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First observation of the decay B-0 -> psi(2S)pi(0)
Journal article   Open access  Peer reviewed

First observation of the decay B-0 -> psi(2S)pi(0)

V. Chobanova, J. Dalseno, C. Kiesling, A. Abdesselam, I. Adachi, H. Aihara, D. M. Asner, T. Aushev, R. Ayad, V. Babu, …
Physical review. D, Vol.93(3)
23/02/2016

Abstract

Astronomy & Astrophysics Physical Sciences Physics Physics, Particles & Fields Science & Technology
We report a measurement of the B-0 -> psi(2S)pi(0) branching fraction based on the full Upsilon(4S) data set of 772 x 10(6) B (B) over bar pairs collected by the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We obtain B(B-0 -> psi(2S)pi(0)) = (1.17 +/- 0.17(stat) +/- 0.08(syst)) x 10(-5). The result has a significance of 7.2 standard deviations and is the first observation of the decay B-0 -> psi(2S)pi(0).
url
https://doi.org/10.1103/PhysRevD.93.031101View
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