The rst measurement of the quasi-free p+n!p+n+ reaction cross section has been made at the CELSIUS storage ring using a deuterium internal cluster jet target. The energy dependence of the cross section is extracted using a xed incident proton energy of T p = 1350 MeV and exploiting the Fermi momentum of the struck neutron. The data cover a range of centre-of-mass excess energies from 16 MeV to ...

We consider the complexity of combining bodies of evidence according to the rules of the Dempster{Shafer theory of evidence. We prove that, given as input a set of tables representing basic probability assignments m1; : : : ; mn over a frame of discernment , and a set A , the problem of computing the combined basic probability value (m1: : :mn)(A) is #P-complete. As a corollary, we obtain that ...

A bstract I study the behavior of gauge-invariant gluon bi-local operator with space- like separation at large longitudinal distances. Performing Fourier transform, also calculate pseudo and quasi PDF low Bjorken x compare it leading next-to-leading twist approximation. show that pseudo-PDF quasi-PDF are very different this regime higher corrections come in not as inverse powers P but B .

We analyze the chiral p-wave superconductor in the low temperature region. The superconductor has a εxpx + iεypy-wave gap in two dimensional space (2D). Near the second superconducting transition point, the system could be described by a quasi-1D chiral p-wave model in 2D. The axial anomaly occurs in such a model and causes an accumulation of the quasiparticle in an inhomogeneous magnetic field...

We introduce two kinds of quasi-inner functions. Since every rationally invariant subspace for a shift operator SK on a vector-valued Hardy space H(Ω, K) is generated by a quasi-inner function, we also provide relationships of quasi-inner functions by comparing rationally invariant subspaces generated by them. Furthermore, we discuss fundamental properties of quasi-inner functions, and quasi-in...

for all x ∈ X . Quasi-isometries occur naturally in the study of the geometry of discrete groups since the length spaces on which a given finitely generated group acts cocompactly and properly discontinuously by isometries are quasi-isometric to one another [Gro]. Quasi-isometries also play a crucial role in Mostow’s proof of his rigidity theorem: the theorem is proved by showing that equivaria...

We introduce the quasi-hyperbolicity constant of a metric space, rough isometry invariant that measures how space deviates from being Gromov hyperbolic. This number, for unbounded spaces, lies in closed interval $[1,2]$. The an hyperbolic is equal to one. For CAT$(0)$-space, it bounded above by $\sqrt{2}$. Banach at least two dimensional below $\sqrt{2}$, and non-trivial $L_p$-space exactly $\m...