Search for dark matter particles in proton-proton collisions at √s=8 TeV using the razor variables

V. Khachatryan , A.M Sirunyan , A. Tumasyan , Adrian Byszuk , Agnieszka Zagoździńska

Abstract

A search for dark matter particles directly produced in proton-proton collisions recorded by the CMS experiment at the LHC is presented. The data correspond to an integrated luminosity of 18.8 fb−1−1, at a center-of-mass energy of 8 TeV. The event selection requires at least two jets and no isolated leptons. The razor variables are used to quantify the transverse momentum balance in the jet momenta. The study is performed separately for events with and without jets originating from b quarks. The observed yields are consistent with the expected backgrounds and, depending on the nature of the production mechanism, dark matter production at the LHC is excluded at 90% confidence level for a mediator mass scale Λ below 1 TeV. The use of razor variables yields results that complement those previously published.
Collective authorCMS Collaboration
Author V. Khachatryan
V. Khachatryan,,
-
, A.M Sirunyan
A.M Sirunyan,,
-
, A. Tumasyan
A. Tumasyan,,
-
, Adrian Byszuk ISE
Adrian Byszuk,,
- The Institute of Electronic Systems
, Agnieszka Zagoździńska ISE
Agnieszka Zagoździńska,,
- The Institute of Electronic Systems
Total number of authors2287
Journal seriesJournal of High Energy Physics, ISSN 1029-8479 [1126-6708]
Issue year2016
Vol12
No88
Pages1-46
Publication size in sheets2.25
Keywords in EnglishHadron-Hadron scattering (experiments) Supersymmetry
DOIDOI:10.1007/JHEP12(2016)088
URL https://link.springer.com/article/10.1007%2FJHEP12%282016%29088
Languageen angielski
Score (nominal)40
ScoreMinisterial score = 40.0, 06-04-2017, ArticleFromJournal
Ministerial score (2013-2016) = 40.0, 06-04-2017, ArticleFromJournal
Publication indicators WoS Impact Factor: 2016 = 6.063 (2) - 2016=4.992 (5)
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