S-matrix approach to two-pion production in e+e- annihilation and tau decay
A. Bernicha, G. Lopez Castro, J. Pestieau
Abstract
Based on the S-matrix approach, we introduce a modified formula for the π electromagnetic form factor which describes very well the experimental data in the energy region 2mπ ≤ s ≤ 1.1 GeV. Using the CVC hypothesis we predict B() = (24.75 0.38)\% , in excellent agreement with recent experiments.
Create a lesson
Related papers
Electromagnetic form factors of vector mesons in Einstein-dilaton holographic QCD
Alfonso Ballon-Bayona, Tobias Frederico, Luis A. H. Mamani et al.
An invertible map between 3D Breit-frame mechanical distributions and 2D infinite-momentum-frame mechanical densities in spin-1 hadrons
Kemal Tezgin
Adiabatic hydrodynamization with transverse spatial gradients in boost-invariant plasmas
Uri Sharell, Jasmine Brewer, Weiyao Ke
Line shapes of Ω(2012) production in the Ξ K and Ξπ K decay channels
Natsumi Ikeno, Eulogio Oset
A quantum representation of π fragmentation functions through variational quantum circuits
David F. Rentería-Estrada, Roger J. Hernández-Pinto, Germán Rodrigo et al.
Particle Physics Driven by Quantum Technology - Quantum Simulations and Quantum Sensing
Itay M. Bloch, Marcela Carena, Yifan Chen et al.