This title appears in the Scientific Report :
2008
Please use the identifier:
http://hdl.handle.net/2128/10482 in citations.
Please use the identifier: http://dx.doi.org/10.1016/j.physletb.2008.01.051 in citations.
Energy depence of forward 1S0 diproton production in the pp -> pp pi0 reaction
Energy depence of forward 1S0 diproton production in the pp -> pp pi0 reaction
The pp -> {pp}(s)pi(0) differential cross section has been measured with the ANKE spectrometer at COSY-Mlich for seven proton beam energies T-p between 0.51 and 1.97 GeV. By selecting proton pairs with an excitation energy of less than 3 MeV it is ensured that the final {pp}(s) system is in the S...
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Personal Name(s): | Kurbatov, V. |
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Büscher, M. / Dymov, S. / Gusev, D. / Hartmann, M. / Kacharava, A. / Khoukaz, A. / Komarov, V. / Kulikov, A. / Macharashvili, G. / Mersmann, T. / Merzliakov, S. / Mikirtytchiants, S. / Prasuhn, D. / Rathmann, F. / Schleichert, R. / Ströher, H. / Tsirkov, D. / Uzikov, Yu. / Wilkin, C. / Yaschenko, S. | |
Contributing Institute: |
Experimentelle Hadrondynamik; IKP-2 |
Published in: | Physics letters / B, 661 (2008) S. 22 - 27 |
Imprint: |
Amsterdam
North-Holland Publ.
2008
|
Physical Description: |
22 - 27 |
DOI: |
10.1016/j.physletb.2008.01.051 |
Document Type: |
Journal Article |
Research Program: |
Physik der Hadronen und Kerne |
Series Title: |
Physics Letters B
661 |
Subject (ZB): | |
Link: |
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Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1016/j.physletb.2008.01.051 in citations.
The pp -> {pp}(s)pi(0) differential cross section has been measured with the ANKE spectrometer at COSY-Mlich for seven proton beam energies T-p between 0.51 and 1.97 GeV. By selecting proton pairs with an excitation energy of less than 3 MeV it is ensured that the final {pp}(s) system is in the S-1(0) state. In the measured region of theta(cm)(pp) less than or similar to 18 degrees the data reveal a forward dip for T-p <= 1.4 GeV whereas a forward peaking seen at 1.97 GeV. The energy dependence of the forward cross section shows a broad peak in the 0.6-0.8 GeV region, probably associated with Delta(1232) excitation. and a minimum at 1.4 GeV Some of these features are similar to those observed for the spin-isospin partner reaction, pp -> d pi(+). However. the ratio of the forward differential cross sections of the two reactions shows a significant suppression of single pion production associated with a spin-singlet final nucleon pair. (c) 2008 Elsevier B.V. All rights reserved. |