Energy level displacement of excited np states of kaonic hydrogen
Abstract
We compute the energy level displacement of the excited np states of kaonic hydrogen within the quantum field theoretic and relativistic covariant model of strong low-energy bar-KN interactions suggested in EPJA21, 11 (2004). For the width of the energy level of the excited 2p state of kaonic hydrogen, caused by strong low-energy interactions, we find Gamma2p = 2 meV. This result is important for the theoretical analysis of the X-ray yields in kaonic hydrogen.
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