Polarization observable measurements for γp → K

A. Lleres, O. Bartalini, V. Bellini, J.P. Bocquet, P. Calvat, M. Capogni, L. Casano, M. Castoldi, A. D'Angelo, J.-P. Didelez, R. Di Salvo, A. Fantini, C. Gaulard, G. Gervino, F. Ghio, B. Girolami, A. Giusa, M. Guidal, E. Hourany, V. KouznetsovR. Kunne, A. Lapik, P. Levi Sandri, D. Moricciani, A.N. Mushkarenkov, V. Nedorezov, L. Nicoletti, C. Perrin, C. Randieri, D. Rebreyend, F. Renard, N. Rudnev, T. Russew, G. Russo, C. Schaerf, M.-L. Sperduto, M.-C. Sutera, A. Turinge

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Abstract

Beam asymmetries and hyperon recoil polarizations for the reactions γp → K +Λ and γp → K +∑0 have been measured from the threshold production to 1500MeV with the GRAAL facility located at the ESRF in Grenoble. These results complement the database for the beam asymmetry, covering for the first time the production threshold region. Recent theoretical analyses are presented for which the beam asymmetry data bring interesting new information and allow to better determine some resonance parameters. Most importantly, these results strengthen the need of a new D13 state around 1900MeV. © 2007 Società Italiana di Fisica and Springer-Verlag.
Original languageEnglish
Pages (from-to)79 - 93
Number of pages15
JournalEuropean Physical Journal A
Volume31
Issue number1
DOIs
Publication statusPublished - Jan 2007
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

Lleres, A., Bartalini, O., Bellini, V., Bocquet, J. P., Calvat, P., Capogni, M., ... Turinge, A. (2007). Polarization observable measurements for γp → K. European Physical Journal A, 31(1), 79 - 93. https://doi.org/10.1140/epja/i2006-10167-8