Search for Low-mass Dark Matter with the CRESST-II Experiment PDF Download

Author: Christian Strandhagen
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 263

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Author: Patrick Huff
Publisher: Sudwestdeutscher Verlag Fur Hochschulschriften AG
ISBN: 9783838116204
Category :
Languages : en
Pages : 172

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One of the most important open questions in modern physics is the riddle of the nature of Dark Matter. Observations, e.g. galactic rotation curves, show that about a quarter of the mass in the universe is in form of Dark Matter. These, up to now only indirect, observations are the main motivation for direct Dark Matter search experiments as CRESST-II, which aim to identify the nature of Dark Matter. CRESST-II is searching directly for Dark Matter in the form of hypothetical WIMPs. Within the framework of this work the functional principles of the CRESST-II detector modules are analyzed and discussed. Therefor the parameters have been identified which determine their sensitivity and the understanding of their behavior has been developed in detail.

Author: Enrico Morgante
Publisher: Springer
ISBN: 3319676067
Category : Science
Languages : en
Pages : 223

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This thesis covers several theoretical aspects of WIMP (weakly interacting massive particles) dark matter searches, with a particular emphasis on colliders. It mainly focuses on the use of effective field theories as a tool for Large Hadron Collider (LHC) searches, discussing in detail the issue of their validity, and on simplified dark matter models, which are receiving a growing attention from the physics community. It highlights the theoretical consistency of simplified models, which is essential in order to correctly exploit their potential and for them to be a common reference when comparing results from different experiments. This thesis is of interest to researchers (both theorists and experimentalists) in the field of dark matter searches, and offers a comprehensive introduction to dark matter and to WIMP searches for students and non-experts.

Author: Ruth Pöttgen
Publisher: Springer
ISBN: 3319410458
Category : Science
Languages : en
Pages : 325

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This thesis describes in detail a search for weakly interacting massive particles as possible dark matter candidates, making use of so-called mono-jet events. It includes a detailed description of the run-1 system, important operational challenges, and the upgrade for run-2. The nature of dark matter, which accounts for roughly 25% of the energy-matter content of the universe, is one of the biggest open questions in fundamental science. The analysis is based on the full set of proton-proton collisions collected by the ATLAS experiment at the Large Hadron Collider at √s = 8 TeV. Special attention is given to the experimental challenges and analysis techniques, as well as the overall scientific context beyond particle physics. The results complement those of non-collider experiments and yield some of the strongest exclusion bounds on parameters of dark matter models by the end of the Large Hadron Collider run-1. Details of the upgrade of the ATLAS Central Trigger for run-2 are also included.

Author: Rafael Florian Lang
Publisher:
ISBN:
Category :
Languages : en
Pages : 268

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Author: Johanna Gramling
Publisher: Springer
ISBN: 3319950169
Category : Science
Languages : en
Pages : 290

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This book discusses searches for Dark Matter at the CERN’s LHC, the world’s most powerful accelerator. It introduces the relevant theoretical framework and includes an in-depth discussion of the Effective Field Theory approach to Dark Matter production and its validity, as well as an overview of the formalism of Simplified Dark Matter models. Despite overwhelming astrophysical evidence for Dark Matter and numerous experimental efforts to detect it, the nature of Dark Matter still remains a mystery and has become one of the hottest research topics in fundamental physics. Two searches for Dark Matter are presented, performed on data collected with the ATLAS experiment. They analyze missing-energy final states with a jet or with top quarks. The analyses are explained in detail, and the outcomes and their interpretations are discussed, also in view of the precedent analysis of theoretical approaches. Given its depth of coverage, the book represents an excellent reference guide for all physicists interested in understanding the theoretical and experimental considerations relevant to Dark Matter searches at the LHC.

Author: Steven Schramm
Publisher: Springer
ISBN: 3319444530
Category : Science
Languages : en
Pages : 341

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This thesis describes the search for Dark Matter at the LHC in the mono-jet plus missing transverse momentum final state, using the full dataset recorded in 2012 by the ATLAS Experiment. It is the first time that the number of jets is not explicitly restricted to one or two, thus increasing the sensitivity to new signals. Instead, a balance between the most energetic jet and the missing transverse momentum is required, thus selecting mono-jet-like final states. Collider searches for Dark Matter have typically used signal models employing effective field theories (EFTs), even when comparing to results from direct and indirect detection experiments, where the difference in energy scale renders many such comparisons invalid. The thesis features the first robust and comprehensive treatment of the validity of EFTs in collider searches, and provides a means by which the different classifications of Dark Matter experiments can be compared on a sound and fair basis.

Author: Monica Sisti
Publisher:
ISBN: 9783897910508
Category :
Languages : en
Pages : 111

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Author: David Craig Moore
Publisher:
ISBN:
Category : Dark matter (Astronomy)
Languages : en
Pages : 488

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