@article{33131007549b45499f3d5b8d8d49172a,
title = "Measurement of the beam-helicity asymmetry in photoproduction of π0η pairs on carbon, aluminum, and lead",
abstract = "The beam-helicity asymmetry was measured, for the first time, in photoproduction of π0η pairs on carbon, aluminum, and lead, with the A2 experimental setup at MAMI. The results are compared to an earlier measurement on a free proton and to the corresponding theoretical calculations. The Mainz model is used to predict the beam-helicity asymmetry for the nuclear targets. The present results indicate that the photoproduction mechanism for π0η pairs on nuclei is similar to photoproduction on a free nucleon. This process is dominated by the D33 partial wave with the ηΔ(1232) intermediate state.",
author = "{A2 Collaboration at MAMI} and V. Sokhoyan and S. Prakhov and A. Fix and S. Abt and P. Achenbach and P. Adlarson and F. Afzal and P. Aguar-Bartolom{\'e} and Z. Ahmed and K. Altangerel and Annand, {J. R.M.} and Arends, {H. J.} and K. Bantawa and M. Bashkanov and R. Beck and M. Biroth and Borisov, {N. S.} and A. Braghieri and Briscoe, {W. J.} and S. Cherepnya and F. Cividini and C. Collicott and S. Costanza and A. Denig and M. Dieterle and Downie, {E. J.} and P. Drexler and {Ferretti Bondy}, {M. I.} and Fil'kov, {L. V.} and S. Gardner and S. Garni and Glazier, {D. I.} and I. Gorodnov and W. Gradl and M. G{\"u}nther and Gurevich, {G. M.} and L. Heijkenskj{\"o}ld and D. Hornidge and Huber, {G. M.} and A. K{\"a}ser and Kashevarov, {V. L.} and S. Kay and I. Keshelashvili and R. Kondratiev and M. Korolija and B. Krusche and A. Lazarev and K. Livingston and S. Lutterer and G. Ron",
note = "Publisher Copyright: {\textcopyright} 2020 The Author(s)",
year = "2020",
month = mar,
day = "10",
doi = "10.1016/j.physletb.2020.135243",
language = "אנגלית",
volume = "802",
journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",
issn = "0370-2693",
publisher = "Elsevier B.V.",
}