scholarly journals Dark matter from electroweak single top production

2018 ◽  
Vol 98 (1) ◽  
Author(s):  
Tilman Plehn ◽  
Jennifer M. Thompson ◽  
Susanne Westhoff
Keyword(s):  
Dark Matter ◽  
Single Top

scholarly journals Single-top final states as a probe of top-flavoured dark matter models at the LHC

2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
Monika Blanke ◽  
Priscilla Pani ◽  
Giacomo Polesello ◽  
Giulia Rovelli
Keyword(s):  
Dark Matter ◽  
Top Quark ◽  
Direct Detection ◽  
Final States ◽  
High Luminosity ◽  
Minimal Flavour Violation ◽  
Single Top ◽  
Discovery Potential ◽  
Flavour Violation ◽  
Flavour Physics

Abstract Models incorporating flavoured dark matter provide an elegant solution to the dark matter problem, evading the tight LHC and direct direction constraints on simple WIMP models. In Dark Minimal Flavour Violation, a simple framework of flavoured dark matter with new sources of flavour violation, the constraints from thermal freeze-out, direct detection experiments, and flavour physics create well-defined benchmark scenarios for these models. We study the LHC phenomenology of four such scenarios, focusing on final states where a single top quark is produced accompanied by no jets, one jet from the fragmentation of light quarks or a b-tagged jet. For each of these signatures we develop a realistic LHC analysis, and we show that the proposed analyses would increase the parameter space coverage for the four benchmarks, compared to existing flavour-conserving LHC analyses. Finally we show the projected discovery potential of the considered signatures for the full LHC statistics at 14 TeV, and for the High Luminosity LHC.

scholarly journals Single top quarks and dark matter

2017 ◽  
Vol 96 (3) ◽  
Author(s):  
Deborah Pinna ◽  
Alberto Zucchetta ◽  
Matthew R. Buckley ◽  
Florencia Canelli
Keyword(s):  
Dark Matter ◽  
Top Quarks ◽  
Single Top

scholarly journals Search for dark matter produced in association with a single top quark in $$\sqrt{s}=13$$ TeV $$pp$$ collisions with the ATLAS detector

2021 ◽  
Vol 81 (10) ◽  
Author(s):  
G. Aad ◽  
B. Abbott ◽  
D. C. Abbott ◽  
A. Abed Abud ◽  
K. Abeling ◽  
...  
Keyword(s):  
Dark Matter ◽  
Top Quark ◽  
Higgs Doublet ◽  
Proton Collision ◽  
Proton Proton ◽  
Missing Transverse Momentum ◽  
Single Top ◽  
Proton Proton Collision ◽  
Charged Leptons ◽  
Two Higgs Doublet Model

AbstractThis paper presents a search for dark matter in the context of a two-Higgs-doublet model together with an additional pseudoscalar mediator, a, which decays into the dark-matter particles. Processes where the pseudoscalar mediator is produced in association with a single top quark in the 2HDM+a model are explored for the first time at the LHC. Several final states which include either one or two charged leptons (electrons or muons) and a significant amount of missing transverse momentum are considered. The analysis is based on proton–proton collision data collected with the ATLAS experiment at $$\sqrt{s} = 13$$ s = 13  TeV during LHC Run 2 (2015–2018), corresponding to an integrated luminosity of 139 $$\hbox {fb}^{-1}$$ fb - 1 . No significant excess above the Standard Model predictions is found. The results are expressed as 95% confidence-level limits on the parameters of the signal models considered.

scholarly journals Search for a Dark Matter Candidate Produced in Association with a Single Top Quark inpp¯Collisions ats=1.96  TeV

2012 ◽  
Vol 108 (20) ◽  
Author(s):  
T. Aaltonen ◽  
B. Álvarez González ◽  
S. Amerio ◽  
D. Amidei ◽  
A. Anastassov ◽  
...  
Keyword(s):  
Dark Matter ◽  
Top Quark ◽  
Dark Matter Candidate ◽  
Single Top
Sign in / Sign up

Export Citation Format

Share Document