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Search for baryon and lepton number violation in J/ψ → Λc+e- + c.c.
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.ORCID iD: 0000-0002-6945-716x
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.ORCID iD: 0000-0003-4937-2270
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Number of Authors: 4522019 (English)In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 99, no 7, article id 072006Article in journal (Refereed) Published
Abstract [en]

Using 1.31 x 109 J/ψ events collected by the BESIII detector at the Beijing Electron Positron Collider, we search for the process J/ψ → Λc+e- + c.c. for the first time. In this process, both baryon and lepton number conservation is violated. No signal is found and the upper limit on the branching fraction Β(J/ψ → Λc+e- + c.c.) is set to be 6.9 x 10-8 at the 90% confidence level.

Place, publisher, year, edition, pages
2019. Vol. 99, no 7, article id 072006
National Category
Subatomic Physics
Identifiers
URN: urn:nbn:se:uu:diva-382852DOI: 10.1103/PhysRevD.99.072006ISI: 000464742700003OAI: oai:DiVA.org:uu-382852DiVA, id: diva2:1317336
Funder
Swedish Research CouncilGerman Research Foundation (DFG), CRC 1044German Research Foundation (DFG), FOR 2359
Note

For complete list of authors see http://dx.doi.org/10.1103/PhysRevD.99.072006

Available from: 2019-05-22 Created: 2019-05-22 Last updated: 2019-05-22Bibliographically approved

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Ikegami Andersson, WalterJohansson, TordKupsc, AndrzejLi, CuiPapenbrock, MichaelPettersson, JoachimSchönning, KarinWolke, Magnus

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Physical Review D: covering particles, fields, gravitation, and cosmology
Subatomic Physics

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