QT RESUMMATION IN TRANSVERSELY POLARIZED DRELL-YAN PROCESS
نویسندگان
چکیده
منابع مشابه
Resummation in Transversely Polarized Drell - Yan Process
Hard processes with polarized nucleon beams enable us to study spin-dependent dynamics of QCD and the spin structure of nucleon. The helicity distribution ∆q(x) of quarks within nucleon has been measured in polarized DIS experiments, and ∆G(x) of gluons has also been estimated from the scaling violations of them. On the other hand, the transversity distribution δq(x), i.e. the distribution of t...
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We calculate the transverse-momentum QT spectrum of the dilepton in the transversely polarized Drell-Yan process on the basis of the factorization theorem in QCD. We take into account universal logarithmically enhanced corrections in edge region of phase space by resumming multiple soft-gluon emissions to all orders in the small QT region.
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We discuss the transverse momentum QT distribution of Drell-Yan pair, produced in collisions of transversely polarized protons. We calculate the transversely polarized Drell-Yan cross section up to order αs in the dimensional regularization scheme, which gives QCD prediction at large QT . For small QT region, we include all-orders resummation of large logarithms due to emission of soft gluons u...
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The results of a recent calculation of the QCD corrections to the longitudinally polarized Drell-Yan process are summarized. In addition to the parity conserving double spin asymmetry which is already accessible in the Drell-Yan production of lepton pairs at fixed target energies, we consider parity violating single spin asymmetries appearing only in the production of massive vector bosons at p...
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Recently, new experiments in polarized hadron collisions have been proposed at the GSI1 (p̄p) and at J-PARC2 (pp). One of the main purposes of these experiments is the measurement of transverse-spin asymmetries in the Drell-Yan process, in order to get information on the transversely polarized parton distribution functions (PDFs) of the nucleon. The proposed experiments would be at relatively mo...
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ژورنال
عنوان ژورنال: International Journal of Modern Physics A
سال: 2006
ISSN: 0217-751X,1793-656X
DOI: 10.1142/s0217751x06032319