Abstract
The flavor asymmetry of the light quark sea of the nucleon is determined in the kinematic range and for the first time from semi-inclusive deep-inelastic scattering. The quantity is derived from a relationship between the yields of positive and negative pions from unpolarized hydrogen and deuterium targets. The flavor asymmetry is found to be nonzero and dependent, showing an excess of over quarks in the proton.
- Received 15 July 1998
DOI:https://doi.org/10.1103/PhysRevLett.81.5519
©1998 American Physical Society