1,668 research outputs found
Sea Contributions to Spin 1/2 Baryon Structure, Magnetic Moments, and Spin Distribution
We treat the baryon as a composite system made out of a \lq\lq core" of three
quarks (as in the standard quark model) surrounded by a \lq\lq sea" (of gluons
and -pairs) which is specified by its total quantum numbers like
flavor, spin and color. Specifically, we assume the sea to be a flavor octet
with spin 0 or 1 but no color. The general wavefunction for spin 1/2 baryons
with such a sea component is given. Application to the magnetic moments is
considered. Numerical analysis shows that a scalar (spin 0) sea with an
admixture of a vector (spin 1) sea can provide very good fits to the magnetic
moment data {\em using experimental errors}. Our best fit automatically gives
for neutron beta decay in agreement with data. This fit also gives
reasonable values for the spin distributions of the proton and neutron.Comment: 24 pages, REVTEX. References modifie
A priori mixed hadrons, hyperon non-leptonic decays, and the |\Delta I|=1/2 rule
The |\Delta I|=1/2 rule in non-leptonic decays of hyperons can be naturally
understood by postulating a priori mixed physical hadrons, along with the
isospin invariance of the responsible transition operator. It is shown that
this operator can be identified with the strong interaction Yukawa hamiltonian.Comment: Workshops on Particles and Fields and Phenomenology of Fundamental
Interactions. J. C. D'Olivo, A. Fernandez, and M. A. Perez, Ed
CONFRONTING THE WILDFIRE CRISIS: UNDERSTANDING EQUITY AND DECISION-MAKING IN WILDFIRE MANAGEMENT STRATEGIES
This study investigates how fuel managers incorporate equity and social vulnerability considerations into wildfire fuel reduction treatments on National Forest land and explores the resulting impact on the implementation of wildfire risk reduction policies. Through interviews, managers revealed differing perspectives on prioritizing social vulnerability characteristics and challenges such as insufficient information and resources to inform equitable fuel treatment decisions. These findings illuminate the complexities of integrating considerations of social vulnerability into decision-making processes for wildfire management at the wildland-urban interface, suggesting potential divergence from nationally supported policies aimed at equitably implementing wildfire risk reduction measures. The study findings underscore the importance of addressing challenges associated with access to information and building capacity to enhance the equity and effectiveness of manager’s fuel reduction decision-making
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