TY  - CONF
AU  - Bacchetta, Alessandro
AU  - Radici, Marco
TI  - Constraining quark angular momentum with the Sivers function
IS  - DESY-PROC-2012-02
CY  - Hamburg
PB  - Deutsches Elektronen-Synchrotron, DESY
M1  - PUBDB-2016-00973
M1  - DESY-PROC-2012-02
SP  - 971-974
PY  - 2012
AB  - The determination of quark angular momentum requires the knowledge of the generalized parton distribution E in the forward limit. We assume a connection between this function and the Sivers transverse-momentum distribution, based on model calculations and theoretical considerations. Using this assumption, we show that it is possible to fit at the same time nucleon magnetic moments and semi-inclusive single-spin asymmetries. This imposes additional constraints on the Sivers function and opens a plausible way to quantifying quark angular momentum.
T2  - 20th International Workshop on Deep-Inelastic Scattering and Related Subjects
CY  - 26 Mar 2012 - 30 Mar 2012, Bonn (Germany)
Y2  - 26 Mar 2012 - 30 Mar 2012
M2  - Bonn, Germany
KW  - quark: angular momentum (INSPIRE)
KW  - Sivers function (INSPIRE)
LB  - PUB:(DE-HGF)8 ; PUB:(DE-HGF)15
DO  - DOI:10.3204/DESY-PROC-2012-02/50
UR  - https://bib-pubdb1.desy.de/record/294061
ER  -