This title appears in the Scientific Report :
2007
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevC.75.015204 in citations.
Please use the identifier: http://hdl.handle.net/2128/10563 in citations.
Experimental study of the pd-->3He K+K- and pd-->3He phi reactions close to threshold
Experimental study of the pd-->3He K+K- and pd-->3He phi reactions close to threshold
Two-kaon production in proton-deuteron collisions has been studied at three energies close to threshold using a calibrated magnetic spectrograph to measure the final He-3 and a vertex detector to measure the K+K- pair. Differential and total cross sections are presented for the production of phi-mes...
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Personal Name(s): | Bellemann, F. |
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Berg, A. / Bisplinghoff, J. / Bohlscheid, G. / Ernst, J. / Henrich, C. / Hinterberger, F. / Ibald, R. / Jahn, R. / Joosten, R. / Kilian, K. / Kozela, A. / Machner, H. / Magiera, A. / Munkel, J. / von Neumann-Cosel, P. / von Rossen, P. / Schnitker, H. / Scho, K. / Smyrski, J. / Tölle, R. / Wilkin, C. | |
Contributing Institute: |
Experimentelle Hadronstruktur; IKP-1 |
Published in: | Physical Review C Physical review / C, 75 75 (2007 2007) 1 1, S. 015204 015204 |
Imprint: |
Woodbury, NY
Inst.
2007
2007-01-17 2007-01-01 |
Physical Description: |
015204 |
DOI: |
10.1103/PhysRevC.75.015204 |
Document Type: |
Journal Article |
Research Program: |
Physik der Hadronen und Kerne |
Series Title: |
Physical Review C
75 |
Subject (ZB): | |
Link: |
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Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/10563 in citations.
Two-kaon production in proton-deuteron collisions has been studied at three energies close to threshold using a calibrated magnetic spectrograph to measure the final He-3 and a vertex detector to measure the K+K- pair. Differential and total cross sections are presented for the production of phi-mesons, decaying through phi -> K+K-, as well as for prompt K+K- production. The prompt production seems to follow phase space in both its differential distributions and in its energy dependence. The amplitude for the pd -> He-3 phi reaction varies little for excess energies below 22 MeV and the value is consistent with that obtained from a threshold measurement. The angular distribution of the K+K- decay pair shows that near threshold the phi-mesons are dominantly produced with polarization m=0 along the initial proton direction. No conclusive evidence for f(0)(980) production is found in the data. |