The decay J/ψ → γX(JP) → γϕϕ: Dynamical analysis of the X(JP) → ϕϕ resonance contributions

A.A. Kozhevnikov

doi:10.1051/epjconf/201921203005

All issues

Volume 212 (2019)

EPJ Web Conf., 212 (2019) 03005

Abstract

Open Access

Issue		EPJ Web Conf. Volume 212, 2019 The 12^th International Workshop on e⁺e^- Collisions from Phi to Psi (PhiPsi 2019)


Article Number		03005
Number of page(s)		6
Section		Mesons of Light Quarks
DOI		https://doi.org/10.1051/epjconf/201921203005
Published online		17 June 2019

EPJ Web of Conferences 212, 03005 (2019)
https://doi.org/10.1051/epjconf/201921203005

The decay J/ψ → γX(J^P) → γϕϕ: Dynamical analysis of the X(J^P) → ϕϕ resonance contributions

A.A. Kozhevnikov¹^,2^*

¹ Laboratory of Theoretical Physics, S.L. Sobolev Institute of Mathematics, 630090, Novosibirsk, Russian Federation
² Novosibirsk State University, 630090, Novosibirsk, Russian Federation

^* e-mail: kozhev@math.nsc.ru

Published online: 17 June 2019

Abstract

The dynamics of the J^PC = 0^-+,0⁺⁺, and 2⁺⁺ resonance contributions to the decay $J / ψ \to γ X (J^{P}) \to γ ϕ ϕ$ $J/\psi {\rm{ }} \to {\rm{ }}\gamma X\left( {{J^P}} \right) \to {\rm{ }}\gamma \phi \phi$ is analysed using the data obtained by BESIII collaboration. The effective coupling constants parameterising invariant amplitudes of the transitions $J / ψ \to γ X (J^{P C})$ $J/\psi {\rm{ }} \to {\rm{ }}\gamma X\left( {{J^{PC}}} \right)$ and $X (J^{P}) \to ϕ ϕ$ $X\left( {{J^P}} \right) \to {\rm{ }}\phi \phi$ and masses $X (J^{P})$ $X\left( {{J^P}} \right)$ of found from the fits are used to plot $ϕ ϕ$ $\phi \phi$ the mass spectrum of each J^PC component.

This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.