Branching fraction measurement of J/ψ→KSKL and search for J/ψ→KSKS

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doi:10.1103/PhysRevD.96.112001

Title: Branching fraction measurement of $J / ψ \to K_{S} K_{L}$ and search for $J / ψ \to K_{S} K_{S}$

Journal Article · Mon Dec 04 00:00:00 EST 2017 · Physical Review D

DOI:https://doi.org/10.1103/PhysRevD.96.112001· OSTI ID:1440859

Ablikim, M.; Achasov, M. N.; Ahmed, S.; Albrecht, M.; Alekseev, M.; Amoroso, A.; An, F. F.; An, Q.; Bai, J. Z.; Bai, Y.; Bakina, O.; Baldini Ferroli, R.; Ban, Y.; Bennett, D. W.; Bennett, J. V.; Berger, N.; Bertani, M.; Bettoni, D.; Bian, J. M.; Bianchi, F. more »

Using a sample of 1.31×10⁹J/ψ events collected with the BESIII detector at the BEPCII collider, we study the decays of J/ψ→ K_SK_L and K_SK_S. The branching fraction of J/ψ→ K_SK_L is determined to be B(J/ψ→ K_SK_L) = (1:93 0:01 (stat:) 0:05 (syst:))×10^-4, which signi cantly improves on previous measurements. No clear signal is observed for the J/ψ→ K_SK_S process, and the upper limit at the 95% con dence level for its branching fraction is determined to be B(J= ! K_SK_S) < 1:4×10^-8, which improves on the previous searches by 2 orders in magnitude and reaches the order of the Einstein-Podolsky-Rosen expectation.

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Research Organization:: George Washington Univ., Washington, DC (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP)

Contributing Organization:: BESIII Collaboration

Grant/Contract Number:: SC0016583; FG02-05ER41374; SC-0010118; SC-0010504; SC-0012069

OSTI ID:: 1440859

Alternate ID(s):: OSTI ID: 1411112

Journal Information:: Physical Review D, Vol. 96, Issue 11; ISSN 2470-0010

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 9 works

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