This title appears in the Scientific Report :
2007
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevLett.98.122003 in citations.
Please use the identifier: http://hdl.handle.net/2128/7750 in citations.
Mechanism of Near-Threshold Production of the eta Meson
Mechanism of Near-Threshold Production of the eta Meson
Measurements of the analyzing power for the pp -> pp eta reaction have been performed at excess energies of Q=10 and 36 MeV. The determined analyzing power is essentially consistent with zero, implying dominance of the s wave at both excess energies. The angular dependence of the analyzing power,...
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Personal Name(s): | Czyzcykiewicz, R. |
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Moskal, P. / Adam, H.-H. / Budzanowski, A. / Czerwinski, E. / Gil, D. / Grzonka, D. / Hodana, M. / Janusz, M. / Jarczyk, L. / Kamys, B. / Khoukaz, A. / Kilian, K. / Klaja, P. / Lorentz, B. / Oelert, W. / Piskor-Ignatowicz, B. / Przerwa, J. / Rejdych, B. / Ritman, J. / Sefzick, T. / Siemaszko, M. / Smyrski, J. / Täschner, A. / Ulbrich, K. / Winter, P. / Wolke, M. / Wüstner, P. / Zipper, W. | |
Contributing Institute: |
Experimentelle Hadronstruktur; IKP-1 Zentralinstitut für Elektronik; ZEL |
Published in: | Physical review letters, 98 (2007) S. 122003 |
Imprint: |
College Park, Md.
APS
2007
|
Physical Description: |
122003 |
DOI: |
10.1103/PhysRevLett.98.122003 |
Document Type: |
Journal Article |
Research Program: |
Physik der Hadronen und Kerne |
Series Title: |
Physical Review Letters
98 |
Subject (ZB): | |
Link: |
Get full text OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/7750 in citations.
Measurements of the analyzing power for the pp -> pp eta reaction have been performed at excess energies of Q=10 and 36 MeV. The determined analyzing power is essentially consistent with zero, implying dominance of the s wave at both excess energies. The angular dependence of the analyzing power, combined with the isospin dependence of the total cross section for the eta meson production in nucleon-nucleon collisions, reveal that the excitation of the nucleon to the S-11(1535) resonance is predominantly due to the exchange of the pi meson between the colliding nucleons. |