The Big Bang Sam Tipton Justin Matteri Jordan Stone Physics 4D Y. Ataiiyan May 4, 2006
What is the Big Bang All matter of Universe emerged from single dense hot state Combination of Cosmological Principals and general Relativity 13.7 Billion years ago Giant ball of matter (Nucleosynthesis), Alpher-Bethe- Gamow(1946) Hubble’s Law (1929) Red Shift
Supportive Evidence Abundance of Lighter Elements: Li, H, He, Be Cosmic Radiation -Cosmic Microwave Background -Proposed 1948 Gamow-Alpher -Proved 1965 Bell Lab Universe Expanding (Red Shift)
Timing
Timing
RHIC Facility Relativistic Heavy Ion Collider 2-3.7km Rings BRAHMS, PHOBOS, STAR, PHENIX Gas filled detector Gold and other heavy nuclei to C Tests Quantum Chromo dynamics (QCD) Temps up into the Trillions of degrees
Gas Detector at STAR
RHIC Discoveries Mini Bangs at 20,000 GeV atm and T=5*10 15 C 15 Times energy needed to free quark Resulting pattern shows fluid like versus gas like. Performs with almost no viscosity.
In the Future Tracking heavier charm and Beauty quarks Next step at CERN’s LHC (Large Hadron Collider) in 2008 Uses lead nuclei at 10 6 GeV Will produce temperatures of over 10 Trillion degrees Uses ALICE detector, with technology from PHENIX and STAR detectors
References Foundations of Big Bang Cosmology:WMAP Cosmology 101: Riodan,Michael and Zajc, William a. “The First Few Microseconds,” Scientific American: May 2006 Wikipedia:Big Bang Theory: Thornton, Stephan T. and Rex, Andrew. Modern Physics for scientists and engineers, Thomson 2006 RHIC Homepage: RHIC animations: “What have we learned from the relativistic heavy ion collider? Thomas Ludlam and Larry McLerran in Physics Today, Vol. 56, No 10, Pages 48-54: October 2003