Электронный каталог

Статья

Aad, G.
Observation of W*+W*−*q production in pp collisions at *%s = 13 TeV with the ATLAS Detector and Constraints on Anomalous Quartic Gauge-Boson couplings / G.Aad, F.Ahmadov, I.N.Aleksandrov, V.A.Bednyakov, I.R.Boyko, G.Chelkov, A.Cheplakov, M.V.Chizhov, D.V.Dedovich, M.Demichev, A.R.Didenko, M.I.Gostkin, S.N.Karpov, Z.M.Karpova, U.Kruchonak, V.Kukhtin, Y.Kulchitsky, E.Ladygin, V.Lyubushkin, T.Lyubushkina, S.Malyukov, M.Mineev, E.Plotnikova, I.N.Potrap, N.A.Rusakovich, M.Shiyakova, A.Soloshenko, A.Tropina, P.V.Tsiareshka, T.Turtuvshin, A.Vasyukov, I.Yeletskikh, A.Zhemchugov, N.I.Zimine, [ATLAS Collab.]. – Text : electronic // Physics Letters B. – 2026. – Vol. 873. – P. 140050. – URL: https://doi.org/10.1016/j.physletb.2025.140050. – Bibliogr.: 94.

This Letter reports the observation of 𝑊&sup(+)𝑊&sup(−)*g triboson production in 140 fb&sup(−1) of data collected by the ATLAS detector from proton–proton collisions at a centre-of-mass energy of *% 𝑠 = 13 TeV at the LHC. Events with an opposite-charge e*m pair, a high transverse-momentum photon, and significant missing transverse momentum are considered. The observed (expected) significance of the signal is 5.9 (6.0) standard deviations. The measured fiducial cross-section, defined for the 𝑊&sup(+)𝑊&sup(−)*g *> 𝑒 &sup(*()*m &sup(*()*n*n*n^-*g final state is 6.2 *( 0.8 (stat.) *( 0.6 (sys.) fb, in good agreement with the Standard Model prediction of 6.1&sup(+1.0) &sub(−0.7) fb. Constraints on the Wilson coefficients of 13 dimension-8 operators describing physics beyond the Standard Model through anomalous quartic gauge-boson couplings are derived using the effective field theory framework.



Спец.(статьи,препринты) = С 346.2в - Взаимодействие протонов с протонами
Спец.(статьи,препринты) = С 346.6е2 - Промежуточные бозоны
ОИЯИ = ОИЯИ (JINR)2026