RT Journal Article
T1 Kaonic helium-4 X-ray measurement in SIDDHARTA
A1 SIDDHARTA Collaboration, 
A1 Bazzi, M.
A1 Romero Vidal, Antonio
A1 Zmeskal, J.
AB The kaonic helium-4 3d → 2p X-ray transition was measured in a gaseous target, where Compton scattering in helium is negligible. The X-rays were detected with large-area Silicon Drift Detectors (SDDs) using the timing information of the K+K− pairs produced by φ decays at the DA NE e+e− collider. A new value of the strong interaction shift of the kaonic 4He 2p state was determined to be 0±6(stat)±2 (syst) eV, which confirms the recently obtained result by the KEK-PS E570 group.
PB Elsevier
SN 0370-2693
YR 2009
FD 2009-11-09
LK https://hdl.handle.net/10347/39343
UL https://hdl.handle.net/10347/39343
LA eng
DS Minerva
RD 22 abr 2026