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Search for Inelastic Dark Matter in Events with Two Displaced Muons and Missing Transverse Momentum in Proton-Proton Collisions at √s=13 TeV

  • A. Hayrapetyan
  • , A. Tumasyan
  • , W. Adam
  • , J. W. Andrejkovic
  • , T. Bergauer
  • , S. Chatterjee
  • , K. Damanakis
  • , M. Dragicevic
  • , A. Escalante Del Valle
  • , P. S. Hussain
  • , M. Jeitler
  • , N. Krammer
  • , D. Liko
  • , I. Mikulec
  • , J. Schieck
  • , R. Schöfbeck
  • , D. Schwarz
  • , M. Sonawane
  • , S. Templ
  • , W. Waltenberger
  • C. E. Wulz, M. R. Darwish, T. Janssen, P. Van Mechelen, E. S. Bols, J. D’Hondt, S. Dansana, A. De Moor, M. Delcourt, H. El Faham, S. Lowette, I. Makarenko, A. Morton, D. Müller, A. R. Sahasransu, S. Tavernier, M. Tytgat, S. Van Putte, D. Vannerom, B. Clerbaux, G. De Lentdecker, L. Favart, D. Hohov, J. Jaramillo, A. Khalilzadeh, K. Lee, M. Mahdavikhorrami, A. Malara, S. Paredes, L. Pétré, N. Postiau, L. Thomas, M. Vanden Bemden, C. Vander Velde, P. Vanlaer, M. De Coen, D. Dobur, J. Knolle, L. Lambrecht, G. Mestdach, C. Rendón, A. Samalan, K. Skovpen, N. Van Den Bossche, L. Wezenbeek, A. Benecke, G. Bruno, C. Caputo, C. Delaere, I. S. Donertas, A. Giammanco, K. Jaffel, Sa Jain, V. Lemaitre, J. Lidrych, P. Mastrapasqua, K. Mondal, T. T. Tran, S. Wertz, G. A. Alves, E. Coelho, C. Hensel, T. Menezes De Oliveira, A. Moraes, P. Rebello Teles, M. Soeiro, W. L. Aldá, M. Alves Gallo Pereira, M. Barroso Ferreira Filho, H. Brandao Malbouisson, W. Carvalho, J. Chinellato, E. M. Da Costa, G. G. Da Silveira, D. De Jesus Damiao, S. Fonseca De Souza, J. Martins, C. Mora Herrera, K. Mota Amarilo, L. Mundim, Normunds Ralfs Strautnieks (Member of the Working Group)
  • Institute of Chemical Physics
  • A. Alikhanian Yerevan Institute of Physics
  • TU Wien
  • University of Antwerp
  • Vrije Universiteit Brussel
  • Ghent University
  • Université libre de Bruxelles
  • Université catholique de Louvain
  • Centro Brasileiro de Pesquisas Físicas

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

A search for dark matter in events with a displaced nonresonant muon pair and missing transverse momentum is presented. The analysis is performed using an integrated luminosity of 138 fb-1 of protonproton (pp) collision data at a center-of-mass energy of 13 TeV produced by the LHC in 2016.2018. No significant excess over the predicted backgrounds is observed. Upper limits are set on the product of the inelastic dark matter production cross section σ(pp → A′ → χ1χ2) and the decay branching fraction ℬ(χ2 → χ1μ+μ-), where A′ is a dark photon and +++χ1 and χ2 are states in the dark sector with near mass degeneracy. This is the first dedicated collider search for inelastic dark matter.

Original languageEnglish
Article number041802
Pages (from-to)1-21
JournalPhysical Review Letters
Volume132
Issue number4
DOIs
Publication statusPublished - 26 Jan 2024

OECD Field of Science

  • 1.3 Physical Sciences

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