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Studying the sensitivity of the ATLAS mono(H-bb) + missing transverse momentum search for a Dark Higgs signal

Madsen, David LU (2018) FYSK02 20172
Particle and nuclear physics
Department of Physics
Abstract
Dark Matter is one of the biggest mysteries in physics of our time, with an overwhelming amount of evidence for its existence but lack of direct observation (at time of writing). The focus of this thesis is to reimplement an ATLAS analysis used for Dark Matter searches in the mono-H(bb) channel, and use that analysis in order to study the signal of a new particle called Dark Higgs. The Dark Higgs comes from assuming that Dark Matter particles acquire their mass in the same manner as Standard Model particles i.e via a Higgs mechanism in the dark sector. The signal samples used for this analysis are generated with a Monte Carlo simulation at truth level. The analysis was implemented in Rivet version 2.5.4 and the results produced show that... (More)
Dark Matter is one of the biggest mysteries in physics of our time, with an overwhelming amount of evidence for its existence but lack of direct observation (at time of writing). The focus of this thesis is to reimplement an ATLAS analysis used for Dark Matter searches in the mono-H(bb) channel, and use that analysis in order to study the signal of a new particle called Dark Higgs. The Dark Higgs comes from assuming that Dark Matter particles acquire their mass in the same manner as Standard Model particles i.e via a Higgs mechanism in the dark sector. The signal samples used for this analysis are generated with a Monte Carlo simulation at truth level. The analysis was implemented in Rivet version 2.5.4 and the results produced show that even without dedicated optimization, the analysis exhibits a certain sensitivity, however there is lots of room for improvement. (Less)
Please use this url to cite or link to this publication:
author
Madsen, David LU
supervisor
organization
course
FYSK02 20172
year
type
M2 - Bachelor Degree
subject
keywords
Dark Higgs
language
English
id
8938880
date added to LUP
2018-04-25 11:16:29
date last changed
2018-04-25 11:16:29
@misc{8938880,
  abstract     = {{Dark Matter is one of the biggest mysteries in physics of our time, with an overwhelming amount of evidence for its existence but lack of direct observation (at time of writing). The focus of this thesis is to reimplement an ATLAS analysis used for Dark Matter searches in the mono-H(bb) channel, and use that analysis in order to study the signal of a new particle called Dark Higgs. The Dark Higgs comes from assuming that Dark Matter particles acquire their mass in the same manner as Standard Model particles i.e via a Higgs mechanism in the dark sector. The signal samples used for this analysis are generated with a Monte Carlo simulation at truth level. The analysis was implemented in Rivet version 2.5.4 and the results produced show that even without dedicated optimization, the analysis exhibits a certain sensitivity, however there is lots of room for improvement.}},
  author       = {{Madsen, David}},
  language     = {{eng}},
  note         = {{Student Paper}},
  title        = {{Studying the sensitivity of the ATLAS mono(H-bb) + missing transverse momentum search for a Dark Higgs signal}},
  year         = {{2018}},
}