Longitudinal double-spin asymmetry and cross section for inclusive jet production in polarized proton collisions at square root of s = 200 GeV.
We report a measurement of the longitudinal double-spin asymmetry A(LL) and the differential cross section for inclusive midrapidity jet production in polarized proton collisions at square root of s = 200 GeV. The cross section data cover transverse momenta 5 < pT < 50 GeV/c and agree with next-to-leading order perturbative QCD evaluations. The A(LL) data cover 5 < pT < 17 GeV/c and disfavor at 98% C.L. maximal positive gluon polarization in the polarized nucleon.
Abelev
B I
BI
Yale University, New Haven, Connecticut 06520, USA.
Aggarwal
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Ahammed
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Amonett
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Anderson
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Anderson
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Averichev
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Brandin
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Cadman
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Sánchez
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Chajecki
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Chattopadhyay
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Chen
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