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arxiv 1909.00017 v3 pith:AAYOBGKJ submitted 2019-08-30 hep-ph

Inverse Radon transform and the transverse-momentum dependent functions

classification hep-ph
keywords dependentfunctionsinversepartonradonrepresentationtransformtransverse-momentum
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We revisit the standard representation of the (inverse) Radon transform which is well-known in the mathematical literature. We extend this representation to the case involving the parton distributions. We have found the new additional contribution which is essentially related to the generalized transverse-momentum dependent parton distribution and double-distribution functions. We discuss the possible relationship of this term with the Sivers function.

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