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.
","abstract_html":"<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>","abstract_has_math":false,"creators":["Wilkinson, Michael Kent"],"institution":null,"degree_name":"Doctor of Philosophy (PhD)","degree_level":"Dissertation","degree_discipline":"Physics","degree_department":null,"school":null,"contributors":["Blusk, Steven"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2021,"date_issued":"2021-12-22T08:00:00Z","date_published":"2021-12-22T08:00:00Z","updated_at":"2026-07-24T04:56:14Z","subjects":["baryon","collision","decay","hadron","suppressed","weak","Physical Sciences and Mathematics","Physics"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://surface.syr.edu/etd/1365","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Blusk, Steven"]},{"key":"dc:creator","label":"Author","values":["Wilkinson, Michael Kent"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"thesis:degree_discipline","label":"Discipline","values":["Physics"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Doctor of Philosophy (PhD)"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["baryon","collision","decay","hadron","suppressed","weak","Physical Sciences and Mathematics","Physics"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://surface.syr.edu/etd/1365"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["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.
"]},{"key":"dc:title","label":"Title","values":["First Measurement of B(ξc0 → Π−λ+c )"]}]}],"canonical_facts":{"dc:contributor":["Blusk, Steven"],"dc:creator":["Wilkinson, Michael Kent"],"dc:description.abstract":["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.
"],"dc:identifier":["https://surface.syr.edu/etd/1365"],"dc:subject":["baryon","collision","decay","hadron","suppressed","weak","Physical Sciences and Mathematics","Physics"],"dc:title":["First Measurement of B(ξc0 → Π−λ+c )"],"thesis:degree_discipline":["Physics"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Doctor of Philosophy (PhD)"]},"updated_at":"2026-07-24T04:56:14Z"}