Dipole polarizabilities of charged pions

Abstract

We discuss main experimental works, where dipole polarizabilities of charged pions have been determined. Possible reasons for the differences between the experimental data are discussed. In particular, it is shown that the account of the $\sigma$-meson gives a significant correction to the value of the polarizability obtained in the latest experiment of the COMPASS collaboration.

arXiv comment7 pages, 2 figures

References in corpus (16)

• Luminosity Determination in pp Collisions at sqrt(s)=7 TeV Using the ATLAS Detector at the LHC
• Charged Pion-Pair Production and Pion Polarizabilities to two Loops
• Revisiting γγ->π^+π^- at low energies
• MO analysis of the high statistics Belle results on $\gamma \gamma \to {\pi }^{+}{\pi }^{-},{\pi }^0{\pi }^0$ with chiral constraints
• Photon-Photon Scattering, Pion Polarizability and Chiral Symmetry
• Measurement of the pi^+ meson polarizabilities via the gamma p->gamma pi^+ n reaction
• Measurement of the gamma gamma -> pi+ pi- and gamma gamma -> K+ K- processes at energies of 2.4 - 4.1 GeV
• Measurement of the charged-pion polarisability
• Two photons into π^0π^0
• Determination of ${\pi }^{+}-$ meson polarizabilities from the $\gamma \gamma ->{\pi }^{+}{\pi }^{-}$ process
• Compton Scattering on the Charged Pion and the Process γγ\to π^0 π^0
• ${\pi }^{+}$ and ${\pi }^0$ Polarizabilities from {$\gamma \gamma \to \pi \pi$} Data on the Base of S-Matrix Approach
• Determination of π^0 meson quadrupole polarizabilities from the process γγ-> π^0π^0
• Coulomb-nuclear interference in pion-nucleus bremsstrahlung
• Hard pion bremsstrahlung in the Coulomb region
• Hadron structure at small momentum transfer

Cited by in corpus (3)

• Compton Scattering off Pions and Electromagnetic Polarizabilities
• Charged pion electric polarizability from four-point functions in lattice QCD
• Dipole Polarizabilities of ${\pi }^{\pm }$-Mesons