Search for same-sign top-quark pair production at √s = 7 TeV and limits on avour changing neutral currents in the top sector

Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Bergauer, T.; Dragicevic, M.; Erö, J.; Fabjan, C.; Friedl, M.; Frühwirth, R.; Ghete, V. M.; Hammer, J.; Hänsel, S.; Hoch, M.; Hörmann, N.; Hrubec, J.; Jeitler, M.; Kiesenhofer, W.; Krammer, M.; Liko, D.; Mikulec, I.; Pernicka, M.; Rahbaran, B.; Rohringer, H.; Schöfbeck, R.; Strauss, J.; Taurok, A.; Teischinger, F.; Wagner, P.; Waltenberger, W.; Walzel, G.; Widl, E.; Wulz, C. E.; Mossolov, V.; Shumeiko, N.; Suarez Gonzalez, J.; Bansal, S.; Benucci, L.; De Wolf, E. A.; Janssen, X.; Maes, T.; Mucibello, L.; Ochesanu, S.; Roland, B.; Rougny, R.; Selvaggi, M.; Van Haevermaet, H.; Van Mechelen, P.; Van Remortel, N.; Blekman, F.; Blyweert, S.; D'Hondt, J.; Devroede, O.; Gonzalez Suarez, R.; Kalogeropoulos, A.; Maes, M.; Van Doninck, W.; Van Mulders, P.; Van Onsem, G. P.; Villella, I.; Charaf, O.; Clerbaux, B.; De Lentdecker, G.; Dero, V.; Gay, A. P.R.; Hammad, G. H.; Hreus, T.; Marage, P. E.; Raval, A.; Thomas, L.; Vander Velde, C.; Vanlaer, P.; Adler, V.; Cimmino, A.; Costantini, S.; Grunewald, M.; Klein, B.; Lellouch, J.; Marinov, A.; Mccartin, J.; Ryckbosch, D.; Thyssen, F.; Tytgat, M.; Vanelderen, L.; Verwilligen, P.; Walsh, S.; Zaganidis, N.; Basegmez, S.; Bruno, G.; Caudron, J.; Ceard, L.; Cortina Gil, E.; De Favereau De Jeneret, J.; Delaere, C.; Favart, D.; Giammanco, A.; Grégoire, G.; Hollar, J.

Search for same-sign top-quark pair production at √s = 7 TeV and limits on avour changing neutral currents in the top sector

