The Standard Model of particle physics, together with the Big Bang model of the early universe, constitute a framework which encompasses our current understanding of fundamental laws and beginning of our universe. Despite recent speculative trends, quantum field theory remains the theoretical tool of choice for investigating new physics either at high energy colliders, or in the early universe. In this dissertation, several field theoretic phenomena relevant to cosmology or particle physics are explored. A common theme in these explorations is the structure of the vacuum state in quantum field theory. First, we discuss first-order phase transitions in the early universe, in which the effective vacuum state of the universe shifts discontinuously as the temperature drops below some critical point.
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Purdue University: Department of Physics and Astronomy: Graduate Student Resources
In particle physics , V was a generic name for heavy, unstable subatomic particles that decay into a pair of particles, thereby producing a characteristic letter V in a bubble chamber or other particle detector. Such particles were first detected in cosmic ray interactions in the atmosphere in the late s  and were first produced using the Cosmotron particle accelerator at Brookhaven National Laboratory in the s. V 0 is still used on occasion to refer generally to neutral particles that may confuse the B-tagging algorithms in a modern particle detector, as is used in Section 7 of this ATLAS conference note. This particle physics —related article is a stub. You can help Wikipedia by expanding it. From Wikipedia, the free encyclopedia.
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As a physicist I write a lot of code, blog posts, and a lot talks. This page summaries my outreach activities, some useful tools I've developed, the big talks I've given, and a few other bits and pieces relevant to my job. This is a collection of YouTube videos as made as an outreach project in December Each day of Advent gives a different interesting fact about particle physics.