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Is it possible to detect the η' → e+e- decay?: A simulation of the η' decay from e+e- collisions
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
2014 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

Decays of light, pseudoscalar mesons into lepton pairs are one possible way of detecting physics beyond the Standard Model. This thesis will focus on the η' → e+e- decay, because only few experiments have studied this decay.

By the use of a basic simulation, the feasibility of conducting a search for the  η' → e+e- decay at DAΦNE, a electron-positron collider in Frascati, Italy, was investigated. The simulation implements an idea from previous experiments, where the η' decay was investigated through the e+e- → η' → X process.

The results of the simulation show that experiments at DAΦNE could produce an observable signal of the process when the produced η' decays into one of the most probable decay modes. However, in order to draw a definite conclusion, a more detailed study is needed.

Abstract [sv]

Sönderfallet av lätta, pseudoskalära mesoner till ett par av leptoner är ett möjligt sätt att detektera fysik bortom Standardmodellen. Detta examensarbete fokuserar på η’ → e+e- sönderfallet, på grund av att få experiment har studerat detta sönderfall.

Genom att använda en enkel simulering, undersöktes möjligheten att studera η’ → e+e- sönderfallet vid DAΦNE, en elektron-positron accelerator i Frascati, Italien. Simuleringen följde samma genomförande som tidigare experiment, där η’ sönderfallet undersöktes genom e+e- → η’ → X processen.

Resultaten av simuleringen visar på att experiment vid DAΦNE kan producera en detekterbar signal av processen då de producerade η’ sönderfaller till de mest troliga sönderfallen. På grund av begränsningarna i den utförda simulationen, behöver dock en mer detaljerad studie göras för att dra definitiva slutsatser.

Place, publisher, year, edition, pages
2014. , 40 p.
Keyword [en]
simulation, etaprime, eta prime, lepton decay, e+e- collisions
National Category
Subatomic Physics
URN: urn:nbn:se:uu:diva-229023OAI: oai:DiVA.org:uu-229023DiVA: diva2:735393
Educational program
Bachelor Programme in Physics
Available from: 2014-08-14 Created: 2014-07-26 Last updated: 2014-08-14Bibliographically approved

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Examensarbete C i fysik av Daniel Hamnevik(741 kB)135 downloads
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