Measurement of the electroweak production of &lt;em&gt;Zγ&lt;/em&gt; and two jets in proton-proton collisions at √&lt;em&gt;s&lt;/em&gt; = 13 TeV and constraints on anomalous quartic gauge couplings

Tumasyan, A.; Adam, W.; Andrejkovic, J.W.; Bergauer, T.; Chatterjee, S.; Dragicevic, M.; Escalante Del Valle, A.; Frühwirth, R.; Jeitler, M.; Krammer, N.; Caminada, L.; Ebrahimi, A.; Erdmann, W.; Horisberger, R.; Ingram, Q.; Kaestli, H.C.; Kotlinski, D.; Langenegger, U.; Missiroli, M.; Rohe, T.; Vetens, W.

doi:10.1103/PhysRevD.104.072001

Measurement of the electroweak production of Zγ and two jets in proton-proton collisions at √s = 13 TeV and constraints on anomalous quartic gauge couplings

Tumasyan A, Adam W, Andrejkovic JW, Bergauer T, Chatterjee S, Dragicevic M, Escalante Del Valle A, Frühwirth R, Jeitler M, Krammer N, Caminada L, Ebrahimi A, Erdmann W, Horisberger R, Ingram Q, Kaestli HC, Kotlinski D, Langenegger U, Missiroli M, Rohe T, Vetens W, et al.

Citation

Tumasyan, A., Adam, W., Andrejkovic, J. W., Bergauer, T., Chatterjee, S., Dragicevic, M., … Vetens, W. (2021). Measurement of the electroweak production of Zγ and two jets in proton-proton collisions at √s = 13 TeV and constraints on anomalous quartic gauge couplings. Physical Review D: Particles and fields, 104(7), 072001 (29 pp.). https://doi.org/10.1103/PhysRevD.104.072001

Persistent URL https://www.dora.lib4ri.ch/psi/islandora/object/psi:39134

The first observation of the electroweak (EW) production of a Z boson, a photon, and two forward jets (Zγjj) in proton-proton collisions at a center-of-mass energy of 13 TeV is presented. A data set corresponding to an integrated luminosity of 137 fb^-1, collected by the CMS experiment at the LHC in 2016-2018 is used. The measured fiducial cross section for EW Zγjj is σ_EW = 5.21 ± 0.52(stat) ± 0.56(syst) fb = 5.21 ± 0.76 fb. Single-differential cross sections in photon, leading lepton, and leading jet transverse momenta, and double-differential cross sections in m_jj and |Δη_jj| are also measured. Exclusion limits on anomalous quartic gauge couplings are derived at 95% confidence level in terms of the effective field theory operators M₀ to M₅, M₇, T₀ to T₂, and T₅ to T₉.

Details

Publication Type

Journal Article

Title

Measurement of the electroweak production of Zγ and two jets in proton-proton collisions at √s = 13 TeV and constraints on anomalous quartic gauge couplings

Author(s)

Tumasyan, A.

Adam, W.

Andrejkovic, J.W.

Bergauer, T.

Chatterjee, S.

Dragicevic, M.

Escalante Del Valle, A.

Frühwirth, R.

Jeitler, M.

Krammer, N.

Caminada, L. (3202 High Energy Particle Physics)