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Particle Physics Through Cosmology

This exploration into the universe combines particle physics and cosmology to unveil the origins and evolution of our cosmos. It delves into significant events such as the formation of quarks and leptons just moments after the Big Bang, and how these fundamental particles evolved into matter. The study also highlights the role of dark matter and dark energy in the universe's expansion and possible fate. By examining these elements, we gain insights into the complex interactions that have shaped the universe over billions of years.

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Particle Physics Through Cosmology

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  1. Particle Physics Through Cosmology Katrina Brown, Todd Brown, Ted Zaleskiewicz University of Pittsburgh at Greensburg Bob Reiland Shadyside Academy Cherie Harper Greensburg-Salem High School

  2. cpepweb.org The History and Fate of the Universe

  3. Universe Adventure • Lawrence Berkeley National Laboratory Physics Division • www.universeadventure.org

  4. Quark-gluon plasma • 10-12s after Big Bang, a soup of quarks, gluons, and leptons. • Matter-Antimatter pair production and annihilation.

  5. Quarks Come Together: 10-4 Seconds After the Big Bang • Eventually cools enough for composite particles to form from quarks.

  6. Continuing Expansion… • Atomic nuclei form 102 seconds after the Big Bang (electromagnetic vs strong interactions). • Atoms form 4x105yrs after the Big Bang.

  7. Dark Matter • Neutral atoms formed - the photons, no longer scattered by free electrons, decoupled. • These photons have been redshifted and are the 3K CMB radiation now observed. • Dark matter seeding

  8. History and Fate of the Universe • An expanding universe • Speed up, slow down or reverse? Depends on the amount of matter and energy. • Accelerating! • Dark energy

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