Search for the rare decay eta ' -> pi(0)pi(0)pi(0)pi(0) at BESIII

Using a sample of 1.31×109 J/ψ events collected with the BESIII detector, we perform a search for the rare decay η′→4π0 via J/ψ→γη′. No significant η′ signal is observed in the 4π0 invariant mass spectrum. With a Bayesian approach, the upper limit on the branching fraction is determined to be B(η′→4...

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Detalles Bibliográficos
Autores principales:	Ablikim, M, Achasov, MN, Adlarson, P, Ahmed, S, Albrecht, M, Alekseev, M, Amoroso, A, An, Q, Anita, YB, Bakina, O, Ferroli, RB, Balossino, I, Ban, Y, Begzsuren, K, Bennett, JV, Berger, N, Bertani, M, Bettoni, D, Bianchi, F, Biernat, J, Bloms, J, Boyko, I, Briere, RA, Cai, H, Cai, X, Calcaterra, A, Cao, GF, Cao, N, Cetin, SA, Chai, J, Chang, JF, Chang, WL, Chelkov, G, Chen, DY, Chen, G, Chen, HS, Chen, J, Chen, ML, Chen, SJ, Chen, XR, Chen, YB, Cheng, W, Cibinetto, G, Cossio, F, Cui, XF, Dai, HL, Dai, JP, Dai, XC, Dbeyssi, A, Elbert, B, BESIII Collaboration
Formato:	Journal article
Lenguaje:	English
Publicado:	American Physical Society 2020

Search for the rare decay eta ' -> pi(0)pi(0)pi(0)pi(0) at BESIII

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