Observation of top quark pairs produced in association with a vector boson in pp collisions at √s = 8 TeV

Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Asilar, E.; Bergauer, T.; Brandstetter, J.; Brondolin, E.; Dragicevic, M.; Erö, J.; Flechl, M.; Friedl, M.; Frühwirth, R.; Ghete, V. M.; Hartl, C.; Hörmann, N.; Hrubec, J.; Jeitler, M.; Knünz, V.; König, A.; Krammer, M.; Krätschmer, I.; Liko, D.; Matsushita, T.; Mikulec, I.; Rabady, D.; Rahbaran, B.; Rohringer, H.; Schieck, J.; Schöfbeck, R.; Strauss, J.; Treberer-Treberspurg, W.; Waltenberger, W.; Wulz, C. E.; Mossolov, V.; Shumeiko, N.; Suarez Gonzalez, J.; Alderweireldt, S.; Cornelis, T.; De Wolf, E. A.; Janssen, X.; Knutsson, A.; Lauwers, J.; Luyckx, S.; Rougny, R.; Van De Klundert, M.; Van Haevermaet, H.; Van Mechelen, P.; Van Remortel, N.; Van Spilbeeck, A.; Abu Zeid, S.; Blekman, F.; D’Hondt, J.; Daci, N.; De Bruyn, I.; Deroover, K.; Heracleous, N.; Keaveney, J.; Lowette, S.; Moreels, L.; Olbrechts, A.; Python, Q.; Strom, D.; Tavernier, S.; Van Doninck, W.; Van Mulders, P.; Van Onsem, G. P.; Van Parijs, I.; Barria, P.; Brun, H.; Caillol, C.; Clerbaux, B.; De Lentdecker, G.; Fasanella, G.; Favart, L.; Grebenyuk, A.; Karapostoli, G.; Lenzi, T.; Léonard, A.; Maerschalk, T.; Marinov, A.; Perniè, L.; Randle-Conde, A.; Reis, T.; Seva, T.; Vander Velde, C.; Vanlaer, P.; Yonamine, R.; Zenoni, F.; Zhang, F.; Beernaert, K.; Benucci, L.; Cimmino, A.; Crucy, S.; Dobur, D.; Fagot, A.; Garcia, G.; Gul, M.; McCartin, J.; Ocampo Rios, A. A.

Observation of top quark pairs produced in association with a vector boson in pp collisions at √s = 8 TeV

