Measurement of the $W^+W^-$ production cross section in $pp$ collisions at a centre-of-mass energy of $\sqrt{s}$ = 13 TeV with the ATLAS experiment

• Published in: Physics letters. B 2017-02, Vol.773, p.354-374
• Main Authors: Aaboud, M., Berger, N., Burger, A.M., Delmastro, M., Di Ciaccio, L., Elles, S., Grevtsov, K., Guillemin, T., Hryn’ova, T., Jézéquel, S., Koletsou, I., Lafaye, R., Lévêque, Jérémy, Mastrandea, P., Sauvan, E., Smart, B.H., Todorov, T., Wingerter-Seez, I., Yatsenko, E., Boumediene, D., Busato, E., Calvet, D., Calvet, S., Chomont, A.R., Donini, J., Ganguly, S., Gris, Ph, Madar, R., Pallin, D., Romano Saez, S.M., Santoni, C., Simon, D., Vazeille, F., Albrand, S., Berlendis, S., Bethani, A., Camincher, C., Collot, J., Crépé-Renaudin, S., Delsart, P.A., Gabaldon, C., Genest, M.H., Gradin, P.O.J., Hostachy, J.Y., Ledroit-Guillon, F., Lleres, A., Lucotte, A., Malek, F., Petit, E., Stark, J., Trocmé, B., Wu, M., Aad, G., Alstaty, M., Barbero, M., Calandri, A., Calvet, T.P., Coadou, Y., Diaconu, C., Djama, F., Ellajosyula, V., Feligioni, L., Hadef, A., Hallewell, G.D., Hubaut, F., Kahn, S.J., Knoops, E. B. F. G., Le Guirriec, E., Liu, K., Madaffari, D., Monnier, E., Muanza, S., Nagy, E., Pralavorio, P., Rodina, Y., Rozanov, A., Talby, M., Theveneaux-Pelzer, T., Ticse Torres, R.E., Tisserant, S., Toth, J., Touchard, F., Vacavant, L., Wolff, R.
• Format: Article
• Language: English
• Subjects: High Energy Physics - Experiment; Physics
• ISSN: 0370-2693
• DOI: 10.1016/j.physletb.2017.08.047

The production of opposite-charge $W$-boson pairs in proton-proton collisions at $\sqrt{s}$ = 13 TeV is measured using data corresponding to 3.16 fb$^{-1}$ of integrated luminosity collected by the ATLAS detector at the CERN Large Hadron Collider in 2015. Candidate $W$-boson pairs are selected by identifying their leptonic decays into an electron, a muon and neutrinos. Events with reconstructed jets are not included in the candidate event sample. The cross-section measurement is performed in a fiducial phase space close to the experimental acceptance and is compared to theoretical predictions. Agreement is found between the measurement and the most accurate calculations available.