https://doi.org/10.1140/epja/i2010-10981-3
Regular Article - Experimental Physics
Production of 
and 3
mesons in the pd 
3HeX reaction at 1360 and 1450 MeV
1
Department of Physics and Astronomy, Uppsala University, Box 516, S-751 20, Uppsala, Sweden
2
Department of Physics, Stockholm University, S-106 91, Stockholm, Sweden
3
Physikalisches Institut der Universität Tübingen, D-72076, Tübingen, Germany
4
Sołtan Institute of Nuclear Studies, PL-00-681, Warsaw, Poland
5
Joint Institute for Nuclear Research, 141980, Dubna, Moscow region, Russia
6
Institut für Experimentalphysik, Universität Hamburg, D-22761, Hamburg, Germany
7
The Svedberg Laboratory, S-751 21, Uppsala, Sweden
8
Budker Institute of Nuclear Physics, 630 090, Novosibirsk, Russia
9
Institut für Kernphysik, Forschungszentrum Jülich GmbH, D-52425, Jülich, Germany
10
Moscow Engineering Physics Institute, Moscow, Russia
11
Institute of Theoretical and Experimental Physics, Moscow, Russia
12
Institute of Experimental Physics, University of Warsaw, PL-00-681, Warsaw, Poland
13
Soltan Institute of Nuclear Studies, PL-90-950, Lodz, Poland
Received:
12
January
2010
Revised:
22
March
2010
Accepted:
30
April
2010
Published online:
12
June
2010
The cross-sections of the pd
3He , pd
3He 
and pd
3He 
reactions have been measured at the beam kinetic energies T
p= 1360 MeV and T
p= 1450 MeV using the CELSIUS/WASA detector setup. At both energies, the differential cross-section 
of the meson in the pd
3He reaction shows a strong forward-backward asymmetry in the CMS. The ratio between the pd
3He
and pd
3He
cross-sections has been analysed in terms of isospin amplitudes. The reconstructed invariant-mass distributions of the
,
3He
and
3He2 systems provide hints on the role of nucleon resonances in the 3 production process.
© SIF, Springer-Verlag Berlin Heidelberg, 2010
