The standard operator definition of fragmentation functions is shown to follow from collinear factorization for small-mass n-hadron final states, contrary to a recently proposed modified definition.
quark” and ϕ is a scalar “hadron
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QCD factorization with multihadron fragmentation functions
The standard operator definition of fragmentation functions is shown to follow from collinear factorization for small-mass n-hadron final states, contrary to a recently proposed modified definition.