PRECISION SPECTROSCOPY OF PIONIC ATOMS: FROM PION MASS EVALUATION TO TESTS OF CHIRAL PERTURBATION THEORY - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2004

PRECISION SPECTROSCOPY OF PIONIC ATOMS: FROM PION MASS EVALUATION TO TESTS OF CHIRAL PERTURBATION THEORY

Martino Trassinelli

Résumé

Preliminary results of the strong interaction shift and width in pionic hydrogen ($\pi H$) using an X-ray spectrometer with spherically bent crystals and CCDs as X-ray detector are presented. In the experiment at the Paul Scherrer Institute three different $(np\to 1s)$ transitions in $\pi H$ were measured. Moreover the pion mass measurement using the $(5 \to 4)$ transitions in pionic nitrogen and muonic oxygen is presented
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Dates et versions

hal-00002774 , version 1 (14-09-2004)

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Martino Trassinelli. PRECISION SPECTROSCOPY OF PIONIC ATOMS: FROM PION MASS EVALUATION TO TESTS OF CHIRAL PERTURBATION THEORY. DAFNE 2004: Physics at meson factories, 2004, Frascati, Italy. ⟨hal-00002774⟩
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