@article{oai:tsukuba.repo.nii.ac.jp:00052287,
 author = {江角, 晋一 and ESUMI, ShinIchi and STA Collaboration},
 issue = {3},
 journal = {Physical review D},
 month = {Aug},
 note = {The STAR Collaboration reports measurements of the longitudinal double-spin asymmetry, ALL, for neutral pions produced at forward directions in polarized proton-proton collisions, at a center-of-mass energy of 510 GeV. Results are given for transverse momenta in the range 2<pT<10??GeV/c within two regions of pseudorapidity that span 2.65<η<3.9. These results are sensitive to the polarized gluon parton distribution function, Δg(x), down to the region of Bjorken x?10?3. The asymmetries observed are less than ±5×10?3 in magnitude and will help constrain the contribution to the spin of the proton from polarized gluons at low x, when combined with other measurements as part of a global analysis.},
 title = {Longitudinal double-spin asymmetries for π0s in the forward direction for 510 GeV polarized pp collisions},
 volume = {98},
 year = {2018},
 yomi = {エスミ, シンイチ}
}