6533b855fe1ef96bd12b142d
RESEARCH PRODUCT
Quark Structure of the X (4500), X (4700) and χc(4P,5P) States
E. SantopintoJ. Ferrettisubject
QuarkParticle physicsMesonFormalism (philosophy)QC1-999Materials Science (miscellaneous)BiophysicsStructure (category theory)General Physics and Astronomystrong decayshiukkasfysiikka01 natural sciencesInterpretation (model theory)charmonia phenomenology0103 physical sciencesPhysical and Theoretical Chemistry010306 general physics3P0 modelMathematical PhysicsPhysicsquark modelkvarkit010308 nuclear & particles physicsPhysicsexotic statesQuark modelunquenched quark modelHigh Energy Physics - Phenomenologycharmoniaydinfysiikkadescription
We study some of the main properties (masses and open-flavor strong decay widths) of 4P and 5P charmonia. While there are two candidates for the χc0(4P,5P) states, the X(4500) and X(4700), the properties of the other members of the χc(4P,5P) multiplets are still completely unknown. With this in mind, we start to explore the charmonium interpretation for these mesons. Our second goal is to investigate if the apparent mismatch between the Quark Model (QM) predictions for χc0(4P,5P) states and the properties of the X(4500) and X(4700) mesons can be overcome by introducing threshold corrections in the QM formalism. According to our coupled-channel model results for the threshold mass shifts, the χc0(5P)→X(4700) assignment is unacceptable, while the χc0(4P)→X(4500) or X(4700) assignments cannot be completely ruled out.
year | journal | country | edition | language |
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2021-05-28 | Frontiers in Physics |