Hard Exclusive Production of Tensor Mesons
V. M. Braun, N. Kivel
Abstract
We point out that hard exclusive production of tensor mesons f2(1270) with helicity λ= 2 is dominated by the gluon component in the meson wave function and can be used to determine gluon admixture in tensor mesons in a theoretically clean manner. We present a detailed analysis of the tensor meson distribution amplitudes and calculate the transition form factor γ+γ* f2(1270) for one real and one virtual photon.
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