dc.contributor.author	Khachatryan, V.
dc.contributor.author	Sirunyan, A. M.
dc.contributor.author	Tumasyan, A.
dc.contributor.author	Adam, W.
dc.contributor.author	Asilar, E.
dc.contributor.author	Bergauer, T.
dc.contributor.author	Brandstetter, J.
dc.contributor.author	Brondolin, E.
dc.contributor.author	Dragicevic, M.
dc.contributor.author	Erö, J.
dc.contributor.author	Flechl, M.
dc.contributor.author	Friedl, M.
dc.contributor.author	Frühwirth, R.
dc.contributor.author	Ghete, V. M.
dc.contributor.author	Hartl, C.
dc.contributor.author	Hörmann, N.
dc.contributor.author	Hrubec, J.
dc.contributor.author	Jeitler, M.
dc.contributor.author	Knünz, V.
dc.contributor.author	König, A.
dc.contributor.author	Krammer, M.
dc.contributor.author	Krätschmer, I.
dc.contributor.author	Liko, D.
dc.contributor.author	Matsushita, T.
dc.contributor.author	Mikulec, I.
dc.contributor.author	Rabady, D.
dc.contributor.author	Rahbaran, B.
dc.contributor.author	Rohringer, H.
dc.contributor.author	Schieck, J.
dc.contributor.author	Schöfbeck, R.
dc.contributor.author	Strauss, J.
dc.contributor.author	Treberer-Treberspurg, W.
dc.contributor.author	Waltenberger, W.
dc.contributor.author	Wulz, C. E.
dc.contributor.author	Mossolov, V.
dc.contributor.author	Shumeiko, N.
dc.contributor.author	Suarez Gonzalez, J.
dc.contributor.author	Alderweireldt, S.
dc.contributor.author	Cornelis, T.
dc.contributor.author	De Wolf, E. A.
dc.contributor.author	Janssen, X.
dc.contributor.author	Knutsson, A.
dc.contributor.author	Lauwers, J.
dc.contributor.author	Luyckx, S.
dc.contributor.author	Rougny, R.
dc.contributor.author	Van De Klundert, M.
dc.contributor.author	Van Haevermaet, H.
dc.contributor.author	Van Mechelen, P.
dc.contributor.author	Van Remortel, N.
dc.contributor.author	Van Spilbeeck, A.
dc.contributor.author	Abu Zeid, S.
dc.contributor.author	Blekman, F.
dc.contributor.author	D’Hondt, J.
dc.contributor.author	Daci, N.
dc.contributor.author	De Bruyn, I.
dc.contributor.author	Deroover, K.
dc.contributor.author	Heracleous, N.
dc.contributor.author	Keaveney, J.
dc.contributor.author	Lowette, S.
dc.contributor.author	Moreels, L.
dc.contributor.author	Olbrechts, A.
dc.contributor.author	Python, Q.
dc.contributor.author	Strom, D.
dc.contributor.author	Tavernier, S.
dc.contributor.author	Van Doninck, W.
dc.contributor.author	Van Mulders, P.
dc.contributor.author	Van Onsem, G. P.
dc.contributor.author	Van Parijs, I.
dc.contributor.author	Barria, P.
dc.contributor.author	Brun, H.
dc.contributor.author	Caillol, C.
dc.contributor.author	Clerbaux, B.
dc.contributor.author	De Lentdecker, G.
dc.contributor.author	Fasanella, G.
dc.contributor.author	Favart, L.
dc.contributor.author	Grebenyuk, A.
dc.contributor.author	Karapostoli, G.
dc.contributor.author	Lenzi, T.
dc.contributor.author	Léonard, A.
dc.contributor.author	Maerschalk, T.
dc.contributor.author	Marinov, A.
dc.contributor.author	Perniè, L.
dc.contributor.author	Randle-Conde, A.
dc.contributor.author	Reis, T.
dc.contributor.author	Seva, T.
dc.contributor.author	Vander Velde, C.
dc.contributor.author	Vanlaer, P.
dc.contributor.author	Yonamine, R.
dc.contributor.author	Zenoni, F.
dc.contributor.author	Zhang, F.
dc.contributor.author	Beernaert, K.
dc.contributor.author	Benucci, L.
dc.contributor.author	Cimmino, A.
dc.contributor.author	Crucy, S.
dc.contributor.author	Dobur, D.
dc.contributor.author	Fagot, A.
dc.contributor.author	Garcia, G.
dc.contributor.author	Gul, M.
dc.contributor.author	McCartin, J.
dc.contributor.author	Ocampo Rios, A. A.
dc.date.accessioned	2022-03-27T06:56:53Z
dc.date.available	2022-03-27T06:56:53Z
dc.date.issued	2016-01-01
dc.description.abstract	Measurements of the cross sections for top quark pairs produced in association with a W or Z boson are presented, using 8 TeV pp collision data corresponding to an integrated luminosity of 19.5 fb-1, collected by the CMS experiment at the LHC. Final states are selected in which the associated W boson decays to a charged lepton and a neutrino or the Z boson decays to two charged leptons. Signal events are identified by matching reconstructed objects in the detector to specific final state particles from tt̄W or tt̄Z decays. The tt̄W cross section is measured to be (Formula Presented) fb with a significance of 4.8 standard deviations from the background-only hypothesis. The tt̄Z cross section is measured to be (Formula Presented) fb with a significance of 6.4 standard deviations from the background-only hypothesis. These measurements are used to set bounds on five anomalous dimension-six operators that would affect the tt̄W and tt̄Z cross sections.
dc.identifier.citation	Journal of High Energy Physics. v.2016(1)
dc.identifier.issn	11266708
dc.identifier.uri	10.1007/JHEP01(2016)096
dc.identifier.uri	http://link.springer.com/10.1007/JHEP01(2016)096
dc.identifier.uri	https://dspace.uohyd.ac.in/handle/1/10617
dc.subject	Electroweak interaction
dc.subject	Hadron-Hadron scattering
dc.subject	Top physics
dc.title	Observation of top quark pairs produced in association with a vector boson in pp collisions at √s = 8 TeV
dc.type	Journal. Article
dspace.entity.type

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