Measurement of single- and double-spin asymmetries in deep inelastic pion electroproduction with a longitudinally polarized target.
Measurement of single- and double-spin asymmetries in deep inelastic pion electroproduction with a longitudinally polarized target.
复制标题
使用纵向极化靶测量深部非弹性π介子电生产中的单自旋和双自旋不对称性。
DOI:
10.1103/physrevlett.105.262002
复制
发表时间:
2010
影响因子:
8.6
通讯作者:
Avakian H
中科院分区:
文献类型:
--
作者:
Avakian H
We report the first measurement of the transverse momentum dependence of double-spin asymmetries in semi-inclusive production of pions in deep-inelastic scattering off the longitudinally polarized proton. Data have been obtained using a polarized electron beam of 5.7 GeV with the CLAS detector at the Jefferson Lab (JLab). Modulations of single spin asymmetries over the azimuthal angle between lepton scattering and hadron production planeshave been measured over a wide kinematic range in Bjorkenand virtual photon squared four-momentum. A significant nonzero sin2ϕ single spin asymmetry was observed for the first time indicating strong spin-orbit correlations for transversely polarized quarks in the longitudinally polarized proton.
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
N. P. M. Brantjes;G. Onderwater;M. D. S. E. Silva
通讯作者:
M. D. S. E. Silva
DOI:
--
发表时间:
--
期刊:
影响因子:
--
作者:
通讯作者:
--