Search for dark matter produced in association with heavy-flavor quark pairs in proton-proton collisions at √s=13TeV

CMS Collaboration

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

A search is presented for an excess of events with heavy-flavor quark pairs (tt¯ and bb¯) and a large imbalance in transverse momentum in data from proton–proton collisions at a center-of-mass energy of 13TeV. The data correspond to an integrated luminosity of 2.2fb-1 collected with the CMS detector at the CERN LHC. No deviations are observed with respect to standard model predictions. The results are used in the first interpretation of dark matter production in tt¯ and bb¯ final states in a simplified model. This analysis is also the first to perform a statistical combination of searches for dark matter produced with different heavy-flavor final states. The combination provides exclusions that are stronger than those achieved with individual heavy-flavor final states.

Original languageEnglish
Article number845
JournalEuropean Physical Journal C
Volume77
Issue number12
DOIs
Publication statusPublished - 1 Dec 2017
Externally publishedYes

Fingerprint

Flavors
dark matter
Protons
quarks
collisions
protons
exclusion
transverse momentum
center of mass
Luminance
Momentum
luminosity
Detectors
deviation
detectors
predictions
energy

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Physics and Astronomy (miscellaneous)

Cite this

Search for dark matter produced in association with heavy-flavor quark pairs in proton-proton collisions at √s=13TeV. / CMS Collaboration.

In: European Physical Journal C, Vol. 77, No. 12, 845, 01.12.2017.

Research output: Contribution to journalArticle

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abstract = "A search is presented for an excess of events with heavy-flavor quark pairs (tt¯ and bb¯) and a large imbalance in transverse momentum in data from proton–proton collisions at a center-of-mass energy of 13TeV. The data correspond to an integrated luminosity of 2.2fb-1 collected with the CMS detector at the CERN LHC. No deviations are observed with respect to standard model predictions. The results are used in the first interpretation of dark matter production in tt¯ and bb¯ final states in a simplified model. This analysis is also the first to perform a statistical combination of searches for dark matter produced with different heavy-flavor final states. The combination provides exclusions that are stronger than those achieved with individual heavy-flavor final states.",
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AU - CMS Collaboration

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Asilar, E.

AU - Bergauer, T.

AU - Brandstetter, J.

AU - Brondolin, E.

AU - Dragicevic, M.

AU - Erö, J.

AU - Flechl, M.

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AU - Hartl, C.

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AU - Hrubec, J.

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AU - Rahbaran, B.

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AU - Schieck, J.

AU - Strauss, J.

AU - Waltenberger, W.

AU - Wulz, C. E.

AU - Chekhovsky, V.

AU - Mossolov, V.

AU - Gonzalez, J. Suarez

AU - Shumeiko, N.

AU - Alderweireldt, S.

AU - De Wolf, E. A.

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AU - Van Mechelen, P.

AU - Van Remortel, N.

AU - Van Spilbeeck, A.

AU - Zeid, S. Abu

AU - Blekman, F.

AU - D’Hondt, J.

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AU - Deroover, K.

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