dc.contributor.author	Chatrchyan, S.
dc.contributor.author	Khachatryan, V.
dc.contributor.author	Sirunyan, A. M.
dc.contributor.author	Tumasyan, A.
dc.contributor.author	Adam, W.
dc.contributor.author	Bergauer, T.
dc.contributor.author	Dragicevic, M.
dc.contributor.author	Erö, J.
dc.contributor.author	Fabjan, C.
dc.contributor.author	Friedl, M.
dc.contributor.author	Frühwirth, R.
dc.contributor.author	Ghete, V. M.
dc.contributor.author	Hammer, J.
dc.contributor.author	Hänsel, S.
dc.contributor.author	Hoch, M.
dc.contributor.author	Hörmann, N.
dc.contributor.author	Hrubec, J.
dc.contributor.author	Jeitler, M.
dc.contributor.author	Kiesenhofer, W.
dc.contributor.author	Krammer, M.
dc.contributor.author	Liko, D.
dc.contributor.author	Mikulec, I.
dc.contributor.author	Pernicka, M.
dc.contributor.author	Rahbaran, B.
dc.contributor.author	Rohringer, H.
dc.contributor.author	Schöfbeck, R.
dc.contributor.author	Strauss, J.
dc.contributor.author	Taurok, A.
dc.contributor.author	Teischinger, F.
dc.contributor.author	Wagner, P.
dc.contributor.author	Waltenberger, W.
dc.contributor.author	Walzel, G.
dc.contributor.author	Widl, E.
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	Bansal, S.
dc.contributor.author	Benucci, L.
dc.contributor.author	De Wolf, E. A.
dc.contributor.author	Janssen, X.
dc.contributor.author	Maes, T.
dc.contributor.author	Mucibello, L.
dc.contributor.author	Ochesanu, S.
dc.contributor.author	Roland, B.
dc.contributor.author	Rougny, R.
dc.contributor.author	Selvaggi, M.
dc.contributor.author	Van Haevermaet, H.
dc.contributor.author	Van Mechelen, P.
dc.contributor.author	Van Remortel, N.
dc.contributor.author	Blekman, F.
dc.contributor.author	Blyweert, S.
dc.contributor.author	D'Hondt, J.
dc.contributor.author	Devroede, O.
dc.contributor.author	Gonzalez Suarez, R.
dc.contributor.author	Kalogeropoulos, A.
dc.contributor.author	Maes, M.
dc.contributor.author	Van Doninck, W.
dc.contributor.author	Van Mulders, P.
dc.contributor.author	Van Onsem, G. P.
dc.contributor.author	Villella, I.
dc.contributor.author	Charaf, O.
dc.contributor.author	Clerbaux, B.
dc.contributor.author	De Lentdecker, G.
dc.contributor.author	Dero, V.
dc.contributor.author	Gay, A. P.R.
dc.contributor.author	Hammad, G. H.
dc.contributor.author	Hreus, T.
dc.contributor.author	Marage, P. E.
dc.contributor.author	Raval, A.
dc.contributor.author	Thomas, L.
dc.contributor.author	Vander Velde, C.
dc.contributor.author	Vanlaer, P.
dc.contributor.author	Adler, V.
dc.contributor.author	Cimmino, A.
dc.contributor.author	Costantini, S.
dc.contributor.author	Grunewald, M.
dc.contributor.author	Klein, B.
dc.contributor.author	Lellouch, J.
dc.contributor.author	Marinov, A.
dc.contributor.author	Mccartin, J.
dc.contributor.author	Ryckbosch, D.
dc.contributor.author	Thyssen, F.
dc.contributor.author	Tytgat, M.
dc.contributor.author	Vanelderen, L.
dc.contributor.author	Verwilligen, P.
dc.contributor.author	Walsh, S.
dc.contributor.author	Zaganidis, N.
dc.contributor.author	Basegmez, S.
dc.contributor.author	Bruno, G.
dc.contributor.author	Caudron, J.
dc.contributor.author	Ceard, L.
dc.contributor.author	Cortina Gil, E.
dc.contributor.author	De Favereau De Jeneret, J.
dc.contributor.author	Delaere, C.
dc.contributor.author	Favart, D.
dc.contributor.author	Giammanco, A.
dc.contributor.author	Grégoire, G.
dc.contributor.author	Hollar, J.
dc.date.accessioned	2022-03-27T06:41:37Z
dc.date.available	2022-03-27T06:41:37Z
dc.date.issued	2011-01-01
dc.description.abstract	An inclusive search for same-sign top-quark pair production in pp collisions at √s = 7TeV is performed using a data sample recorded with the CMS detector in 2010, corresponding to an integrated luminosity of 35 pb -1. This analysis is motivated by recent studies of pp → tt reporting mass-dependent forward-backward asymmetries larger than expected from the standard model. These asymmetries could be due to Flavor Changing Neutral Currents (FCNC) in the top sector induced by t-channel exchange of a massive neutral vector boson (Z'). Models with such a Z' also predict enhancement of same-sign top-pair production in pp or pp collisions. Limits are set as a function of the Z' mass and its couplings to u and t quarks. These limits disfavour the FCNC interpretation of the Tevatron results. © SISSA 2011.
dc.identifier.citation	Journal of High Energy Physics. v.2011(8)
dc.identifier.issn	11266708
dc.identifier.uri	10.1007/JHEP08(2011)005
dc.identifier.uri	http://link.springer.com/10.1007/JHEP08(2011)005
dc.identifier.uri	https://dspace.uohyd.ac.in/handle/1/9739
dc.subject	Hadron-Hadron Scattering
dc.title	Search for same-sign top-quark pair production at √s = 7 TeV and limits on avour changing neutral currents in the top sector
dc.type	Journal. Article
dspace.entity.type

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