Search for the Invisible Decay of J/{psi} in {psi}(2S){yields}{pi}{sup +}{pi}{sup -}J/{psi}

Journal Article · Fri May 16 00:00:00 EDT 2008 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.100.192001· OSTI ID:21132410

Ablikim, M; Bai, J Z; Cai, X; Chen, H S; Chen, H X; Chen, J C; Chen, Jin; Chen, Y B; Chu, Y P; Deng, Z Y; Du, S X; Fang, J; Fang, S S; Gao, C S; Gu, S D; Guo, Y N; He, K L; Heng, Y K; Hu, H M; Hu, T ^[1]

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1. Institute of High Energy Physics, Beijing 100049 (China)

Using {psi}(2S){yields}{pi}{sup +}{pi}{sup -}J/{psi} events in a sample of 14.0x10{sup 6} {psi}(2S) decays collected with the BES-II detector, a search for the decay of the J/{psi} to invisible final states is performed. No signal is found, and an upper limit at the 90% confidence level is determined to be 1.2x10{sup -2} for the ratio (B(J/{psi}{yields}invisible)/B(J/{psi}{yields}{mu}{sup +}{mu}{sup -})). This is the first search for J/{psi} decays to invisible final states.

• OSTI ID: 21132410
• Journal Information: Physical Review Letters, Vol. 100, Issue 19; Other Information: DOI: 10.1103/PhysRevLett.100.192001; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA). BES Collaboration; ISSN 0031-9007
• Country of Publication: United States
• Language: English

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