• Medientyp: E-Artikel
  • Titel: Accessing transversity via J/Psi production in polarized p-pbar interactions
  • Beteiligte: Anselmino, M. [VerfasserIn]; Barone, V. [VerfasserIn]; Drago, A. [VerfasserIn]; Nikolaev, N. N. [VerfasserIn]
  • Erschienen: North-Holland Publ., 2004
  • Erschienen in: Physics letters / B 594, 97 - 104 (2004). doi:10.1016/j.physletb.2004.05.029
  • Sprache: Englisch
  • DOI: https://doi.org/10.1016/j.physletb.2004.05.029
  • ISSN: 0370-2693
  • Schlagwörter: numerical calculations ; spin: asymmetry ; polarization: transverse ; J/psi(3100): leptonic decay ; anti-p: polarized beam ; lepton: pair production ; p: polarized beam ; quark: polarization ; Drell-Yan process ; anti-p p: inclusive reaction ; J/psi(3100): hadroproduction
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  • Beschreibung: We discuss the possibility of a direct access to transversity distributions by measuring the double transverse spin asymmetry A(TT) in p(up arrow)(p) over bar (up arrow) --> J/psiX --> l(-)l(+)X processes at future GSI-HESR experiments with polarized protons and anti-protons. In the J/psi resonance production region, with 30 less than or similar to s less than or similar to 45 GeV2, both the cross-section and A(TT) are expected to be sufficiently large to allow a measurement of h(l)(q) (x, M-2); numerical estimates are given. (C) 2004 Elsevier B.V. All rights reserved.
  • Zugangsstatus: Freier Zugang