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Extraction of finite-energy contributions to the Sivers asymmetry from the analysis of exclusive proton-proton scattering

BIANCONI, Andrea
2008-01-01
2008
Ateneo di appartenenza
PE2_2 Particle physics
JOURNAL OF PHYSICS. G, NUCLEAR AND PARTICLE PHYSICS
sì
2-s2.0-54749108294
WOS:000259563900003
Sì, ma tipo non specificato
Inglese
Internazionale
35
115003
-
I study the effect of scalar and spin-orbit rescattering terms, in the production of a nonzero Sivers-like asymmetry in proton-proton collisions (inclusive production and Drell-Yan) at moderate center of mass energies root s < 15 GeV and transverse momentum up to 3 GeV/c. An ultrarelativistic generalization of the Glauber formalism is used here to (i) fit the scalar and spin-orbit interaction terms on proton-proton elastic scattering data, including analyzing power, (ii) transfer such information to inclusive proton-proton scattering. It is shown that the phenomenological interactions responsible for the nonzero analyzing power in proton-proton elastic scattering produce a relevant nonzero analyzing power in inclusive processes associated with proton-proton collisions. This could represent a relevant (possibly higher-twist) contribution to the Sivers asymmetry.
Enti pubb. di ricerca ital.
1
info:eu-repo/semantics/article
262
Bianconi, Andrea
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/11379/36424
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