Hadron polarization in e+e- annihilation

Mani, H. S. ; Ramachandran, R. (1983) Hadron polarization in e+e- annihilation Physical Review D, 28 (7). pp. 1775-1777. ISSN 0556-2821

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Official URL: http://prd.aps.org/abstract/PRD/v28/i7/p1775_1

Related URL: http://dx.doi.org/10.1103/PhysRevD.28.1775


We show that while the polarization of the charmed quark produced in e+e- annihilation is of the order of 3% at √s=5 GeV, it gets washed out in subsequent decays. This should therefore cause the polarization of Λ0 produced in e+e-→Λ0X to show a sharp fall as the energy crosses the charm threshold. We discuss ways of measuring charmed-quark polarization in the decays of charmed hadrons.

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