************************************************************************** These are published data of the HERMES Collaboration. You are free to use these data in any publication. However, you must make a reference to the following publication: A. Airapetian et al, JHEP 08 (2010) 130 ************************************************************************** HERMES arXiv:1002.3921 (hep-ex) and DESY-10-021 ======================================== Inclusive hadron pairs: measured longitudinal double-spin asymmetry for proton and deuterium targets. The uncertainty shown is statistical only. There is an additional overall normalization uncertainty of 5.2\% (3.9\%) for hydrogen and deuterium. $(\sum{p_{T(beam)}^2})_{min}$ (GeV$^2$) {$A^{meas}$(hh)} hydrogen {$A^{meas}$(hh)} deuterium 1.00 0.023 +\- 0.004 -0.005 +\- 0.003 1.20 0.018 +\- 0.006 -0.005 +\- 0.003 1.40 0.016 +\- 0.008 -0.000 +\- 0.004 2.60 0.031 +\- 2.010 0.001 +\- 0.006 1.80 0.047 +\- 0.013 -0.006 +\- 0.007 2.00 0.041 +\- 0.016 -0.010 +\- 0.009 2.50 0.084 +\- 0.028 -0.028 +\- 0.015 3.00 -0.001 +\- 0.045 -0.041 +\- 0.025 4.00 0.042 +\- 0.108 -0.080 +\- 0.057