EPJ Web of Conferences
Volume 37, 2012MESON 2012 – 12th International Workshop on Production, Properties and Interaction of MESONS
|Number of page(s)||4|
|Section||Atoms - parallel talks|
|Published online||06 December 2012|
Kaonic 3He and 4He measurements in the SIDDHARTA experiment at the DAΦNE collider
1 INFN, Laboratori Nazionali di Frascati, Frascati (Roma), Italy
2 Department of Physics and Astronomy, University of Victoria, Victoria, BC, Canada
3 Politecnico di Milano, Sezione di Elettronica, Milano, Italy
4 Horia Hulubei National Institute of Physics and Nuclear Engineering, Magurele, Romania
5 Stefan-Meyer-Institut für subatomare Physik, Vienna, Austria
6 INFN Sezione di Roma I and Istituto Superiore di Sanità, Roma, Italy
7 The University of Tokyo, Tokyo, Japan
8 RIKEN, The Institute of Physics and Chemical Research, Saitama, Japan
9 Technische Universität München, Physik Department, Garching, Germany
10 University of Santiago de Compostela, Santiago de Compostela, Spain
a e-mail: email@example.com
The SIDDHARTA collaboration measured kaonic 3He and 4He 3d → 2p X-rays with gaseous targets at the DAΦNE e+e− collider. The 2p-state strong-interaction shifts and widths were precisely determined by using 144 high-resolution silicon drift detectors. The shift of K−4He is in good agreement with theoretical calculations and consistent with the recent experimental result of KEK-PS E570. The shift of K−3He is also determined for the first time. The newly determined widths are in agreement with optical model calculations.
© Owned by the authors, published by EDP Sciences, 2012
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Initial download of the metrics may take a while.