Bibcode
Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Asilar, E.; Bergauer, T.; Brandstetter, J.; Brondolin, E.; Dragicevic, M.; Erö, J.; Flechl, M.; Friedl, M.; Frühwirth, R.; Ghete, V. M.; Hartl, C.; Hörmann, N.; Hrubec, J.; Jeitler, M.; König, A.; Krätschmer, I.; Liko, D.; Matsushita, T.; Mikulec, I.; Rabady, D.; Rad, N.; Rahbaran, B.; Rohringer, H.; Schieck, J.; Strauss, J.; Waltenberger, W.; Wulz, C.-E.; Dvornikov, O.; Makarenko, V.; Mossolov, V.; Suarez Gonzalez, J.; Zykunov, V.; Shumeiko, N.; Alderweireldt, S.; De Wolf, E. A.; Janssen, X.; Lauwers, J.; Van De Klundert, M.; Van Haevermaet, H.; Van Mechelen, P.; Van Remortel, N.; Van Spilbeeck, A.; Abu Zeid, S.; Blekman, F.; D'Hondt, J.; Daci, N.; De Bruyn, I.; Deroover, K.; Lowette, S.; Moortgat, S.; Moreels, L.; Olbrechts, A.; Python, Q.; Skovpen, K.; Tavernier, S.; Van Doninck, W.; Van Mulders, P.; Van Parijs, I.; Brun, H.; Clerbaux, B.; De Lentdecker, G.; Delannoy, H.; Fasanella, G.; Favart, L.; Goldouzian, R.; Grebenyuk, A.; Karapostoli, G.; Lenzi, T.; Léonard, A.; Luetic, J.; Maerschalk, T.; Marinov, A.; Randle-conde, A.; Seva, T.; Vander Velde, C.; Vanlaer, P.; Vannerom, D.; Yonamine, R.; Zenoni, F.; Zhang, F.; Cornelis, T.; Dobur, D.; Fagot, A.; Gul, M.; Khvastunov, I.; Poyraz, D.; Salva, S.; Schöfbeck, R.; Tytgat, M.; Van Driessche, W.; Yazgan, E.; Zaganidis, N.; Bakhshiansohi, H.; Beluffi, C.; Bondu, O.; Brochet, S.; Bruno, G. et al.
Bibliographical reference
Journal of High Energy Physics, Volume 2017, Issue 7, article id.14, 50 pp.
Advertised on:
7
2017
Citations
112
Refereed citations
110
Description
A search for dark matter particles is performed using events with large
missing transverse momentum, at least one energetic jet, and no leptons,
in proton-proton collisions at √{s}=13 TeV collected with the CMS
detector at the LHC. The data sample corresponds to an integrated
luminosity of 12.9 fb-1. The search includes events with jets
from the hadronic decays of a W or Z boson. The data are found to be in
agreement with the predicted background contributions from standard
model processes. The results are presented in terms of simplified models
in which dark matter particles are produced through interactions
involving a vector, axial-vector, scalar, or pseudoscalar mediator.
Vector and axial-vector mediator particles with masses up to 1.95 TeV,
and scalar and pseudoscalar mediator particles with masses up to 100 and
430 GeV respectively, are excluded at 95% confidence level. The results
are also interpreted in terms of the invisible decays of the Higgs
boson, yielding an observed (expected) 95% confidence level upper limit
of 0.44 (0.56) on the corresponding branching fraction. The results of
this search provide the strongest constraints on the dark matter pair
production cross section through vector and axial-vector mediators at a
particle collider. When compared to the direct detection experiments,
the limits obtained from this search provide stronger constraints for
dark matter masses less than 5, 9, and 550 GeV, assuming vector, scalar,
and axial-vector mediators, respectively. The search yields stronger
constraints for dark matter masses less than 200 GeV, assuming a
pseudoscalar mediator, when compared to the indirect detection results
from Fermi-LAT.