Distortions in the negative energy Dirac sea: violation of the Gottfried sum rule and ∆¯ u in proton We report on recent work concerning the effect which the change in vacuum structure (negative energy Dirac sea), in the presence of a confining scalar field, has on the nucleon structure functions and parton distributions. Using the Dirac equation in 1+1 dimensions, we show that distortions in t...

In this paper, I intend to present a series of observations concerning the relationship between the Bodhisattvapiṭaka and Akṣayamatinirdeśa. Analysis of these sūtras has shown that the Akṣayamatinirdeśa is greatly indebted to the Bodhisattvapiṭaka for its material, often to the extent of reproducing entire passages from the Bodhisattvapiṭaka verbatim. Presumably in response to changes in curren...

A novel nuclear effect on the flavour asymmetry of anti-quarks in the nucleon bound in a nucleus is discussed in terms of the meson cloud model and the Pauli exclusion principle. It is expected that the flavour asymmetry is enhanced in a nucleus. PACS. 13.60.Hb Nuclear structure functions (flavour asymmetry) – 21.90.+f Mesons in nuclei It is a rather surprising that the distribution of ū is dif...

We give a brief summary of the Gottfried sum rule and a flavor asymmetric distribution ¯ u− ¯ d in the nucleon. First, experimental history of the sum-rule studies is discussed. Second, future prospects for studying the asymmetry at Fermilab and RHIC are discussed. We also comment on possible nuclear modification.

The Pauli exclusion principle is advocated for constructing the proton and neutron deep inelastic structure functions in terms of Fermi-Dirac distributions that we parametrize with very few parameters. It allows a fair description of the recent NMC data on F p 2 (x, Q ) and F n 2 (x, Q ) at Q = 4GeV , as well as the CCFR neutrino data at Q = 3 and 5GeV . We also make some reasonable and simple ...