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2001•AIP conference proceedingsRequires access

HERMES at the turn of the millennium

E. C. Aschenauer

Open publisher page 1 citations

Abstract

This report highlight results from the HERMES experiment from the last 5 years on the spin structure of the nucleon. The inclusive spin-structure function g1(x,Q2) is described, followed by measurements of the flavor-separated quark polarizations based on semi-inclusive data. Next, first measurements are presented that indicate that both the gluon polarization and the transversity distribution h1(x) are non-zero. Finally, the subject of parton-parton correlations is introduced, along with new data related to higher twist effects and skewed parton distributions.

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What this paper is about

This report highlight results from the HERMES experiment from the last 5 years on the spin structure of the nucleon. The inclusive spin-structure function g1(x,Q2) is described, followed by measurements of the flavor-separated quark polarizations based on semi-inclusive data. Next, first measurements are presented that indicate that both the gluon polarization and the transversity distribution h1(x) are non-zero. Finally, the subject of parton-parton correlations is introduced, along with new data related to higher twist effects and skewed parton distributions.

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Available abstract

This report highlight results from the HERMES experiment from the last 5 years on the spin structure of the nucleon. The inclusive spin-structure function g1(x,Q2) is described, followed by measurements of the flavor-separated quark polarizations based on semi-inclusive data. Next, first measurements are presented that indicate that both the gluon polarization and the transversity distribution h1(x) are non-zero. Finally, the subject of parton-parton correlations is introduced, along with new data related to higher twist effects and skewed parton distributions.

Key concepts: Parton, Particle physics, Physics, Structure function, Quark, Nucleon, Gluon, Polarization (electrochemistry)

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