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Study of the decays psi(3686) -> gamma chi(cJ) -> gamma(p)over-barK*(+)Lambda + c.c. and psi(3686) -> (p)over-barK*(+) Lambda plus c.c.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.ORCID iD: 0000-0001-6280-3851
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
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Number of Authors: 4832019 (English)In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 100, no 5, article id 052010Article in journal (Refereed) Published
Abstract [en]

Based on the data sample of 448.1 x 10(6) psi(3686) events collected with the BESIII detector at BEPCII, we present a study of the decays psi(3686) -> gamma chi(cJ) -> gamma(p) over barK*(+)Lambda + c.c. and psi(3686) -> (p) over barK*(+)Lambda + c.c. The branching fractions of chi(cJ )-> (p) over barK*(+)Lambda + c.c. (J = 0, 1, 2) are measured to be (4.8 +/- 0.7 +/- 0.5) x 10(-4), (5.0 +/- 0.5 +/- 0.4) x 10(-4), and (8.2 +/- 0.9 +/- 0.7) x 10(-4), respectively, where the first uncertainties are statistical and the second systematic. The branching fraction of psi(3686) -> (p) over barK*(+)Lambda + c.c. is measured to be (6.3 +/- 0.5 +/- 0.5) x 10(-5). All these decay modes are observed for the first time.

Place, publisher, year, edition, pages
American Physical Society, 2019. Vol. 100, no 5, article id 052010
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Subatomic Physics
Identifiers
URN: urn:nbn:se:uu:diva-395459DOI: 10.1103/PhysRevD.100.052010ISI: 000486645100002OAI: oai:DiVA.org:uu-395459DiVA, id: diva2:1366982
Funder
Knut and Alice Wallenberg Foundation, 2016.0157Swedish Research Council
Note

For complete list of authors see http://dx.doi.org/10.1103/PhysRevD.100.052010

Available from: 2019-10-31 Created: 2019-10-31 Last updated: 2019-10-31Bibliographically approved

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Adlarson, PatrikBiernat, JacekIkegami Andersson, WalterJohansson, TordKupsc, AndrzejLi, CuiPapenbrock, MichaelPettersson, JoachimSchönning, KarinThorén, ViktorWolke, Magnus
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