This title appears in the Scientific Report :
2018
Please use the identifier:
http://dx.doi.org/10.1140/epja/i2018-12641-0 in citations.
Please use the identifier: http://hdl.handle.net/2128/22773 in citations.
Resonance-like coherent production of a pion pair in the reaction $pd \rightarrow pd \pi\pi$pd→pdππ in the GeV region
Resonance-like coherent production of a pion pair in the reaction $pd \rightarrow pd \pi\pi$pd→pdππ in the GeV region
The reaction p+d→p+d+X was studied at 0.8-2.0 GeV proton beam energies with the ANKE magnetic spectrometer at the COSY synchrotron storage ring. The proton-deuteron pairs emerging with high momenta, 0.6-1.8 GeV/c, were detected at small angles with respect to the proton beam. Distribution over the r...
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Personal Name(s): | Komarov, V. I. (Corresponding author) |
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Tsirkov, D. / Azaryan, T. / Bagdasarian, Z. / Baimurzinova, B. / Barsov, S. / Dymov, S. / Gebel, R. / Hartmann, M. / Kacharava, A. / Khoukaz, A. / Kulikov, A. / Kunsafina, A. / Kurbatov, V. / Kurmanaliyev, Zh. / Lorentz, B. / Macharashvili, G. / Mchedlishvili, D. / Merzliakov, S. / Mikirtytchiants, S. / Nioradze, M. / Ohm, H. / Rathmann, F. / Serdyuk, V. / Shmakova, V. / Trusov, S. / Uzikov, Yu. / Valdau, Yu. / Wilkin, C. / Stroeher, Hans | |
Contributing Institute: |
Experimentelle Hadrondynamik; IKP-2 |
Published in: | The European physical journal / A, 54 (2018) 11, S. 206 |
Imprint: |
Heidelberg
Springer
2018
|
DOI: |
10.1140/epja/i2018-12641-0 |
Document Type: |
Journal Article |
Research Program: |
Accelerator R & D Cosmic Matter in the Laboratory |
Link: |
Restricted Published on 2018-11-30. Available in OpenAccess from 2019-11-30. Published on 2018-11-30. Available in OpenAccess from 2019-11-30. |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/22773 in citations.
The reaction p+d→p+d+X was studied at 0.8-2.0 GeV proton beam energies with the ANKE magnetic spectrometer at the COSY synchrotron storage ring. The proton-deuteron pairs emerging with high momenta, 0.6-1.8 GeV/c, were detected at small angles with respect to the proton beam. Distribution over the reaction missing mass Mx reveals a local enhancement near the threshold of the pion pair production specific for the so-called ABC effect. The enhancement has a structure of a narrow bump placed above a smooth continuum. The invariant mass of the dππ system in this enhancement region exhibits a resonance-like peak at Mdππ≈2.36 GeV/c2 with the width Γ≈0.10 GeV/c2. A possible interpretation of these features is discussed. |