Measurement Of The E(+)E(-) -> Eta Pi(+) Pi(-) Cross Section With The Snd Detector At The Vepp-2000 Collider

PHYSICAL REVIEW D(2018)

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摘要
The e(+)e(-) -> eta pi(+)pi(-) cross section is measured at the Spherical Neutral Detector (SND) detector in the eta decay mode eta -> 3 pi(0). The analysis is based on the data sample with an integrated luminosity of 32.7 pb(-1) collected at the VEPP-2000 e(+)e(-) collider in the center-of-mass energy range root s =1.075-2.000 GeV. The data obtained in the eta -> 3 pi(0) decay mode are found to be in agreement with the previous SND measurements in the eta -> gamma gamma mode. Therefore the measurements in the two modes are combined.
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