On the polarization of low mass dimuons produced in hadronic interactions
We have examined the angular distribution of massive μ+μ− pairs produced in 22 GeV/c π−Cu interactions. We find that the virtual photons which give rise to the process γv→μ+μ− are mainly longitudinally polarized. This contradicts the simple quark-antiquark annihilation model indicating that this is not the dominant production mechanism for the bulk of the data. However, for large fractional momentum of the incident q better agreement with the gq annihilation hypothesis is obtained. © 1980, All rights reserved.
Publication Source (Journal or Book title)
"Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics"
Youngquist, R., LeBritton, J., McCal, D., Metcalf, W., Melissinos, A., Alspector, J., Borenstein, S., Kalbfleisch, G., Strand, R., & Abashian, A. (1980). On the polarization of low mass dimuons produced in hadronic interactions. "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics", 95 (3-4), 457-460. https://doi.org/10.1016/0370-2693(80)90189-6