10,744 research outputs found
Fermion mass and mixing patterns from a rotating mass matrix
It is shown that all existing data on mixing between up and down fermion
states (i.e. CKM matrix and neutrino oscillations) and on the hierarchical
quark and lepton mass ratios between generations are consistent with the two
phenomena being both consequences of a mass matrix rotating in generation space
with changing energy scale. As a result, the rotation of the mass matrix can be
traced over some 14 orders of magnitude in energy from the mass scale of the
-quark at 175 GeV to below that of the atmospheric neutrino at 0.05 eV. This
is a summary of recent work done in collaboration with Chan Hong-Mo and Jose
Bordes.Comment: 12 pages latex, 6 figures, talk given at the International Symposium
on Frontiers of Science - In Celebration of the 80th Birthday of C N Yang,
June 2002, Beijin
Monopoles in Superloop Space
In this paper, we will analyse a four dimensional gauge theory with
supersymmetry in superloop space formalism. We will thus
obtain an expression for the connection in the infinite-dimensional superloop
space. We will then use this connection to obtain an expression for the
curvature of the infinite-dimensional superloop space. We will also show that
this curvature is proportional to the Bianchi identity in spacetime. Thus, in
absence of a monopole this curvature will vanish. However, it will not vanish
if the superloop intersects the world-line of a monopole because the Bianchi
will not hold at that point.Comment: 9 pages, 0 figures, accepted for publication in EP
Shifts in Redox Formal Potentials Accompanying the Incorporation of Cationic Complexes in Perfluoro Polycarboxylate and Polysulfonate Coatings on Graphite Electrodes
The formal potentials of several redox couples incorporated in coatings of a perfluoropolycarboxylate on graphite electrodes were measured and compared with the formal potentials of the same couples in homogeneous solution. The differences observed agreed with those calculated from the Nernst equation with the independently measured incorporationcoefficients for both halves of the redox couples. The dependences of the shifts in formal potentials on the nature of theincorporating complex ion, the ionic strength, and the temperature were determined and indicated that the incorporationequilibrium is governed by electrostatic and hydrophobic interactions that act in opposite directions. The incorporation ofmost cations examined was driven by large increases in entropy which overcame the usually unfavorable enthalpy changes
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