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Measurement of three-jet production cross-sections in $pp$ collisions at 7 TeV centre-of-mass energy using the ATLAS detector

2015-05-27Journal article Open access
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dc.contributor.authorATLAS collaboration (2894 authors)
dc.contributor.authorAguilar-Saavedra, Juan Antonio
dc.contributor.authorAmor Dos Santos, Susana Patricia
dc.contributor.authorAnjos, Nuno
dc.contributor.authorAraque, Juan Pedro
dc.contributor.authorCantrill, Robert
dc.contributor.authorCarvalho, João
dc.contributor.authorCastro, Nuno Filipe
dc.contributor.authorConde Muiño, Patricia
dc.contributor.authorDa Cunha Sargedas De Sousa, Mario Jose
dc.contributor.authorDo Valle Wemans, André
dc.contributor.authorFiolhais, Miguel
dc.contributor.authorGalhardo, Bruno
dc.contributor.authorGomes, Agostinho
dc.contributor.authorGonçalo, Ricardo
dc.contributor.authorJorge, Pedro
dc.contributor.authorLopes, Lourenco
dc.contributor.authorMachado Miguens, Joana
dc.contributor.authorMaio, Amélia
dc.contributor.authorManeira, José
dc.contributor.authorMarques, Carlos
dc.contributor.authorOnofre, António
dc.contributor.authorPalma, Alberto
dc.contributor.authorPedro, Rute
dc.contributor.authorPina, João Antonio
dc.contributor.authorPinto, Belmiro
dc.contributor.authorSantos, Helena
dc.contributor.authorSaraiva, João
dc.contributor.authorSilva, José
dc.contributor.authorTavares Delgado, Ademar
dc.contributor.authorVeloso, Filipe
dc.contributor.authorWolters, Helmut
dc.date.accessioned2019-02-04T05:23:27Z
dc.date.available2019-02-04T05:23:27Z
dc.date.issued2015-05-27
dc.date.updated2019-02-04T05:23:27Z
dc.description.abstractDouble-differential three-jet production cross-sections are measured in proton–proton collisions at a centre-of-mass energy of $\sqrt{s} = 7\mathrm \,TeV{}$ using the ATLAS detector at the large hadron collider. The measurements are presented as a function of the three-jet mass $(m_{jjj})$ , in bins of the sum of the absolute rapidity separations between the three leading jets $(\left| Y^{*}\right| )$ . Invariant masses extending up to 5  TeV are reached for $8< \left| Y^{*}\right| < 10$ . These measurements use a sample of data recorded using the ATLAS detector in 2011, which corresponds to an integrated luminosity of $4.51~\text{ fb }^{-1}$ . Jets are identified using the anti- $k_{t}$ algorithm with two different jet radius parameters, $R=0.4$ and $R=0.6$ . The dominant uncertainty in these measurements comes from the jet energy scale. Next-to-leading-order QCD calculations corrected to account for non-perturbative effects are compared to the measurements. Good agreement is found between the data and the theoretical predictions based on most of the available sets of parton distribution functions, over the full kinematic range, covering almost seven orders of magnitude in the measured cross-section values.
dc.description.versionPeer Reviewed
dc.identifierEur.Phys.J. C75 (2015) 228; DOI 10.1140/epjc/s10052-015-3363-3
dc.identifier.urihttp://dx.doi.org/10.1140/epjc/s10052-015-3363-3
dc.identifier.urihttp://hdl.handle.net/10400.26/26721
dc.language.isoeng
dc.titleMeasurement of three-jet production cross-sections in $pp$ collisions at 7 TeV centre-of-mass energy using the ATLAS detector
dc.typejournal article
dspace.entity.typePublication
rcaap.rightsopenAccesspt
rcaap.typearticle

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