March 28, 2022 Master Thesis Open Access

Weidemann, Lucas

Dublin Core Export

<?xml version='1.0' encoding='utf-8'?>
<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:creator>Weidemann, Lucas</dc:creator>
  <dc:date>2022-03-28</dc:date>
  <dc:description>Axion-Like-Particles (ALPs) are a well motivated extension to the Standard Model. They are light, pseudoscalar particles which are dominantly interacting with Standard Model gauge bosons. As a result ALPs can be produced in a flavor-changing neutral current transition by its coupling to W bosons. Subsequently, the ALP dominantly decays into two photons, which makes the decay of a charged B meson to a charged K meson and an axion, which subsequently decays to two photons, a promising process for measuring the coupling to W bosons. Such decays can be studied at e+ e− colliders like the Belle II experiment. In this thesis a simulation-based sensitivity study of this process is performed by reconstructing the B meson and examining the invariant di-photon mass distribution. The study is performed with ALPs in mass range 0.1-4.6 GeV and zero lifetime. The expected limits are comparable to the results of the BaBar Collaboration, who conducted a similar search.</dc:description>
  <dc:identifier>https://publish.etp.kit.edu/record/22192</dc:identifier>
  <dc:identifier>oai:publish.etp.kit.edu:22192</dc:identifier>
  <dc:language>eng</dc:language>
  <dc:relation>url:https://publish.etp.kit.edu/communities/belle2</dc:relation>
  <dc:relation>url:https://publish.etp.kit.edu/communities/etp</dc:relation>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:subject>Axion-Like-Particles</dc:subject>
  <dc:subject>ALP</dc:subject>
  <dc:subject>Belle II</dc:subject>
  <dc:subject>B meson</dc:subject>
  <dc:subject>Kaon</dc:subject>
  <dc:subject>Sensitivity</dc:subject>
  <dc:subject>Punzi</dc:subject>
  <dc:subject>Monte Carlo</dc:subject>
  <dc:subject>New physics</dc:subject>
  <dc:title>Simulation-based Sensitivity Study of short-lived Axion-like Particles in B Meson Decays at the Belle II Experiment</dc:title>
  <dc:type>info:eu-repo/semantics/masterThesis</dc:type>
  <dc:type>thesis-master-thesis</dc:type>
</oai_dc:dc>