Inclusive double-helicity asymmetries in neutral-pion and eta-meson production in + collisions at = 200 GeV

Imai, Kenichi; Tanida, Kiyoshi ; PHENIX Collaboration*; 378 of others*

Results are presented from data recorded in 2009 by the PHENIX experiment at the Relativistic Heavy Ion Collider for the double-longitudinal spin asymmetry, $A_{LL}$ for and production in = 200 GeV polarized + collisions. The effect of adding the new 2009 data to a recent global analysis of polarized scattering data is shown, resulting in a best fit value = 0.06 $_{-0.15}^{+0.11}$ in the range 0.05 0.2.

Language	:	English
Journal	:	Physical Review D
Volume	:	90
Number	:	1
Pages	:	p.012007_1 - 012007_19
Publication Year/Month	:	2014/07
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PDF	:	AA2014-0582.pdf:1.66MB
Paper URL	:	https://doi.org/10.1103/PhysRevD.90.012007
DOI for research data	:	Link to research data related to this paper/report.
Keywords	:	no keyword
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Registration No. : AA20140582
JAEA Abstracts No. : 44000995
Paper Submission No. : 17683

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