This title appears in the Scientific Report :
2011
Please use the identifier:
http://dx.doi.org/10.1088/1742-6596/295/1/012095 in citations.
Please use the identifier: http://hdl.handle.net/2128/25259 in citations.
Near-threshold pion production in diproton reactions at ANKE
Near-threshold pion production in diproton reactions at ANKE
With the advent of chiral perturbation theory (I PT), the low-energy effective field theory of QCD, accurate calculations have become possible for hadronic reactions. The extension of the approach to pion production in nucleon-nucleon collisions r equires new high precision experimental information...
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Personal Name(s): | Dymov, S. |
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Contributing Institute: |
Experimentelle Hadrondynamik; IKP-2 |
Published in: | Journal of physics / Conference Series, 295 (2011) S. 012095 |
Imprint: |
Bristol
IOP Publ.
2011
|
Physical Description: |
012095 |
DOI: |
10.1088/1742-6596/295/1/012095 |
Document Type: |
Journal Article |
Research Program: |
Physik der Hadronen und Kerne |
Series Title: |
Journal of Physics: Conference Series
295 |
Link: |
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Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/25259 in citations.
With the advent of chiral perturbation theory (I PT), the low-energy effective field theory of QCD, accurate calculations have become possible for hadronic reactions. The extension of the approach to pion production in nucleon-nucleon collisions r equires new high precision experimental information in the near-threshold region. Of especial interest are the processes pp -> {pp}sI (0) and pn -> {pp}sI (-'), with the formation of a (1)S(0) proton pair (diproton) in the final state. The measurement s of dI /d , Ay and the spin-correlation coefficients Ax,x and Ax,z will permit an amplitude analysis that should provide a non-trivial test of the I PT predictions. A combined study of these processes will lead to the isolation of the strength parameter d of the 4NI contact operator in I PT. The ANKE spectrometer is particularly well suited for the study of reactions with a final diproton. The use of the polarised COSY beams and the ANKE polarised internal target allows one to conduct single and double polarisation experiments. Preliminary results on the near-threshold measurements at ANKE of Ay in these processes are presented. The future experimental programme, including the double-polarised experiments, is discussed. |