Is the scalar meson seen in CELLO data on γγ→π+π- ?
A. E. Kaloshin, V. M. Persikov
Abstract
We analyze the CELLO angular distributions γγ→π+π- with the unitary model KS-86 for helicity 2 amplitude. In contrast to previous analysis CELLO we do not see any QED damping. The obtained S--wave does not contradict to low--energy theorem and demonstrates more clealy the resonance--like behaviour near 1.3 Gev.
Create a lesson
Related papers
Comment on "Long-range magnetic fields in the ground state of the Standard Model plasma"
Jingwei Wang, Yiming Liu, Ligong Bian
Semiparametric Estimation of Physics Parameters and Parton Distribution Functions
Huanbiao Zhu, Jaco ter Hoeve, Mikael Kuusela et al.
Observable gravitational waves from unstable ALP catastrogenesis
Graciela B. Gelmini, Jonah Hyman, Yu Watanabe
Revisiting the gamma-ray signal from light ALPs emitted during the evaporation of memory-burdened PBHs
Cheng-Rui Jiang, Tong Li
Holographic spin alignment of vector mesons in a spinning black-hole background
Fei Wang, Zi-qiang Zhang
Modeling a Framework for Comprehensive Analysis of p\!A Transverse Analyzing Power Measurements at the RHIC HJET
Andrei Poblaguev