Transverse spin effects in diffractive hadron leptoproduction
نویسندگان
چکیده
منابع مشابه
Single hadron transverse spin asymmetries from COMPASS
Transverse spin physics is an important part of the scientific programme of the COMPASS experiment at CERN. The analysis of the data taken with the target polarized orthogonally to the 160 GeV/c muon beam momentum has allowed to measure for the first time the Collins and Sivers asymmetries of the deuteron. Both for the positive and the negative hadrons produced in semi-inclusive DIS the measure...
متن کاملDiffractive leptoproduction of vector mesons in QCD.
We demonstrate that the distinctive features of the forward differential cross section of diffractive leptoproduction of a vector meson can be legitimately calculated in perturbative QCD in terms of the light-cone qq̄ wave function of the vector meson and the gluon distribution of the target. In particular, we calculate the Q2 and nuclear dependence of the diffractive leptoproduction of vector m...
متن کاملDiffractive ρ-meson Leptoproduction on Polarized Nucleon
The amplitude of diffractive ρ (and open quark) leptoproduction on a polarized target is calculated in the leading log approximation of pQCD using the hadron-parton duality hypothesis. The spin-spin asymmetry is expressed in terms of the spin dependent gluon and quark structure functions in the small x region. Therefore the γ∗+p → ρ+ p reaction provides a promising tool to study the spin depend...
متن کاملSingle transverse spin asymmetries in inclusive hadron production
A consistent phenomenological approach to the computation of transverse single spin asymmetries in inclusive hadron production is presented, based on the assumed generalization of the QCD factorization theorem to the case in which quark intrinsic motion is taken into account. New k⊥ and spin dependent quark distribution and fragmentation functions are considered: some of them are fixed by fitti...
متن کاملTransverse spin effects in COMPASS
In the years 2002-2004 COMPASS has collected data with the LiD target polarization oriented transversely with respect to the muon beam direction for about 20% of the running time, to measure transverse spin effects in semi-inclusive deep inelastic scattering, one of the main objectives of the COMPASS spin program. In 2007, COMPASS has used for the first time a proton NH3 target with the data ta...
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: The European Physical Journal C
سال: 2002
ISSN: 1434-6044,1434-6052
DOI: 10.1007/s10052-002-0952-8