We study the Υ(1S) radiative decays to γπ+π- and γK+K- using data recorded with the BABAR detector operating at the SLAC PEP-II 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 f2(1270) resonances in the π+π- mass spectrum, the f2′(1525) and f0(1500) in the K+K- mass spectrum, and the f0(1710) in both.

Study of Υ(1S) radiative decays to γπ+π- and γK+K-

Pilloni A.;
2018-01-01

Abstract

We study the Υ(1S) radiative decays to γπ+π- and γK+K- using data recorded with the BABAR detector operating at the SLAC PEP-II 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 f2(1270) resonances in the π+π- mass spectrum, the f2′(1525) and f0(1500) in the K+K- mass spectrum, and the f0(1710) in both.
2018
Inglese
American Physical Society
97
11
112006
112022
17
Internazionale
Esperti anonimi
info:eu-repo/semantics/article
Lees, J. P.; Poireau, V.; Tisserand, V.; Grauges, E.; Giannuzzi, F.; Palano, A.; Eigen, G.; Brown, D. N.; Kolomensky, Yu. G.; Fritsch, M.; Koch, H.; S...espandi
14.a Contributo in Rivista::14.a.1 Articolo su rivista
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11570/3208524
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