γp→K+Λ differential cross sections and recoil polarisation data from threshold for extremely forward angles are presented. The measurements were performed at the BGOOD experiment at ELSA, utilising the high angular and momentum resolution forward spectrometer for charged particle identification. The data discriminates between conflicting results in the world data set and enable extraction of the cross section as the minimum momentum transfer to the recoiling hyperon is approached.
@article{arxiv.2006.12350,
title = {$K^+\Lambda$ photoproduction at forward angles and low momentum transfer},
author = {S. Alef and P. Bauer and D. Bayadilov and R. Beck and A. Bella and J. Bieling and A. Braghieri and P. L. Cole and D. Elsner and R. Di Salvo and A. Fantini and O. Freyermuth and F. Frommberger and F. Ghio and S. Goertz and A. Gridnev and D. Hammann and J. Hannappel and T. C. Jude and K. Kohl and N. Kozlenko and A. Lapik P. Levi Sandri and V. Lisin and G. Mandaglio and F. Messi and R. Messi and D. Moricciani and V. Nedorezov and V. A Nikonov and D. Novinskiy and P. Pedroni and A. Polonskiy and B. -E. Reitz and M. Romaniuk and A. V Sarantsev and G. Scheluchin and H. Schmieden and A. Stuglev and V. Sumachev and V. Vegna and V. Tarakanov and T. Zimmermann},
journal= {arXiv preprint arXiv:2006.12350},
year = {2021}
}
Comments
12 pages (including a 2 page appendix), 14 figures