Test of spin dependence in charm-quark fragmentation to $D^*$

We have measured the polarization of D*, the energy dependence of the polarization, and the spin-density matrix of D* in e+e− annihilation at a center-of-mass energy of 29 GeV using the Time Projection Chamber detector at the SLAC storage ring PEP. In 147 pb−1 of data we see no strong evidence for polarization, alignment, or final-state interactions in this fragmentation process.

electron positron: colliding beams
colliding beams: electron positron
electron positron: annihilation
annihilation: electron positron
quark: charm
quark: fragmentation
D*(2010): electroproduction
electroproduction: D*(2010)
D*(2010): nonleptonic decay
nonleptonic decay: D*(2010)

References(25)

Figures(0)

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