First Measurement of B(ξc0 → Π−λ+c )

<p>The first measurement of the branching fraction of the Ξc0 baryon in its decay to π− and Λ+c hadrons, B(Ξc0 → π−Λ+c ), is presented. This measurement was conducted with the LHCb detector, located on the Large Hadron Collider, using 13 TeV proton-proton collisions. There have been a number of theoretical predictions for the size of this branching fraction, spanning more than an order of magnitude; this large difference is primarily due to differing assumptions about the internal interactions contributing to the decay. The branching fraction measured here provides the first experimental evidence for the nature of these interactions; it is consistent with the larger predictions and inconsistent with the smaller ones, indicating a constructive interference effect. In addition, the second measurement of the branching fraction of the Ξc+ baryon in its decay to p, K−, and π+ hadrons, B(Ξc+ → pK−π+), is presented and found to be consistent with the Belle collaboration's previous measurement while carrying a lower relative uncertainty.</p>

Name thesis:degree_name

Doctor of Philosophy (PhD)

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Physics

Year

2021

Author dc:creator

• Wilkinson, Michael Kent

Contributors dc:contributor

• Blusk, Steven

• baryon
• collision
• decay
• hadron
• suppressed
• weak
• Physical Sciences and Mathematics
• Physics

Repository record dc:identifier

https://surface.syr.edu/etd/1365

OAI identifier oai:identifier

oai:surface.syr.edu:etd-2366