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| CMS-PAS-SUS-23-008 | ||
| Search for dark matter produced in association with a pair of bottom quarks in proton-proton collisions at $ \sqrt{s}= $ 13 TeV | ||
| CMS Collaboration | ||
| 2 April 2024 | ||
| Abstract: A search for dark matter (DM) particles produced in association with bottom quarks is presented. The analysis uses proton-proton collision data at a center-of-mass energy of $ \sqrt{s}= $ 13 TeV, corresponding to an integrated luminosity of 138 fb$ ^{-1} $. The search is performed in the final state with large missing transverse momentum and a pair of jets originated from bottom quarks. No significant excess of data is observed with respect to the standard model expectation. Limits are set on the DM production cross section in the context of two Higgs doublet models with an additional light pseudoscalar (2HDM+a). This is the first search at the LHC to probe DM produced in association with two nonresonant b quarks in 2HDM+a. Sensitivity to the parameter space with tan$ \beta \leq $ 15 is achieved, capitalizing on the enhancement of couplings between pseudoscalars and bottom quarks with $ \tan \beta $. | ||
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Links:
CDS record (PDF) ;
CADI line (restricted) ;
These preliminary results are superseded in this paper, Submitted to JHEP. The superseded preliminary plots can be found here. |
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Compact Muon Solenoid LHC, CERN |
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