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Azimuthal asymmetries in unpolarized Drell-Yan events on nuclear targets

BIANCONI, Andrea;
2005-01-01
2005
Ateneo di appartenenza
PE2_2 Particle physics
JOURNAL OF PHYSICS. G, NUCLEAR AND PARTICLE PHYSICS
sì
2-s2.0-21244474818
WOS:000230868700011
Sì, ma tipo non specificato
Inglese
Internazionale
31
645
657
12
We show that for Drell-Yan events by unpolarized hadronic projectiles and nuclear targets, azimuthal asymmetries can arise from the nuclear distortion of the hadronic projectile wavefunction, typically a spin-orbit effect occurring on the nuclear surface. The asymmetry depends on quantities that enter also the spin asymmetry in the corresponding Drell-Yan event on polarized free nucleonic targets. Hence, this study can be of help in exploring the spin structure of the nucleon, in particular the transverse spin distribution of partons inside the proton. All arguments can be extended also to antinucleon projectiles and, consequently, apply to possible future measurements involving nuclear targets at the foreseen HESR ring at GSI.
Enti pubb. di ricerca ital.
2
info:eu-repo/semantics/article
262
Bianconi, Andrea; M., Radici
1 Contributo su Rivista::1.1 Articolo in rivista
none
1.1 Articolo in rivista
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11379/36505
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