A fiducial cross section for W gamma production in proton-proton collisions is measured at a center-of-mass energy of 13 TeV in 137 fb(-1) of data collected using the CMS detector at the LHC. The W -> e nu and mu nu decay modes are used in a maximum-likelihood fit to the lepton-photon invariant mass distribution to extract the combined cross section. The measured cross section is compared with theoretical expectations at next-to-leading order in quantum chromodynamics. In addition, 95% confidence level intervals are reported for anomalous triple-gauge couplings within the framework of effective field theory.

Measurement of the Wγ Production Cross Section in Proton-Proton Collisions at s=13  TeV and Constraints on Effective Field Theory Coefficients / Sirunyan, A. M., Tumasyan, A., Adam, W., Andrejkovic, J. W., Bergauer, T., Chatterjee, S., Dragicevic, M., Escalante Del Valle, A., Frühwirth, R., Jeitler, M., Krammer, N., Lechner, L., Liko, D., Mikulec, I., Pitters, F. M., Schieck, J., Schöfbeck, R., Spanring, M., Templ, S., Waltenberger, W., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 126:25(2021). [10.1103/physrevlett.126.252002]

Measurement of the Wγ Production Cross Section in Proton-Proton Collisions at s=13  TeV and Constraints on Effective Field Theory Coefficients

Creanza, D.;De Filippis, N.;Iaselli, G.;Pugliese, G.;Simone, F.  M.;
2021

Abstract

A fiducial cross section for W gamma production in proton-proton collisions is measured at a center-of-mass energy of 13 TeV in 137 fb(-1) of data collected using the CMS detector at the LHC. The W -> e nu and mu nu decay modes are used in a maximum-likelihood fit to the lepton-photon invariant mass distribution to extract the combined cross section. The measured cross section is compared with theoretical expectations at next-to-leading order in quantum chromodynamics. In addition, 95% confidence level intervals are reported for anomalous triple-gauge couplings within the framework of effective field theory.
2021
Measurement of the Wγ Production Cross Section in Proton-Proton Collisions at s=13  TeV and Constraints on Effective Field Theory Coefficients / Sirunyan, A. M., Tumasyan, A., Adam, W., Andrejkovic, J. W., Bergauer, T., Chatterjee, S., Dragicevic, M., Escalante Del Valle, A., Frühwirth, R., Jeitler, M., Krammer, N., Lechner, L., Liko, D., Mikulec, I., Pitters, F. M., Schieck, J., Schöfbeck, R., Spanring, M., Templ, S., Waltenberger, W., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 126:25(2021). [10.1103/physrevlett.126.252002]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11589/276830
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