Change search
ReferencesLink to record
Permanent link

Direct link
Detection of a hypercharge axion in ATLAS: a Monte-Carlo simulation of a pseudo-scalar particle (hypercharge axion) with electroweak interactions for the ATLAS detector in the large hadron collider at CERN
2000 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

This Master of Science thesis treats the hypercharge axion, which is a hypothetical pseudo-scalar particle with electroweak interactions. First, the theoretical context and the motivations for this study are discussed. In short, the hypercharge axion is introduced to explain the dominance of matter over antimatter in the universe and the existence of large-scale magnetic fields. Second, the phenomenological properties are analyzed and the distinguishing marks are underlined. These are basically the off-axis products of photons and Z^0s with an invariant mass equal to that of the axion. Third, the simulation is carried out with two photons producing the axion which decays into Z^0s and photons. The event simulation is run through the simulator ATLFAST of ATLAS (A Toroidal Large Hadron Collider ApparatuS) at CERN. Finally, the characteristics of the axion decay are analyzed and the criteria for detection are presented. A study of the background is also included. The result is that for certain values of the axion mass and the mass scale (both in the order of a TeV), the hypercharge axion could be detected in ATLAS.

Place, publisher, year, edition, pages
Keyword [en]
Technology, Hypercharge axion, LHC, ATLAS, antimatter, baryogenesis, detection, particle physics
Keyword [sv]
URN: urn:nbn:se:ltu:diva-44385ISRN: LTU-EX--00/334--SELocal ID: 22b7736a-461e-4e3f-bf4c-323573662f2fOAI: diva2:1017662
Subject / course
Student thesis, at least 30 credits
Educational program
Engineering Physics, master's level
Validerat; 20101217 (root)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

Open Access in DiVA

fulltext(669 kB)0 downloads
File information
File name FULLTEXT01.pdfFile size 669 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

ReferencesLink to record
Permanent link

Direct link