Pion Polarizabilities
نویسنده
چکیده
منابع مشابه
1 0 A ug 1 99 5 Pion ( Kaon ) and Sigma polarizabilities
We report the results of the working group on “Pion (Kaon) and Sigma Polarizabilities”. Interesting possibilities to measure these polarizabilities include the radiative pion photoproduction in the MAMI experiment at Mainz, as well as at the GRAAL facility (actually the latter is being considered for an experimental determination of the pion polarizabilities here for the first time), the experi...
متن کاملTheoretical Predictions for Pion Polarizabilities 1
The polarizabilities of the pion have been predicted in several different theoretical frameworks. The status of these is reviewed.
متن کاملPion and Kaon Polarizabilities at CERN COMPASS
Objective: The electric (ᾱ) and magnetic (β̄) pion Compton polarizabilities characterize the pion’s deformation in the electromagnetic field of the γ during γπ Compton scattering. They depend on the rigidity of the pion’s internal structure as a composite particle. The polarizabilities deduced by Antipov et al. in their low statistics Primakoff experiment (∼ 7000 events) were ᾱπ = −β̄π = 6.8 ± 1....
متن کاملPion and Sigma Polarizabilities and Radiative Transitions
Fermilab E781 plans measurements of γ-Sigma and γ-pion interactions using a 600 GeV beam of Sigmas and pions, and a virtual photon target. Pion polarizabilities and radiative transitions will be measured in this experiment. The former can test a precise prediction of chiral symmetry; the latter for a1(1260)→ πγ is important for understanding the polarizability. The experiment also measures pola...
متن کاملPion Polarizabilities at CERN COMPASS
Objective: The electric (ᾱ) and magnetic (β̄) pion Compton polarizabilities characterize the pion’s deformation in the electromagnetic field of the γ during γπ Compton scattering. They depend on the rigidity of the pion’s internal structure as a composite particle. The polarizabilities deduced by Antipov et al. in their low statistics Primakoff experiment (∼ 7000 events) were ᾱπ = −β̄π = 6.8± 1.4...
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