This title appears in the Scientific Report :
2004
Please use the identifier:
http://dx.doi.org/10.1140/epja/i2004-10004-2 in citations.
Please use the identifier: http://hdl.handle.net/2128/13302 in citations.
Near threshold production of a0(980)-mesons in the reaction pp -> dK+ anti-K0
Near threshold production of a0(980)-mesons in the reaction pp -> dK+ anti-K0
Using an effective Lagrangian approach as well as the Quark-Gluon Strings Model, we analyze near-threshold production of a(0)(980)-mesons in the reaction NN --> dK (K) over bar as well as the background of non-resonant K (K) over bar -pair production. We argue that the reaction pp --> dK+(K) o...
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Personal Name(s): | Grishina, V. Yu. |
---|---|
Kondratyuk, L. A. / Büscher, M. / Cassing, W. | |
Contributing Institute: |
Institut 2 (Experimentelle Kernphysik II); IKP-E-2 |
Published in: | The @European physical journal / A, 21 (2004) S. 507 - 520 |
Imprint: |
Berlin
Springer
2004
|
Physical Description: |
507 - 520 |
DOI: |
10.1140/epja/i2004-10004-2 |
Document Type: |
Journal Article |
Research Program: |
Physik der Hadronen |
Series Title: |
European Physical Journal A
21 |
Subject (ZB): | |
Link: |
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Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/13302 in citations.
Using an effective Lagrangian approach as well as the Quark-Gluon Strings Model, we analyze near-threshold production of a(0)(980)-mesons in the reaction NN --> dK (K) over bar as well as the background of non-resonant K (K) over bar -pair production. We argue that the reaction pp --> dK+(K) over bar (0) at an energy release Q less than or equal to 100 MeV is dominated by the intermediate production of the a(0)(980)-resonance. At larger energies the non-resonant K+(K) over bar (0)-pair production-where the kaons are produced in a relative P-wave-becomes important. The effects of final-state interactions are evaluated in a unitarized scattering length approach and found to be in the order of a 20% suppression close to threshold. Thus, in present experiments at the Cooler Synchrotron COSY-Julich for Q less than or equal to 107 MeV the a(0)(+) signal can reliably be separated from the non-resonant K+(K) over bar (0) background. |