Search for dark matter produced in association with heavy-flavor quark pairs in proton-proton collisions at √s=13TeV
Yazarlar (1)
Doç. Dr. Mustafa Numan BAKIRCI Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Makale Türü Açık Erişim Özgün Makale (SCOPUS dergilerinde yayınlanan tam makale)
Dergi Adı European Physical Journal C
Dergi ISSN 1434-6044 Wos Dergi Scopus Dergi
Makale Dili İngilizce Basım Tarihi 12-2017
Cilt / Sayı / Sayfa 77 / 12 / – DOI 10.1140/epjc/s10052-017-5317-4
Makale Linki https://link.springer.com/content/pdf/10.1140%2Fepjc%2Fs10052-017-5317-4.pdf
UAK Araştırma Alanları
Fen Bilimleri ve Matematik
Özet
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. © 2017, CERN for the benefit of the CMS collaboration.
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