Particle theory

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ELECTROWEAK RADIATIVE-CORRECTIONS AND THE VALUE OF SIN-2-THETA-W

PHYSICS LETTERS B 105:6 (1981) 486-488

Authors:

CHL SMITH, JF WHEATER
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LOW-ENERGY PREDICTIONS FROM GRAND UNIFIED THEORIES

NUCLEAR PHYSICS B 177:2 (1981) 263-281

Authors:

CHL SMITH, GG ROSS, JF WHEATER
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NEW APPROACH TO INTERACTIONS IN THE MIT BAG

PHYSICAL REVIEW D 23:9 (1981) 2098-2101

Authors:

FE CLOSE, S MONAGHAN
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THE VALUE OF SIN-2-THETA-W IN ATOMIC PHYSICS EXPERIMENTS

PHYSICS LETTERS B 105:6 (1981) 483-485
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A lower limit to the magnetic field in Cassiopeia-A

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 191:4 (1980) 855-861

Authors:

Ramanath Cowsik, Subir Sarkar

Abstract:

The magnetic field strength in the radio-emitting shell of the supernova remnant Cassiopeia-A should be greater than $8 \times 10^{-5} G$ if the bremsstrahlung by the electrons responsible for the non-thermal radio emission is not to exceed the upper limits to the gamma-ray emissivity set by the recent observations. This field strength is shown to be too large to be generated by a mere compression of the interstellar field by the supernova shock but must arise due to magnetohydrodynamic instabilities in the expanding shell. Gamma-ray generation through inverse-Compton scattering of photons in the surrounding H II region is also briefly discussed.
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