7
IRUS Total
Downloads
  Altmetric

Characterising dark matter searches at colliders and direct detection experiments: vector mediators

File Description SizeFormat 
Buchmueller2015_Article_CharacterisingDarkMatterSearch.pdfPublished version1.02 MBAdobe PDFView/Open
Title: Characterising dark matter searches at colliders and direct detection experiments: vector mediators
Authors: Buchmueller, O
Dolan, MJ
Malik, SA
McCabe, C
Item Type: Journal Article
Abstract: We introduce a Minimal Simplified Dark Matter (MSDM) framework to quantitatively characterise dark matter (DM) searches at the LHC. We study two MSDM models where the DM is a Dirac fermion which interacts with a vector and axial-vector mediator. The models are characterised by four parameters: m DM , M med , g DM and g q, the DM and mediator masses, and the mediator couplings to DM and quarks respectively. The MSDM models accurately capture the full event kinematics, and the dependence on all masses and couplings can be systematically studied. The interpretation of mono-jet searches in this framework can be used to establish an equal-footing comparison with direct detection experiments. For theories with a vector mediator, LHC mono-jet searches possess better sensitivity than direct detection searches for light DM masses (≲5 GeV). For axial-vector mediators, LHC and direct detection searches generally probe orthogonal directions in the parameter space. We explore the projected limits of these searches from the ultimate reach of the LHC and multi-ton xenon direct detection experiments, and find that the complementarity of the searches remains. Finally, we provide a comparison of limits in the MSDM and effective field theory (EFT) frameworks to highlight the deficiencies of the EFT framework, particularly when exploring the complementarity of mono-jet and direct detection searches.
Issue Date: 9-Jan-2015
Date of Acceptance: 15-Dec-2014
URI: http://hdl.handle.net/10044/1/60866
DOI: https://dx.doi.org/10.1007/JHEP01(2015)037
ISSN: 1029-8479
Publisher: SPRINGER
Journal / Book Title: JOURNAL OF HIGH ENERGY PHYSICS
Volume: 2015
Issue: 1
Copyright Statement: © 2015 The Author(s). Open Access. This article is distributed under the terms of the Creative Commons Attribution License ( CC-BY 4.0 https://creativecommons.org/licenses/by/4.0/), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
Sponsor/Funder: Science and Technology Facilities Council (STFC)
Funder's Grant Number: ST/K001604/1
Keywords: Science & Technology
Physical Sciences
Physics, Particles & Fields
Physics
Exotics
Beyond Standard Model
Hadron-Hadron Scattering
Particle and resonance production
730 KG DAYS
NUCLEAR RECOIL
LHC
MODEL
LIMIT
RUN
Z'
01 Mathematical Sciences
02 Physical Sciences
Nuclear & Particles Physics
Publication Status: Published
Open Access location: https://link.springer.com/article/10.1007/JHEP01(2015)037
Article Number: ARTN 037
Online Publication Date: 2015-01-09
Appears in Collections:Physics
High Energy Physics