Neutral-pion electroproduction on the proton near threshold

van den Brink, H. B. et al. (1995) Neutral-pion electroproduction on the proton near threshold. Physical Review Letters, 74(18), pp. 3561-3564. (doi: 10.1103/PhysRevLett.74.3561)

Abstract

The double-differential coincidence cross section for the reaction 1 H ( e , e ′ p ) π 0 has been measured at Q 2 = 0.1 ( GeV / c ) 2 in a range in the invariant mass of 2–14 MeV above threshold. From the angular dependence of the data values of the pion s -wave multipoles E 0 + and L 0 + have been extracted. The results are compared to predictions from chiral perturbation theory and models based on an effective Lagrangian. None of the models is able to describe both the E 0 + and the L 0 + multipoles.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Ireland, Professor David
• Authors: van den Brink, H. B., Blok, H. P., Bobeldijk, I., Bouwhuis, M., Dodge, G. E., Harakeh, M. N., Hesselink, W. H. A., Ireland, D. G., de Jager, C. W., Jans, E., de Jonge, N., Kalantar-Nayestanaki, N., Kasdorp, W.-J., Ketel, T. J., Konijn, J., Lapikás, L., van Leeuwe, J. J., van der Meer, R. L. J., Nooren, G. J. L., Norum, B. E., Passchier, E., Pellegrino, A. R., Spaltro, C. M., van der Steenhoven, G., Steijger, J. J. M., Templon, J. A., Theunissen, J. A. P., van Uden, M. A., de Vries, H., de Vries, R., and de Witt Huberts, P. K. A.
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Physical Review Letters
• Publisher: American Physical Society
• ISSN: 0031-9007
• ISSN (Online): 1079-7114