Study of ϒ(1S) Radiative Decays to γπ[superscript +]π[superscript −] and γ K[superscript +]K[superscript −]
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PhysRevD.97.112006.pdf
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Author(s)
Lees, J. P.
Poireau, V.
Tisserand, V.
Grauges, E.
Giannuzzi, F.
Palano, A.
Eigen, G.
Brown, D. N.
Kolomensky, Yu. G.
Fritsch, M.
Date Issued
June 2018
Journal
Physical Review D
Publisher
American Physical Society
Citation
Lees, J. P., et al. “Study of ϒ(1S) Radiative Decays to γπ[superscript +]π[superscript −] and γ K[superscript +]K[superscript −].” Physical Review D, vol. 97, no. 11, June 2018. © 2018 American Physical Society
Version
Final published version
Abstract
We study the ϒ(1S) radiative decays to γπ[superscript +}]π[superscript -] and γK[superscript +]Kp[superscript -] using data recorded with the BABAR detector operating at the SLAC PEP-II asymmetric-energy e[superscript +]e[superscript -] collider at center-of-mass energies at the ϒ(2S) and ϒ(3S) resonances. The ϒ(1S) resonance is reconstructed from the decay ϒ(nS)→π[superscript +]π[superscript -]ϒ(1S), n=2, 3. Branching fraction measurements and spin-parity analyses of ϒ(1S) radiative decays are reported for the I=0 S-wave and f[subscript 2](1270) resonances in the π[superscript +]π[superscript -} mass spectrum, the f[subscript 2][superscript ′](1525) and f[subscript 0](1500) in the K[superscript +]K[superscript -] mass spectrum, and the f[subscript 0](1710) in both.
MIT Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.97.112006
