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Measurement of the Drell-Yan forward-backward asymmetry at high dilepton masses in proton-proton collisions at √s = 13 TeV

Journal articles  - Journal Article
Tumasyan, A; Adam, W; Andrejkovic, JW; Bergauer, T; Chatterjee, S; Damanakis, K; Dragicevic, M; Escalante Del Valle, A; Frühwirth, R; Jeitler, M ...
Published in: Journal of High Energy Physics
August 1, 2022
Published version (DOI)

A measurement of the forward-backward asymmetry of pairs of oppositely charged leptons (dimuons and dielectrons) produced by the Drell-Yan process in proton-proton collisions is presented. The data sample corresponds to an integrated luminosity of 138 fb−1 collected with the CMS detector at the LHC at a center-of-mass energy of 13 TeV. The asymmetry is measured as a function of lepton pair mass for masses larger than 170 GeV and compared with standard model predictions. An inclusive measurement across both channels and the full mass range yields an asymmetry of 0.612 ± 0.005 (stat) ± 0.007 (syst). As a test of lepton flavor universality, the difference between the dimuon and dielectron asymmetries is measured as well. No statistically significant deviations from standard model predictions are observed. The measurements are used to set limits on the presence of additional gauge bosons. For a Z′ boson in the sequential standard model the observed (expected) 95% confidence level lower limit on the Z′ mass is 4.4 TeV (3.7 TeV). [Figure not available: see fulltext.]

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Seog Oh
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Published In

Journal of High Energy Physics

DOI

10.1007/JHEP08(2022)063

EISSN

1029-8479

Publication Date

August 1, 2022

Volume

2022

Issue

8

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5106 Nuclear and plasma physics
  • 4902 Mathematical physics
 

Citation

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Tumasyan, A., Adam, W., Andrejkovic, J. W., Bergauer, T., Chatterjee, S., Damanakis, K., … Hensel, C. (2022). Measurement of the Drell-Yan forward-backward asymmetry at high dilepton masses in proton-proton collisions at √s = 13 TeV. Journal of High Energy Physics, 2022(8). https://doi.org/10.1007/JHEP08(2022)063
Tumasyan, A., W. Adam, J. W. Andrejkovic, T. Bergauer, S. Chatterjee, K. Damanakis, M. Dragicevic, et al. “Measurement of the Drell-Yan forward-backward asymmetry at high dilepton masses in proton-proton collisions at √s = 13 TeV.” Journal of High Energy Physics 2022, no. 8 (August 1, 2022). https://doi.org/10.1007/JHEP08(2022)063.
Tumasyan A, Adam W, Andrejkovic JW, Bergauer T, Chatterjee S, Damanakis K, et al. Measurement of the Drell-Yan forward-backward asymmetry at high dilepton masses in proton-proton collisions at √s = 13 TeV. Journal of High Energy Physics. 2022 Aug 1;2022(8).
Tumasyan, A., et al. “Measurement of the Drell-Yan forward-backward asymmetry at high dilepton masses in proton-proton collisions at √s = 13 TeV.” Journal of High Energy Physics, vol. 2022, no. 8, Aug. 2022. Scopus, doi:10.1007/JHEP08(2022)063.
Tumasyan A, Adam W, Andrejkovic JW, Bergauer T, Chatterjee S, Damanakis K, Dragicevic M, Escalante Del Valle A, Frühwirth R, Jeitler M, Krammer N, Lechner L, Liko D, Mikulec I, Paulitsch P, Pitters FM, Schieck J, Schöfbeck R, Schwarz D, Templ S, Waltenberger W, Wulz CE, Makarenko V, Nechaeva T, Yevarouskaya U, Darwish MR, De Wolf EA, Janssen T, Kello T, Lelek A, Rejeb Sfar H, Van Mechelen P, Van Putte S, Van Remortel N, Bols ES, D’Hondt J, De Moor A, Delcourt M, El Faham H, Lowette S, Moortgat S, Morton A, Müller D, Sahasransu AR, Tavernier S, Van Doninck W, Vannerom D, Beghin D, Bilin B, Clerbaux B, De Lentdecker G, Favart L, Kalsi AK, Lee K, Mahdavikhorrami M, Makarenko I, Moureaux L, Paredes S, Pétré L, Popov A, Postiau N, Starling E, Thomas L, Vanden Bemden M, Vander Velde C, Vanlaer P, Cornelis T, Dobur D, Knolle J, Lambrecht L, Mestdach G, Niedziela M, Rendón C, Roskas C, Samalan A, Skovpen K, Tytgat M, Vermassen B, Wezenbeek L, Benecke A, Bethani A, Bruno G, Bury F, Caputo C, David P, Delaere C, Donertas IS, Giammanco A, Jaffel K, Jain S, Lemaitre V, Mondal K, Prisciandaro J, Taliercio A, Teklishyn M, Tran TT, Vischia P, Wertz S, Alves GA, Hensel C. Measurement of the Drell-Yan forward-backward asymmetry at high dilepton masses in proton-proton collisions at √s = 13 TeV. Journal of High Energy Physics. 2022 Aug 1;2022(8).
Journal cover image

Published In

Journal of High Energy Physics

DOI

10.1007/JHEP08(2022)063

EISSN

1029-8479

Publication Date

August 1, 2022

Volume

2022

Issue

8

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5106 Nuclear and plasma physics
  • 4902 Mathematical physics