Measurement of the Kaonic Hydrogen X-Ray Spectrum
Abstract
The DEAR (DAΦNE exotic atom research) experiment measured the energy of x rays emitted in the transitions to the ground state of kaonic hydrogen. The measured values for the shift ɛ and the width Γ of the 1s state due to the K-p strong interaction are ɛ1s=-193±37 (stat) ±6 (syst) eV and Γ1s=249±111 (stat) ±30 (syst) eV, the most precise values yet obtained. The pattern of the kaonic hydrogen K-series lines, Kα, Kβ, and Kγ, was disentangled for the first time.
- Publication:
-
Physical Review Letters
- Pub Date:
- June 2005
- DOI:
- 10.1103/PhysRevLett.94.212302
- Bibcode:
- 2005PhRvL..94u2302B
- Keywords:
-
- 13.75.Jz;
- 25.80.Nv;
- 36.10.Gv;
- Kaon-baryon interactions;
- Kaon-induced reactions;
- Mesonic atoms and molecules hyperonic atoms and molecules