First Glances at the Transversity Parton Distribution through Dihadron Fragmentation Functions

被引：84
作者：
Bacchetta, Alessandro [1 ,2 ]
Courtoy, Aurore [2 ]
Radici, Marco [2 ]
机构：
[1] Univ Pavia, Dipartimento Fis Nucl & Teor, I-27100 Pavia, Italy
[2] Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy
来源：
PHYSICAL REVIEW LETTERS | 2011年 / 107卷 / 01期
关键词：
EVOLUTION; QUARKS; POLARIZATION;
D O I：
10.1103/PhysRevLett.107.012001
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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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页数：4
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