Abstract.
The reaction γp → K0Σ+ was measured in the photon energy range from threshold up to 2.6 GeV with the SAPHIR detector at the electron stretcher facility, ELSA, in Bonn. Results are presented on the reaction cross-section and the polarization of the Σ+ as a function of the kaon production angle in the centre-of-mass system, cosΘc.m.K, and the photon energy. The cross-section is lower and varies less with photon energy and kaon production angle than that of γp → K+Σ0. The Σ+ is polarized predominantly at cosΘc.m.K ≈ 0. The data presented here are more precise than previous ones obtained with SAPHIR and extend the photon energy range to higher values. They are compared to isobar model calculations.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
S. Capstick, W. Roberts, Phys. Rev. D 58, 074011 (1998).
U. Löring, K. Kretzschmar, B.Ch. Metsch, H.R. Petry, Eur. Phys. J. A 10, 309 (2001)
The SAPHIR Collaboration (K.-H. Glander), Eur. Phys. J. A 19, 251 (2004).
The SAPHIR Collaboration (S. Goers), Phys. Lett. B 464, 331 (1999).
The SAPHIR Collaboration (W.J. Schwille), Nucl. Instrum. Methods A 344, 470 (1994).
D. Husmann, W.J. Schwille, Phys. Bl. 44, 40 (1988).
R. Burgwinkel, doctoral thesis, Bonn University (1996), Bonn-IR-9602
K.-H. Glander, doctoral thesis, Bonn University (2003), Bonn-IR-2003-05, http://saphir.physik.uni-bonn.de/ saphir/thesis.html.
R. Lawall, Messung der Reaktion $\gamma p \rightarrow K^0 \Sigma^+$ für Photonenergien bis $2.65$ GeV mit dem SAPHIR-Detektor an ELSA, doctoral thesis, Bonn University, BONN-IR-2004-01, http://saphir.physik.uni-bonn.de/saphir/ thesis.html.
Aachen-Berlin-Bonn-Hamburg-Heidelberg-München Collaboration, Phys. Rev. 188, 2060 (1969).
T.D. Lee, J. Steinberger, G. Feinberg, P.K. Kabir, C.N. Yang, Phys. Rev. 106, 1367 (1957)
Review of Particle Physics (S. Eidelman), Phys. Lett. B 592, 1 (2004).
C. Bennhold, T. Mart, preprint nucl-th/9901066
KAON-MAID: http : / / www.kph.uni-mainz.de / MAID / kaon/kaonmaid.html.
The SAPHIR Collaboration (M.Q. Tran), Phys. Lett. B 445, 20 (1998).
T. Mart, C. Bennhold, C.E. Hyde-Wright, Phys. Rev. C 51, 1074 (1995).
T. Mart, S. Sumowidagdo, C. Bennhold, H. Haberzettl, preprint nucl-th/0002036.
T. Mart, A. Sulaksono, C. Bennhold, in Proceedings of the International Symposium on Electrophotoproduction of Strangeness on Nucleons and Nuclei (SENDAI 03), Sendai, Japan, 16-18 June 2003, edited by K. Maeda, H. Tamura, S.N. Nakamura, O. Hashimoto (World Scientific, Singapore, 2004) p. 65, preprint nucl-th/0411035.
Author information
Authors and Affiliations
Corresponding author
Additional information
Th. Walcher
Rights and permissions
About this article
Cite this article
Lawall, R., Barth, J., Bennhold, C. et al. Measurement of the reaction γp → K0Σat photon energies up to 2.6 GeV⋆. Eur. Phys. J. A 24, 275–285 (2005). https://doi.org/10.1140/epja/i2005-10002-x
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1140/epja/i2005-10002-x