@article{8d81ed3ee2c64f1f9523ab3b8ba77182,
title = "Flavor asymmetry of the light quark sea from semi-inclusive deep-inelastic scattering",
abstract = "The flavor asymmetry of the light quark sea of the nucleon is determined in the kinematic range 0.02 < x < 0.3 and 1 < Q2 < 10GeV2 for the first time from semi-inclusive deep-inelastic scattering. The quantity [d¯(x)- ¯u(x)]/[u(x)-d(x)] is derived from a relationship between the yields of positive and negative pions from unpolarized hydrogen and deuterium targets. The flavor asymmetry d¯ - u¯ is found to be nonzero and x dependent, showing an excess of d¯ over u¯ quarks in the proton.",
author = "K. Ackerstaff and A. Airapetian and N. Akopov and I. Akushevich and M. Amarian and Aschenauer, \{E. C.\} and H. Avakian and R. Avakian and A. Avetissian and B. Bains and C. Baumgarten and M. Beckmann and St Belostotski and Belz, \{J. E.\} and Th Benisch and S. Bernreuther and N. Bianchi and J. Blouw and H. B{\"o}ttcher and A. Borissov and J. Brack and S. Brauksiepe and B. Braun and B. Bray and St Brons and W. Br{\"u}ckner and A. Br{\"u}ll and Bruins, \{E. E.W.\} and Bulten, \{H. J.\} and Cadman, \{R. V.\} and Capitani, \{G. P.\} and P. Carter and P. Chumney and E. Cisbani and Court, \{G. R.\} and Dalpiaz, \{P. F.\} and Sanctis, \{E. De\} and Schepper, \{D. De\} and E. Devitsin and \{de Witt Huberts\}, \{P. K.A.\} and \{Di Nezza\}, P. and M. D{\"u}ren and A. Dvoredsky and G. Elbakian and A. Fantoni and A. Fechtchenko and M. Ferstl and K. Fiedler and Filippone, \{B. W.\} and W. Korsch",
year = "1998",
doi = "10.1103/PhysRevLett.81.5519",
language = "English",
volume = "81",
pages = "5519--5523",
number = "25",
}