Measurements of the strong-interaction widths of the kaonic 3He and 4He 2p levels

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Authors

M. Bazzi · Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati

G. Beer · University of Victoria

L. Bombelli · Politecnico di Milano

A.M. Bragadireanu · Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati

M. Cargnelli · Stefan Meyer Institute for Subatomic Physics

C. Curceanu · Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati

Abstract

The kaonic (3)He and (4)He X-rays emitted in the [Formula: see text] transitions were measured in the SIDDHARTA experiment. The widths of the kaonic (3)He and (4)He 2p states were determined to be [Formula: see text], and [Formula: see text], respectively. Both results are consistent with the theoretical predictions. The width of kaonic (4)He is much smaller than the value of [Formula: see text] determined by the experiments performed in the 70's and 80's, while the width of kaonic (3)He was determined for the first time.

Topics & Keywords

Quantum, superfluid, helium dynamics High-pressure geophysics and materials Atomic and Subatomic Physics Research

Publication Details

Published in: Physics Letters B

Volume 714, Issue 1, pp. 40-43

DOI: 10.1016/j.physletb.2012.06.071

Field-Weighted Citation Impact: 2.37

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Measurements of the strong-interaction widths of the kaonic 3He and 4He 2p levels

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Abstract

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Publication Details