First measurement of kaonic helium-3 X-rays

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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 · Horia Hulubei National Institute for R and D in Physics and Nuclear Engineering

M. Cargnelli · Stefan Meyer Institute for Subatomic Physics

G. Corradi · Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati

Abstract

The first observation of the kaonic (3)He 3d→2p transition was made, using slow K- mesons stopped in a gaseous (3)He target. The kaonic atom X-rays were detected with large-area silicon drift detectors using the timing information of the K+K- pairs of ϕ-meson decays produced by the DAΦNE e+e- collider. The strong interaction shift of the kaonic (3)He 2p state was determined to be -2±2(stat)±4(syst) eV.

Topics & Keywords

Atomic and Subatomic Physics Research High-pressure geophysics and materials Nuclear Physics and Applications

Publication Details

Published in: Physics Letters B

Volume 697, Issue 3, pp. 199-202

DOI: 10.1016/j.physletb.2011.02.001

Field-Weighted Citation Impact: 5.09

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First measurement of kaonic helium-3 X-rays

Authors

Abstract

Topics & Keywords

Publication Details