Bibcode
Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Ambrogi, F.; Asilar, E.; Bergauer, T.; Brandstetter, J.; Brondolin, E.; Dragicevic, M.; Erö, J.; Escalante Del Valle, A.; Flechl, M.; Friedl, M.; Frühwirth, R.; Ghete, V. M.; Grossmann, J.; Hrubec, J.; Jeitler, M.; König, A.; Krammer, N.; Krätschmer, I.; Liko, D.; Madlener, T.; Mikulec, I.; Pree, E.; Rad, N.; Rohringer, H.; Schieck, J.; Schöfbeck, R.; Spanring, M.; Spitzbart, D.; Taurok, A.; Waltenberger, W.; Wittmann, J.; Wulz, C.-E.; Zarucki, M.; Chekhovsky, V.; Mossolov, V.; Suarez Gonzalez, J.; De Wolf, E. A.; Di Croce, D.; Janssen, X.; Lauwers, J.; Pieters, M.; Van De Klundert, M.; Van Haevermaet, H.; Van Mechelen, P.; Van Remortel, N.; Abu Zeid, S.; Blekman, F.; D'Hondt, J.; De Bruyn, I.; De Clercq, J.; Deroover, K.; Flouris, G.; Lontkovskyi, D.; Lowette, S.; Marchesini, I.; Moortgat, S.; Moreels, L.; Python, Q.; Skovpen, K.; Tavernier, S.; Van Doninck, W.; Van Mulders, P.; Van Parijs, I.; Beghin, D.; Bilin, B.; Brun, H.; Clerbaux, B.; De Lentdecker, G.; Delannoy, H.; Dorney, B.; Fasanella, G.; Favart, L.; Goldouzian, R.; Grebenyuk, A.; Kalsi, A. K.; Lenzi, T.; Luetic, J.; Postiau, N.; Seva, T.; Starling, E.; Vander Velde, C.; Vanlaer, P.; Vannerom, D.; Yonamine, R.; Cornelis, T.; Dobur, D.; Fagot, A.; Gul, M.; Khvastunov, I.; Poyraz, D.; Roskas, C.; Trocino, D.; Tytgat, M.; Verbeke, W.; Vermassen, B.; Vit, M.; Zaganidis, N. et al.
Bibliographical reference
Journal of High Energy Physics, Volume 2018, Issue 6, article id. 127, 54 pp.
Advertised on:
6
2018
Citations
96
Refereed citations
67
Description
A search for a new scalar resonance decaying to a pair of Z bosons is
performed in the mass range from 130 GeV to 3 TeV, and for various width
scenarios. The analysis is based on proton-proton collisions recorded by
the CMS experiment at the LHC in 2016, corresponding to an integrated
luminosity of 35.9 fb-1 at a center-of-mass energy of 13 TeV.
The Z boson pair decays are reconstructed using the 4 ℓ, 2 ℓ2q,
and 2 ℓ2 ν final states, where ℓ = e or μ. Both gluon
fusion and electroweak production of the scalar resonance are
considered, with a free parameter describing their relative cross
sections. A dedicated categorization of events, based on the kinematic
properties of associated jets, and matrix element techniques are
employed for an optimal signal and background separation. A description
of the interference between signal and background amplitudes for a
resonance of an arbitrary width is included. No significant excess of
events with respect to the standard model expectation is observed and
limits are set on the product of the cross section for a new scalar
boson and the branching fraction for its decay to ZZ for a large range
of masses and widths.