Differential cross sections , charge production asymmetry , and spin - density matrix elements for D ∗ ± ( 2010
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چکیده
We report differential cross sections for the production of D(2010) produced in 500 GeV/c π-nucleon interactions from experiment E791 at Fermilab, as functions of Feynman-x (xF ) and transverse momentum squared (p 2 T ). We also report theD ∗± charge asymmetry and spin-density matrix elements as functions of these variables. Investigation of the spin-density matrix elements shows no evidence of polarization. The average values of the spin alignment are 〈η〉 = 0.01± 0.02 and −0.01± 0.02 for leading and non-leading particles, respectively.
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تاریخ انتشار 2002