Author:
Feng Yu,Gong Bin,Chang Chao-Hsi,Wang Jian-Xiong
Abstract
Abstract
By applying the nonrelativistic quantum chromodynamics factorization formalism to
hadroproduction, a complete analysis of the polarization parameters
,
, and
for the production is presented at QCD next-to-leading order. With the long-distance matrix elements extracted from experimental data for the production rate and polarization parameter
of
hadroproduction, our results provide a good description of the measured parameters
and
in both the helicity and Collins-Soper frames. In our calculations, the frame invariant parameter
is consistent in the two frames. Finally, we mention that there are discrepancies between the available experimental data and corresponding theoretical predictions for
.
Subject
Astronomy and Astrophysics,Instrumentation,Nuclear and High Energy Physics
Cited by
6 articles.
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