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Search for the decay B-s(0) -> eta eta
Journal article   Open access  Peer reviewed

Search for the decay B-s(0) -> eta eta

B. Bhuyan, K. J. Nath, J. Borah, Adachi, H. Aihara, S. Al Said, D. M. Asner, H. Atmacan, Aulchenko, T. Aushev, …
Physical review. D, Vol.105(1)
11/01/2022

Abstract

Astronomy & Astrophysics Physical Sciences Physics Physics, Particles & Fields Science & Technology
We report results from a search for the decay B-s(0) -> eta eta using 121.4 fb(-1) of data collected at the Upsilon(5S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We do not observe any signal and set an upper limit on the branching fraction of 14.3 x 10(-5) at 90% confidence level. This result represents a significant improvement over the previous most stringent limit.
url
https://doi.org/10.1103/PhysRevD.105.012007View
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