Investigation of the e+e- ωπ0 π0 π0 γ reaction in the energy domain near the ϕ-meson
M. N. Achasov, V. M. Aulchenko, A. V. Berdyugin, A. V. Bozhenok, D. A. Bukin, S. V. Burdin, T. V. Dimova, V. P. Druzhinin, M. S. Dubrovin, I. A. Gaponenko, V. B. Golubev, V. N. Ivanchenko, I. A. Koop, A. A. Korol, S. V. Koshuba, E. V. Pakhtusova, A. A. Salnikov, V. V. Shary, S. I. Serednyakov, Yu. M. Shatunov, V. A. Sidorov, Z. K. Silagadze, A. A. Valishev
Abstract
The e+e- ωπ0 π0 π0 γ process was investigated in the SND experiment at the VEPP-2M collider. A narrow energy interval near the ϕ-meson was scanned. The observed cross-section reveals, at the level of three standard deviation, the interference effect caused by ϕ π0π0γ decay. The cross-section parameters, as well as the real and imaginary parts of the ϕ-meson related amplitude, were measured.
Create a lesson
Related papers
Observation of double ss production in e+e- collision at s = 3.08~GeV
BESIII Collaboration, M. Ablikim, M. N. Achasov et al.
A heterogeneous and vectorized sequence for the HL-LHC full tracking reconstruction of the CMS experiment
Emmanouil Vourliotis
Coverage Is Not Ordering: Ancillary Leakage and Representation Dependence in Covariance-Based Inference
Tommaso Dorigo
IRIS-HEP 2026 Statistical Ecosystem Blueprint White Paper
Matthew Feickert, Massimiliano Galli
Constraints on the Higgs boson total width from on-shell signal-background interference in the Hγγ decay channel with pp collisions at s=13 TeV with the ATLAS detector
ATLAS Collaboration
Status and Prospects of the HEP Statistical Inference Ecosystem
Massimiliano Galli