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Cross section measurements of e+e- -> K+ K- K+ K- and ΦK+ K- at center-of-mass energies from 2.10 to 3.08 GeV
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: 4792019 (English)In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 100, no 3, article id 032009Article in journal (Refereed) Published
Abstract [en]

We measure the Born cross sections of the process e(+)e(-) -> K+ K- K+ K- at center-of-mass (c.m.) energies, root s, between 2.100 and 3.080 GeV. The data were collected using the BESIII detector at the BEPCII collider. An enhancement at root s = 2.232 GeV is observed, very close to the e(+)e(-) -> Lambda(Lambda) over bar production threshold. A similar enhancement at the same c.m. energy is observed in the e(+)e(-) -> phi K+ K- cross section. The energy dependence of the K+ K- K+ K- and phi K+ K- cross sections differs significantly from that of e(+)e(-) -> phi pi(+)pi(-).

Place, publisher, year, edition, pages
2019. Vol. 100, no 3, article id 032009
National Category
Subatomic Physics
Identifiers
URN: urn:nbn:se:uu:diva-394263DOI: 10.1103/PhysRevD.100.032009ISI: 000483349300001OAI: oai:DiVA.org:uu-394263DiVA, id: diva2:1358761
Funder
Knut and Alice Wallenberg Foundation, 2016.0157Swedish Research Council
Note

For complete list of authors see http://dx.doi.org/10.1103/PhysRevD.100.032009

Available from: 2019-10-08 Created: 2019-10-08 Last updated: 2019-10-08Bibliographically approved

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