Lees, J. P.Poireau, V.Tisserand, V.Grauges, E.Giannuzzi, F.Palano, A.Eigen, G.Izen, Joseph M.Lou, XinchouBaBar Collaboration2019-05-152019-05-152018-06-212470-0010https://hdl.handle.net/10735.1/6469We study the Υ(1S) radiative decays to γπ⁺π⁻ and γK⁺K⁻ using data recorded with the BABAR detector operating at the SLAC PEP-11 asymmetric-energy e⁺e⁻ 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⁺π⁻ 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 ∫₂ (1270) resonances in the π⁺π⁻ mass spectrum, the ∫′₂ (1525) and ∫₀ (1500) in the K⁺K⁻ mass spectrum, and the ∫₃(1710) in both.enCC BY 4.0 (Attribution)©2018 The Authorshttp://creativecommons.org/licenses/by/4.0/Particles (Nuclear physics)--DecayPionsWave guidesSemiconductor lasersQuantum chromodynamicsQuarksarticleLees, J. P., V. Poireau, V. Tisserand, E. Grauges, et al. 2018. "Study of Υ(1S) radiative decays to γπ⁺π⁻ and γK⁺K⁻." Physical Review D 97(11): 112006-1 to 17, doi:10.1103/PhysRevD.97.1120069711