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Project NA60:Part Deux

Project NA60:Part Deux. HBT Interferometery. Advisors: ->Atila Neves: Lisbon, Portugal ->Sanja Damjanovic: University of Heidelberg ->Hans J. Specht: University of Heidelberg ->Hiroaki Ohnishi: Riken, Japan. Physics Motivation:Review. Quark-Gluon Plasma (QGP)

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Project NA60:Part Deux

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  1. Project NA60:Part Deux HBT Interferometery Advisors: ->Atila Neves: Lisbon, Portugal ->Sanja Damjanovic: University of Heidelberg ->Hans J. Specht: University of Heidelberg ->Hiroaki Ohnishi: Riken, Japan David J Hover

  2. Physics Motivation:Review • Quark-Gluon Plasma (QGP) • QGP describes the early, Post-Big-Bang universe. • Want to map out point (phase transition) where Deconfined Patronic Matter becomes Confined Hadronic Matter • Freeze out temperature? Fireball radius? • Significance evidence shown in past SPS and offsite experiments but need to nail down facts. What is the Threshold??? David J Hover

  3. Bose-Einstein Correlations (HBT) • Glorified double slit experiment using intensity instead of amplitude. • Argues two similarly charged bosons are correlated in the same event. • Mixed events = not correlated • Correlate a variety of variables: Qo,Ql,Qs,Qinv and Qt. (240 plots!!!) • Separate by different charge combinations and targets David J Hover

  4. Is there a Correlation? BACKGROUND More pairs the better: decreases error but with increase in time. SOURCE Or Correlated C=S/B: PM not Correlated? C=S/B: MM is Correlated? David J Hover

  5. We Don’t Know Yet • Coulomb Corrections: • Trajectory/momentum-difference is also perturbed by pesky electromagnetic forces. We must remove them. • PM dataset has same magnitude of perturbance but without correlation. Extract the facts! • Momentum Smearing: • How does limited momentum resolution, especially at small differences, affect correlation? • Using event generation and reconstruction in MC to test. David J Hover

  6. “Fun” Slide “The universe works on a math equationthat never even ever really ends in the endInfinity spirals out creation. We're on the tip of its tongue, and it is saying: We aint sure where you stand. You aint machines and you aint land” Contrary to libelous rumors, I broke my arm saving 30 starving orphans from a burning building. Who wants to sign it????? They wear cats as hats in Switzerland. Presentation Inspired By: David J Hover

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