space, and are compared to several Monte Carlo simulations by means of calculated chi(2) values. The cross-section for t (t) over bar production in the fiducial phase-space region is 292 +/- 7(stat) +/- 71(syst) tb, to be compared to the theoretical prediction of 384 +/- 36 fb.…
| URN: | urn:nbn:de:bvb:20-opus-226771 |
|---|---|
| Document Type: | Journal article |
| Faculties: | Fakultät für Physik und Astronomie / Physikalisches Institut |
| Language: | English |
| Parent Title (English): | Physical Review D |
| Year of Completion: | 2018 |
| Volume: | 98 |
| Article Number: | 012003 |
| Pagenumber: | 39 |
| Source: | Phys. Rev. D 98, 012003, 2018. doi:10.1103/PhysRevD.98.012003 |
| DOI: | https://doi.org/10.1103/PhysRevD.98.012003 |
| Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
| Tag: | Bayesian methods; Particle data analysis; Parton Distributions; Perturbative QCD; Quantum chromodynamics; Quarks; Strong interaction; Top quark |
| Release Date: | 2023/12/15 |
| Creating Corporation: | The ATLAS Collaboration |
| Licence (German): |  CC BY: Creative-Commons-Lizenz: Namensnennung 4.0 International |