FIZIKA B 4 (1995) 2, 145-155

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THE SU(2) ASYMMETRY IN THE LIGHT QUARK SEA

ABHIJIT SIDHANTA
Department of Physics, Calcutta University, Calcutta-700 009, India

Received 17 February 1995
Revised manuscript received 27 June 1995

We obtain an analytical expression for the quantity, [`d](x)-[`u](x), which measures the SU(2) asymmetry in the light quark sea, by solving analytically the (non-singlet) evolution equation of QCD, for which Debye's steepest descent method in its orginal rigorous form is used. Our solution is consistent with the recent NMC data concerned, and Regge-behaved as well.

UDC 539.12
PACS 12.38.-t, 12.38.Aw
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