Beam-Target Double Spin Asymmetry A[sub]LT[/sub] in Charged Pion Production from Deep Inelastic Scattering on a Transversely Polarized [sup]3[/sup]He Target at 1.4[Q[sup]2[/sup][2.7 GeV[sup]2[/sup]. PDF Download

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Beam-Target Double Spin Asymmetry A[sub]LT[/sub] in Charged Pion Production from Deep Inelastic Scattering on a Transversely Polarized [sup]3[/sup]He Target at 1.4[Q[sup]2[/sup][2.7 GeV[sup]2[/sup].

Beam-Target Double Spin Asymmetry A[sub]LT[/sub] in Charged Pion Production from Deep Inelastic Scattering on a Transversely Polarized [sup]3[/sup]He Target at 1.4[Q[sup]2[/sup][2.7 GeV[sup]2[/sup]. PDF Author:
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Languages : en
Pages : 6

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Book Description
We report the first measurement of the double-spin asymmetry ALT for charged pion electroproduction in semi-inclusive deep inelastic electron scattering on a transversely polarized 3He target. The kinematics focused on the valence quark region, 0.16 x 0.35 with 1.4 Qsup2/sup 2.7 GeVsup2/sup. The corresponding neutron AsubLT/sub asymmetries were extracted from the measured sup3/supHe asymmetries and proton/sup3/supHe cross section ratios using the effective polarization approximation. These new data probe the transverse momentum dependent parton distribution function gsub 1T/subsupq/sup and therefore provide access to quark spin-orbit correlations. Our results indicate a positive azimuthal asymmetry for?sup-