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Observation Of Two Resonant Structures In E(+)E(-)->Pi(+)Pi(-)Psi(2s) Via Initial-State Radiation At Belle

PHYSICAL REVIEW LETTERS, no. 14 (2007)

Cited: 60|Views25

Abstract

The cross section for e(+)e(-)->pi(+)pi(-)psi(2S) between threshold and root s=5.5 GeV is measured using 673 fb(-1) of data on and off the Upsilon(4S) resonance collected with the Belle detector at KEKB. Two resonant structures are observed in the pi(+)pi(-)psi(2S) invariant-mass distribution, one at 4361 +/- 9 +/- 9 MeV/c(2) with a width...More

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