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ϒ(1S)→γf\u272(1525); f\u272(1525)-\u3eK0sK0s Decays
Get PDFWe report on a study of exclusive radiative decays of the Upsilon(1S) resonance into a final state consisting of a photon and two K0s candidates. We find evidence for a signal for Upsilon(1S)-\u3egamma f_2\u27(1525); f_2\u27(1525)-\u3eK0sK0s, at a rate (4.0+/-1.3+/-0.6)x10^{-5}, consistent with previous observations of Upsilon(1S)-\u3egamma f_2\u27(1525); f_2\u27(1525)-\u3eK+K-, and isospin. Combining this branching fraction with existing branching fraction measurements of Upsilon(1S)-\u3egamma f_2\u27(1525) and J/psi-\u3egamma f_2\u27(1525), we obtain the ratio of branching fractions: B(Upsilon(1S)-\u3egamma f_2\u27(1525))/B(J/psi-\u3egamma f_2\u27(1525))=0.09+/-0.02, approximately consistent with expectations based on soft collinear effective theory
Brief Reports γ(1 S) →γf2′(1525); F2′(1525)→ KS0KS0, decays.
No full textWe report on a study of exclusive radiative decays of the Υ(1S) resonance into a final state consisting of a photon and two KS0 candidates. We find evidence for a signal for Υ(1S)→γf2′(1525); f2′(1525)→γKS0KS0, at a rate B(Υ(1S) →γf2′(1525))=(4.0±1.3±0.6)×10-5, consistent with previous observations of Υ(1S)→γf2′(1525) ; f2′(1525)→K+K-, and isospin. Combining this branching fraction with existing branching fraction measurements of Υ(1S)→γf2′(1525) and J/ψ→γf2′(1525), we obtain the ratio of branching fractions: B(Υ(1S) →γf2′(1525))/B(J/ψ→γf2′(1525))=0. 09±0.02, approximately consistent with expectations based on soft-collinear effective theory. © 2011 American Physical Society
Gamma(1S) -> gamma f(2)'(1525); f(2)'(1525) -> (KSKS0)-K-0 decays
No full textWe report on a study of exclusive radiative decays of the Υ(1S) resonance into a final state consisting of a photon and two KS0 candidates. We find evidence for a signal for Υ(1S)→γf2′(1525); f2′(1525)→γKS0KS0, at a rate B(Υ(1S) →γf2′(1525))=(4.0±1.3±0.6)×10-5, consistent with previous observations of Υ(1S)→γf2′(1525) ; f2′(1525)→K+K-, and isospin. Combining this branching fraction with existing branching fraction measurements of Υ(1S)→γf2′(1525) and J/ψ→γf2′(1525), we obtain the ratio of branching fractions: B(Υ(1S) →γf2′(1525))/B(J/ψ→γf2′(1525))=0. 09±0.02, approximately consistent with expectations based on soft-collinear effective theory. © 2011 American Physical Society
Upsilon(1S)-\u3eGamma+f2\u27(1525); f2\u27(1525)-\u3eK0sK0s Decays
Get PDFWe report on a study of exclusive radiative decays of the Upsilon(1S) resonance into a final state consisting of a photon and two K0s candidates. We find evidence for a signal for Upsilon(1S)-\u3egamma f_2\u27(1525); f_2\u27(1525)-\u3eK0sK0s, at a rate (4.0+/-1.3+/-0.6)x10^{-5}, consistent with previous observations of Upsilon(1S)-\u3egamma f_2\u27(1525); f_2\u27(1525)-\u3eK+K-, and isospin. Combining this branching fraction with existing branching fraction measurements of Upsilon(1S)-\u3egamma f_2\u27(1525) and J/psi-\u3egamma f_2\u27(1525), we obtain the ratio of branching fractions: B(Upsilon(1S)-\u3egamma f_2\u27(1525))/B(J/psi-\u3egamma f_2\u27(1525))=0.09+/-0.02, approximately consistent with expectations based on soft collinear effective theory
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