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Search for a heavy vector resonance decaying to a Z  boson and a Higgs boson in proton-proton collisions at s = 13 Te .

Journal articles  - Journal Article
Sirunyan, AM; Tumasyan, A; Adam, W; Bergauer, T; Dragicevic, M; Erö, J; Valle, AED; Frühwirth, R; Jeitler, M; Krammer, N; Lechner, L; Liko, D ...
Published in: The European physical journal. C, Particles and fields
January 2021

A search is presented for a heavy vector resonance decaying into a Z boson and the standard model Higgs boson, where the Z boson is identified through its leptonic decays to electrons, muons, or neutrinos, and the Higgs boson is identified through its hadronic decays. The search is performed in a Lorentz-boosted regime and is based on data collected from 2016 to 2018 at the CERN LHC, corresponding to an integrated luminosity of 137 fb - 1 . Upper limits are derived on the production of a narrow heavy resonance Z ' , and a mass below 3.5 and 3.7 Te is excluded at 95% confidence level in models where the heavy vector boson couples predominantly to fermions and to bosons, respectively. These are the most stringent limits placed on the Heavy Vector Triplet Z ' model to date. If the heavy vector boson couples exclusively to standard model bosons, upper limits on the product of the cross section and branching fraction are set between 23 and 0.3 fb for a Z ' mass between 0.8 and 4.6 Te , respectively. This is the first limit set on a heavy vector boson coupling exclusively to standard model bosons in its production and decay.

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Published In

The European physical journal. C, Particles and fields

DOI

EISSN

1434-6052

ISSN

1434-6044

Publication Date

January 2021

Volume

81

Issue

8

Start / End Page

688

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5102 Atomic, molecular and optical physics
  • 5101 Astronomical sciences
 

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Sirunyan, A. M., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Erö, J., … Malara, A. (2021). Search for a heavy vector resonance decaying to a Z  boson and a Higgs boson in proton-proton collisions at s = 13 Te . The European Physical Journal. C, Particles and Fields, 81(8), 688. https://doi.org/10.1140/epjc/s10052-021-09348-6
Sirunyan, A. M., A. Tumasyan, W. Adam, T. Bergauer, M. Dragicevic, J. Erö, A Escalante Del Valle, et al. “Search for a heavy vector resonance decaying to a Z  boson and a Higgs boson in proton-proton collisions at s = 13 Te .The European Physical Journal. C, Particles and Fields 81, no. 8 (January 2021): 688. https://doi.org/10.1140/epjc/s10052-021-09348-6.
Sirunyan AM, Tumasyan A, Adam W, Bergauer T, Dragicevic M, Erö J, et al. Search for a heavy vector resonance decaying to a Z  boson and a Higgs boson in proton-proton collisions at s = 13 Te . The European physical journal C, Particles and fields. 2021 Jan;81(8):688.
Sirunyan, A. M., et al. “Search for a heavy vector resonance decaying to a Z  boson and a Higgs boson in proton-proton collisions at s = 13 Te .The European Physical Journal. C, Particles and Fields, vol. 81, no. 8, Jan. 2021, p. 688. Epmc, doi:10.1140/epjc/s10052-021-09348-6.
Sirunyan AM, Tumasyan A, Adam W, Bergauer T, Dragicevic M, Erö J, Valle AED, Frühwirth R, Jeitler M, Krammer N, Lechner L, Liko D, Mikulec I, Pitters FM, Rad N, Schieck J, Schöfbeck R, Spanring M, Templ S, Waltenberger W, Wulz C-E, Zarucki M, Chekhovsky V, Litomin A, Makarenko V, Gonzalez JS, Darwish MR, De Wolf EA, Di Croce D, Janssen X, Kello T, Lelek A, Pieters M, Sfar HR, Van Haevermaet H, Van Mechelen P, Van Putte S, Van Remortel N, Blekman F, Bols ES, Chhibra SS, D’Hondt J, De Clercq J, Lontkovskyi D, Lowette S, Marchesini I, Moortgat S, Morton A, Müller D, Python Q, Tavernier S, Van Doninck W, Van Mulders P, Beghin D, Bilin B, Clerbaux B, De Lentdecker G, Dorney B, Favart L, Grebenyuk A, Kalsi AK, Makarenko I, Moureaux L, Pétré L, Popov A, Postiau N, Starling E, Thomas L, Vander Velde C, Vanlaer P, Vannerom D, Wezenbeek L, Cornelis T, Dobur D, Gruchala M, Khvastunov I, Niedziela M, Roskas C, Skovpen K, Tytgat M, Verbeke W, Vermassen B, Vit M, Bruno G, Bury F, Caputo C, David P, 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Missiroli M, Mnich J, Mussgiller A, Myronenko V, Otarid Y, Adán DP, Pflitsch SK, Pitzl D, Raspereza A, Saggio A, Saibel A, Savitskyi M, Scheurer V, Schwanenberger C, Singh A, Ricardo RES, Tonon N, Turkot O, Vagnerini A, Van De Klundert M, Walsh R, Walter D, Wen Y, Wichmann K, Wissing C, Wuchterl S, Zenaiev O, Zlebcik R, Aggleton R, Bein S, Benato L, Benecke A, De Leo K, Dreyer T, Ebrahimi A, Eich M, Feindt F, Fröhlich A, Garbers C, Garutti E, Gunnellini P, Haller J, Hinzmann A, Karavdina A, Kasieczka G, Klanner R, Kogler R, Kutzner V, Lange J, Lange T, Malara A. Search for a heavy vector resonance decaying to a Z  boson and a Higgs boson in proton-proton collisions at s = 13 Te . The European physical journal C, Particles and fields. 2021 Jan;81(8):688.
Journal cover image

Published In

The European physical journal. C, Particles and fields

DOI

EISSN

1434-6052

ISSN

1434-6044

Publication Date

January 2021

Volume

81

Issue

8

Start / End Page

688

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5102 Atomic, molecular and optical physics
  • 5101 Astronomical sciences