Semi-inclusive hadron-hadron transverse spin asymmetries and their implication for polarized DIS

M. Boglione; E. Leader

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arXiv · hep-ph/0005092

Semi-inclusive hadron-hadron transverse spin asymmetries and their implication for polarized DIS

M. Boglione·E. Leader

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Abstract

We discuss a possible explanation of the 25 year old mystery of the large transverse spin asymmetries found in many semi-inclusive hadron-hadron reactions. We obtain the first reliable information about the transverse polarized quark densities Delta_T q(x) and we find surprising implications for the usual, longitudinal, polarized DIS. The plan of the presentation is as follows: 1) A brief reminder about the internal structure of the nucleon. 2) The transverse asymmetries. 3) Why it is so difficult to explain the asymmetries. 4) Failure and then success using a new soft mechanism. 5) implications for polarized DIS.

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M. Boglione, E. Leader. 2000-05-12. Semi-inclusive hadron-hadron transverse spin asymmetries and their implication for polarized DIS. https://arxiv.org/abs/hep-ph/0005092

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