Rotation-invariant relations in vector meson decays into fermion pairs

Abstract

The rotational properties of angular momentum eigenstates imply the existence of a frame-independent relation among the parameters of the decay distribution of vector mesons into fermions. This relation is a generalization of the Lam-Tung identity, a result specific to Drell-Yan production in perturbative QCD, here shown to be equivalent to the dynamical condition that the dilepton always originates from a transversely polarized photon.

References in corpus (3)

• A new approach to quarkonium polarization studies
• Drell-Yan production and Lam-Tung relation in the Color Glass Condensate formalism
• Transverse momentum dependence of the angular distribution of the Drell-Yan process

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