onr:"swepub:oai:DiVA.org:uu-242491"
Search: onr:"swepub:oai:DiVA.org:uu-242491" > Searches for a Char...
- 1 of 1
- Previous record
- Next record
- To hitlist
Searches for a Charged Higgs Boson in ATLAS and Development of Novel Technology for Future Particle Detector Systems
-
- Pelikan, Daniel, 1985- (author)
- Uppsala universitet,Högenergifysik
-
- Brenner, Richard, Prof. Dr. (thesis advisor)
- Uppsala universitet,Högenergifysik
-
- Ferrari, Arnaud, Dr. (thesis advisor)
- Uppsala universitet,Högenergifysik
- show more...
- show less...
- (creator_code:org_t)
- ISBN 9789155491536
- Uppsala : Acta Universitatis Upsaliensis, 2015
- English 119 s.
- Series: Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology, 1651-6214 ; 1222
- Doctoral thesis (other academic/artistic)
Abstract
Subject headings
Close
- The discovery of a charged Higgs boson (H±) would be a clear indication for physics beyond the Standard Model. This thesis describes searches for charged Higgs bosons with the ATLAS experiment at CERN’s Large Hadron Collider (LHC). The first data collected during the LHC Run 1 is analysed, searching for a light charged Higgs boson (mH±<mtop), which decays predominantly into a tau-lepton and a neutrino. Different final states with one or two leptons (electrons or muons), as well as leptonically or hadronically decaying taus, are studied, and exclusion limits are set.The background arising from misidentified non-prompt electrons and muons was estimated from data. This so-called "Matrix Method'' exploits the difference in the lepton identification between real, prompt, and misidentified or non-prompt electrons and muons. The Matrix Method is used in all charged Higgs boson searches in this thesis.In 2024 the LHC will be upgraded into a High Luminosity LHC (HL-LHC). The ATLAS detector is expected to collect around 300 fb-1 of collision data until 2022, whereas the HL-LHC will deliver about 250-300 fb-1 of data per year. This will increase the mean number of interactions per bunch crossing, resulting in larger particle fluxes. This puts challenging requirements on the electronics. In order to keep trigger and data rates at manageable levels, new trigger concepts require more intelligence at early stage which possibly results in more cables and connectors, inside the detector which lead to degraded performance of the detector system.This thesis presents new concepts using wireless technology at 60 GHz, in order add more data links inside the detector system without adding much material. Patch antennas have been developed, operating at 60 GHz. Manufacture methods have been investigated, and the fabrication tolerances and bandwidth of these antennas have been studied. Also, concepts of using passive repeaters have been investigated, to make the 60 GHz signal pass boundaries. These repeaters can be used to connect intelligence inside the detector, but also for reading out data from the whole detector radially.
Subject headings
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
Keyword
- Charged Higgs boson
- Matrix Method
- ATLAS
- 60 GHz
- future particle detector
- Fysik med inriktning mot elementarpartikelfysik
- Physics with specialization in Elementary Particle Physics
Publication and Content Type
- vet (subject category)
- dok (subject category)
Find in a library
- Searches for a Charged Higgs Boson in ATLAS and Development of Novel Technology ... (Search the publication in LIBRIS)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Pelikan, Daniel, ...
- Brenner, Richard ...
- Ferrari, Arnaud, ...
- Bergeås Kuutmann ...
- Palla, Fabrizio, ...
- About the subject
-
- NATURAL SCIENCES
- NATURAL SCIENCES
- and Physical Science ...
- and Subatomic Physic ...
- Parts in the series
- Digital Comprehe ...
- By the university
- Uppsala University
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
