Observation of WW Production and Search for H Production in Proton-Proton Collisions at sqrt[s]=13TeV.

The observation of WW production in proton-proton collisions at a center-of-mass energy of 13TeV with an integrated luminosity of 138fb^{-1} is presented. The observed (expected) significance is 5.6 (5.1) standard deviations. Events are selected by requiring exactly two leptons (one electron and one muon) of opposite charge, moderate missing transverse momentum, and a photon. The measured fiducial cross section for WW is 5.90.8(stat)0.8(syst)0.7(modeling)fb, in agreement with the next-to-leading order quantum chromodynamics prediction. The analysis is extended with a search for the associated production of the Higgs boson and a photon, which is generated by a coupling of the Higgs boson to light quarks. The result is used to constrain the Higgs boson couplings to light quarks.

Hayrapetyan, A., Tumasyan, A., Adam, W., Andrejkovic, J. W., Bergauer, T., Chatterjee, S., ... CMS Collaboration.

Hayrapetyan, A||Tumasyan, A||Adam, W||Andrejkovic, JW||Bergauer, T||Chatterjee, S||Damanakis, K||Dragicevic, M||Escalante Del Valle, A||Hussain, PS||Jeitler, M||Krammer, N||Liko, D||Mikulec, I||Schieck, J||Schöfbeck, R||Schwarz, D||Sonawane, M||Templ, S||Waltenberger, W||Wulz, C-E||Darwish, MR||Janssen, T||Van Mechelen, P||Bols, ES||D'Hondt, J||Dansana, S||De Moor, A||Delcourt, M||El Faham, H||Lowette, S||Makarenko, I||Müller, D||Sahasransu, AR||Tavernier, S||Tytgat, M||Van Putte, S||Vannerom, D||Clerbaux, B||De Lentdecker, G||Favart, L||Hohov, D||Jaramillo, J||Khalilzadeh, A||Lee, K||Mahdavikhorrami, M||Malara, A||Paredes, S||Pétré, L||Postiau, N||Thomas, L||Vanden Bemden, M||Vander Velde, C||Vanlaer, P||De Coen, M||Dobur, D||Hong, Y||Knolle, J||Lambrecht, L||Mestdach, G||Rendón, C||Samalan, A||Skovpen, K||Van Den Bossche, N||Wezenbeek, L||Benecke, A||Bruno, G||Caputo, C||Delaere, C||Donertas, IS||Giammanco, A||Jaffel, K||Jain, Sa||Lemaitre, V||Lidrych, J||Mastrapasqua, P||Mondal, K||Tran, TT||Wertz, S|

Observation of WW Production and Search for H Production in Proton-Proton Collisions at sqrt[s]=13TeV. Academic Article