arXiv subjects

Richard Watkins

Publications and source records attributed to Richard Watkins.

38 records · Page 3Linked to original sources

arXiv1993

Measuring Bulk Flows in Large Scale Surveys

We follow a formalism presented by Kaiser to calculate the variance of bulk flows in large scale surveys. We apply the formalism to a mock survey of Abell clusters á la Lauer \& Postman and find the variance in the expected bulk velocities in a universe with CDM, MDM and IRAS--QDOT power spectra. We calculate the velocity variance as a function of the 1--D velocity dispersion of the clusters and the size of the survey.

astro-ph↗

arXiv1992

Bound States Can Stabilize Electroweak Strings

We show that the electroweak $Z-$string can be stabilized by the presence of bound states of a complex scalar field. We argue that fermions coupled to the scalar field of the string can also make the string stable and discuss the physical case where the string is coupled to quarks and leptons. This stabilization mechanism is expected to work for other embedded defects and also for unstable solutions such as the sphaleron.

hep-ph↗