Azimuthal and single spin asymmetries in hard scattering processes
نویسندگان
چکیده
منابع مشابه
Single spin asymmetries and gauge invariance in hard scattering processes
Comparison of relativistic bound-state calculations in front-form and instant-form dynamics , Few Body Syst. 33, 27 (2003). New observables in longitudinal single-spin asymmetries in semi-inclusive DIS, Gauge link structure in quark-quark correlators in hard processes,
متن کاملAzimuthal Spin Asymmetries in Hadronic Processes
The role of gauge invariance in single-spin asymmetries. The Sivers single-spin asymmetry in photon-jet production. DESY-07-028 (2007), hep-ph/0703153. Single-transverse spin asymmetry in dijet correlations at hadron colliders. Gluonic pole cross-sections and single spin asymmetries in hadron-hadron scattering. JHEP 02, 029 (2007), hep-ph/0609206. The construction of gauge-links in arbitrary ha...
متن کاملUniversality of Single Spin Asymmetries in Hard Processes *
We discuss the use of time reversal symmetry in the classification of parton cor-relators. Specifically, we consider the role of (small) intrinsic transverse momenta in these correlators and the determination of the proper color gauge link. The transverse momentum weighted correlators in hard processes can be expressed as a product of universal gluonic pole matrix elements and gluonic pole cros...
متن کاملSingle - spin Azimuthal Asymmetries in the “ Reduced Twist - 3 Approximation ”
We consider the single-spin azimuthal asymmetries recently measured at the HERMES experiment for charged pions produced in semi-inclusive deep inelas-tic scattering of leptons off longitudinally polarized protons. Guided by the experimental results and assuming a vanishing twist-2 transverse quark spin distribution in the longitudinally polarized nucleon, denoted as " reduced twist-3 approximat...
متن کاملAzimuthal single-spin asymmetries in semi-inclusive deep-inelastic scattering on a transversely polarised hydrogen target
Azimuthal single-spin asymmetries (SSA) in semi-inclusive electroproduction of charged pions and kaons in deep-inelastic scattering of positrons on a transversely polarised hydrogen target were observed. SSA amplitudes for both the Collins and the Sivers mechanism are presented.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Progress in Particle and Nuclear Physics
سال: 2008
ISSN: 0146-6410
DOI: 10.1016/j.ppnp.2008.01.001