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Measurement of the associated production of a single top quark and a Z boson in pp collisions at s=13TeV
- Author(s): Sirunyan, AM;
- Tumasyan, A;
- Adam, W;
- Ambrogi, F;
- Asilar, E;
- Bergauer, T;
- Brandstetter, J;
- Brondolin, E;
- Dragicevic, M;
- Erö, J;
- Escalante Del Valle, A;
- Flechl, M;
- Friedl, M;
- Frühwirth, R;
- Ghete, VM;
- Grossmann, J;
- Hrubec, J;
- Jeitler, M;
- König, A;
- Krammer, N;
- Krätschmer, I;
- Liko, D;
- Madlener, T;
- Mikulec, I;
- Pree, E;
- Rad, N;
- Rohringer, H;
- Schieck, J;
- Schöfbeck, R;
- Spanring, M;
- Spitzbart, D;
- Taurok, A;
- Waltenberger, W;
- Wittmann, J;
- Wulz, CE;
- Zarucki, M;
- Chekhovsky, V;
- Mossolov, V;
- Suarez Gonzalez, J;
- De Wolf, EA;
- Di Croce, D;
- Janssen, X;
- Lauwers, J;
- Van De Klundert, M;
- Van Haevermaet, H;
- Van Mechelen, P;
- Van Remortel, N;
- Abu Zeid, S;
- Blekman, F;
- D'Hondt, J;
- De Bruyn, I;
- De Clercq, J;
- Deroover, K;
- Flouris, G;
- Lontkovskyi, D;
- Lowette, S;
- Marchesini, I;
- Moortgat, S;
- Moreels, L;
- Python, Q;
- Skovpen, K;
- Tavernier, S;
- Van Doninck, W;
- Van Mulders, P;
- Van Parijs, I;
- Beghin, D;
- Bilin, B;
- Brun, H;
- Clerbaux, B;
- De Lentdecker, G;
- Delannoy, H;
- Dorney, B;
- Fasanella, G;
- Favart, L;
- Goldouzian, R;
- Grebenyuk, A;
- Kalsi, AK;
- Lenzi, T;
- Luetic, J;
- Maerschalk, T;
- Marinov, A;
- Seva, T;
- Starling, E;
- Vander Velde, C;
- Vanlaer, P;
- Vannerom, D;
- Yonamine, R;
- Zenoni, F;
- Cornelis, T;
- Dobur, D;
- Fagot, A;
- Gul, M;
- Khvastunov, I;
- Poyraz, D;
- Roskas, C;
- Salva, S;
- Trocino, D;
- Tytgat, M;
- Verbeke, W;
- Vit, M
- et al.
Published Web Location
http://doi.org/10.1016/j.physletb.2018.02.025No data is associated with this publication.
Abstract
A measurement is presented of the associated production of a single top quark and a Z boson. The study uses data from proton–proton collisions at s=13TeV recorded by the CMS experiment, corresponding to an integrated luminosity of 35.9 fb−1. Using final states with three leptons (electrons or muons), the tZq production cross section is measured to be σ(pp→tZq→Wbℓ+ℓ−q)=123−31+33(stat)−23+29(syst)fb, where ℓ stands for electrons, muons, or τ leptons, with observed and expected significances of 3.7 and 3.1 standard deviations, respectively.
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