First glances at the transversity parton distribution through dihadron fragmentation functions |
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Authors: | Bacchetta Alessandro Courtoy Aurore Radici Marco |
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Institution: | Dipartimento di Fisica Nucleare e Teorica, Università di Pavia, Italy. alessandro.bacchetta@unipv.it |
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Abstract: | We present first observations of the transversity parton distribution based on an analysis of pion-pair production in deep-inelastic scattering off transversely polarized targets. The extraction of transversity relies on the knowledge of dihadron fragmentation functions, which we take from electron-positron annihilation measurements. This is the first attempt to determine the transversity distribution in the framework of collinear factorization. |
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