Difference between revisions of "TF 01092012 Colloq"

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=Intro=
 
=Intro=
  
==Fundamental Physics==
+
#ISU physics measurements
 +
#Graduate Student Projects
 +
#Future efforts
  
==Detector Work==
+
=ISU Physics Measurements=
  
 +
==Kinematics==
 +
===Q^2===
 +
===W===
 +
===The Delta Resonance===
 +
 +
==PV asymmetry==
 +
 +
===Z-bosons and the Weak Force===
 +
===Nuclear reaction via the Weak Force===
 +
 +
==Double Spin Asymmetry==
 +
===Quark Distributions===
 +
===Polarized QUark distributions===
 +
===Clebsch Gordan recoupling===
 +
 +
 +
=Student Projects=
 +
==Detector Construction==
 +
==
  
  
 
[[TF_ResearchInterests]]
 
[[TF_ResearchInterests]]

Revision as of 16:29, 4 January 2012

Title: Inelastic Physics Asymmetries


Abstract

ISU's intermediate energy nuclear physics group is presently involved in several fundamental physics measurements. This talk will describe two measurements that use inelastic polarized electron scattering. The first measurement investigates the response of the nucleon's first excited state, the Delta resonance, to polarized electro-magnetic probes. The excitation of the nucleon to its first excited state is commonly described in terms of a quark spin flip induced by an electromagnetic probe. Recently, however, there has been increasing interest in a second method that uses a different neutral particle called the Z-boson to induce the quark spin flip via the Weak force. A fundamental constant known as d-delta can be measured using this interaction. A second program to measure quark polarization distributions by looking at the response of a polarized nucleon to a polarized electron is also underway. This program will test the predictions of a fundamental theory known as quantum-chromodynamics. The physics implications of these experiments and the roles of graduate students in the physics program will be described.

Intro

  1. ISU physics measurements
  2. Graduate Student Projects
  3. Future efforts

ISU Physics Measurements

Kinematics

Q^2

W

The Delta Resonance

PV asymmetry

Z-bosons and the Weak Force

Nuclear reaction via the Weak Force

Double Spin Asymmetry

Quark Distributions

Polarized QUark distributions

Clebsch Gordan recoupling

Student Projects

Detector Construction

==


TF_ResearchInterests