https://doi.org/10.1051/epjconf/201919902020
Mesons in NA61/SHINE
Institute of Nuclear Physics, Polish Academy of Sciences, PL-31342 Kraków, Poland
* e-mail: antoni.marcinek@gmail.com
Published online: 1 February 2019
This contribution presents a selection of recent results on meson production from the NA61/SHINE experiment. The results include spectra of ø mesons in p + p collisions at 40, 80 and 158 GeV/c beam momenta, as well as π±, K±, ρ0, ω and K*0 mesons in π− + C collisions at 158 GeV/c and 350 GeV/c. They are compared with predictions of several models. A spectacular failure of considered models is observed for ø, ρ0 and K*0 production. Also a very peculiar system size dependence of the longitudinal evolution of ø production, contrasting with all other measured hadrons, is shown. Finally, preliminary results on spectator-induced electromagnetic effects in π± production in Ar + Sc at 150A GeV/c are presented, bringing information on space-time evolution of the hot and dense matter created in the collision.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
