| Modified | DDT |>| SUN.MAR,990328,20:57-4 | | CoSy/Home ; CoSy/Current | © Coherent Systems Inc . |
Physics & Astronomy Section
============================: FRI.MAR,990319 :============================
18| NY Acad Sci NYAS:Quark-GluonPlasma9903 . MichaelTannenbaum
RelativisticHeavyIonCollidor
|18:9| NYAS : 40k members , 1%3 NYC area .
MichaelTannenbaum : Brookhaven - PhD Columbia - size of muon . CERN Harvard
Rockefeller .
Proposed new state of matter : Quantup Chromodynamics : Strong interactions
- 10fm cube
( P x D 10^3 - 4%3 RA % r ) + K x r | strong % r | string like K x r |
[ /\ Wish I had gotten this formula and comments precisely . core . /\ ]
Coulumb like potential
Feynman : colide - like understanding Swiss watches by smashing them into
each other .
grape pulp - gluons , quarks - seeds , nucleus grape bunch .
smash into momentary 1 big grape - Q-G Plasma .
Theory of Big Bang - | Now 10*17 seconds later |
Gold has nice big nucleus . isotopically pure 197 vs Lead 207 .
RelativisticHeavyIon collision in C.M System - Lorenz contracted .
@ Gamma : 100 | ( relativistic length ratio )
Peripheral collision Impact Parameter b . > 2 R , no colision
Baryons - neutrons , protons | 4 theories of elastisity
Longitudinal & Transverse Momentum preserved .
Rapidity - speed metric linear under Lorenz trans .
mT ( ( +/ m p * 2 ) * .5
Entropy : S : number of particles created . multiplicity .
Phase transition . revealed by characteristic temp vs entropy curve .
Photon / Lepton pair thermal emission . strange particles enhanced .
Debye Screening - charmed particles escape .
Electric forces @ > 2 x R miss .
Relativistic nuclei transparent to each other because small excitations
take place over long distances . (?)
each collision creates thousands of particles .
Building RelativisticHeavyIonCollidor - 2 km ring . 20 yr ago Brookhaven LI .
2.4 mi path .
Tandem VanDeGraf`s to start - 6 matched circular arcs w 6 staight sections
50 - 500 GeV | super conducting Magnets .
Propoesd `84 . Broke ground `91 . `98 finished last magnet .
`99 physics starts . `00 plan conference w Stony Brook
Collision energy - 2 mosquitoes .
1600 mi superconducting cable .
Phoenix experiment 15M tall .
Star Experiment .
www.rhic.bnl.gov
|19:10| ?s : Fusion ? need chromo- , not electro- magnetic field .
Duration ? C x 10fM | SpaceTime cube .
not Gaussian or Poisson , neg binomial dists . rel quantum xr
;
| NoteComputer |
|