2,465 research outputs found
Strong decays of molecules and the newly observed states
Lately, the LHCb Collaboration reported the discovery of two new states in
the decay, i.e., and . In
the present work, we study whether these states can be understood as
molecules from the perspective of their two-body strong decays
into via triangle diagrams and three-body decays into .
The coupling of the two states to are determined from the
Weinberg compositeness condition, while the other relevant couplings are well
known. The obtained strong decay width for the , in marginal
agreement with the experimental value within the uncertainty of the model,
hints at a large component in its wave function. On the other
hand, the strong decay width for the , much smaller than its
experimental counterpart, effectively rules out its assignment as a
molecule.Comment: 5 pages, 2 figure
An Ontology of Chinese Radicals: Concept Derivation and Knowledge Representation based on the Semantic Symbols of Four Hoofed-Mammals
PACLIC / The University of the Philippines Visayas Cebu College Cebu City, Philippines / November 20-22, 200
Phorbol ester induced ex vivo expansion of rigorously-defined phenotypic but not functional human cord blood hematopoietic stem cells: a cautionary tale demonstrating that phenotype does not always recapitulate stem cell function
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