منابع مشابه
Hadron Spin Dynamics ∗
Spin effects in exclusive and inclusive reactions provide an essential new dimension for testing QCD and unraveling hadron structure. Remarkable new experiments from SLAC, HERMES (DESY), and Jefferson Lab present many challenges to theory, including measurements at HERMES and SMC of the single spin asymmetries in ep→ e′πX where the proton is polarized normal to the scattering plane. This type o...
متن کاملSingle spin asymmetries in hadron-hadron collisions
We study weighted azimuthal single spin asymmetries in hadron-hadron scattering using the diagrammatic approach at leading order and assuming factorization. The effects of the intrinsic transverse momenta of the partons are taken into account. We show that the way in which T -odd functions, such as the Sivers function, appear in these processes does not merely involve a sign flip when compared ...
متن کاملSpin in Hadron Reactions
The Relativistic Heavy Ion Collider (RHIC) has brought the study of spin effects in hadronic collisions to a new energy regime. In conjunction with other experiments at facilities around the world, much can be learned from the high-energy polarized proton collisions RHIC provides, allowing the collider to serve as a powerful tool to continue to understand the rich subtleties and surprises of sp...
متن کاملSpin Polarization of Hyperons in the Hadron-hadron Inclusive Collisions
The high energy hadron-hadron collisions produce various hyperons, in which large spin polarizations perpendicular to a production plane are observed at high Feynman-x (xF ) and low transverse momentum pT . For these collisions, we have proposed a global model on the basis of quark rearrangements concept. In order to produce a final state hyperon at high xF , we consider possible rearrangement ...
متن کاملSpin-Spin Correlations of Top Quark Pairs at Hadron Colliders
Top quark pairs are produced with strongly correlated spins in the partonic reactions qq̄ → tt̄ and gg → tt̄. A complete description of these effects in terms of the spin density matrix of the tt̄ system in leading order QCD is given. We further discuss the prospects to observe the spin-spin correlations at pp̄ and pp colliders by measuring suitable angular correlations among the t and t̄ decay produ...
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ژورنال
عنوان ژورنال: International Journal of Modern Physics A
سال: 2003
ISSN: 0217-751X,1793-656X
DOI: 10.1142/s0217751x03015027