Wolfgang Korsch

Intermediate Energy Nuclear Physics using Leptonic Probes
Office: 181b Chem-Phys. Bldg.
Phone: 606-257-4083
e-mail: korsch@pa.uky.edu

Research interests

My research interests are focussed on understanding the structure of nucleons. Nowadays, we believe that nucleons are made of three fundamental Dirac particles, so called quarks. These quarks carry 1/3 or 2/3 of the elementary charge of an electron or positron and have a spin 1/2. The current distribution of these quarks inside a nucleon is very complex and complicated. By means of electron scattering experiments over a large range of energies (from a few hundred MeV to about 30 GeV) one can study the electric and magnetic current distributions. Using polarized electrons (the spins of the electrons are alligned parallel or antiparallel to their momentum) and polarized targets, such as protons, deuterons, or 3He, one has a tool to investigate new fundamental properties of the nucleons, such as questions like: Where does the nucleon gets its spin? I am collaborating in the Polarized 3He Collaboration in Hall A and the G0<\sup> Collaboration in Hall C at Jefferson Lab. Recently I joined a collaboration to improve the limits on the Electric-Dipole-Moment of the Neutron.

Education

7/04 Assoc. Prof. in Physics at UKy
7/99 Asst. Prof. in Physics at UKy
10/96 Res. Asst. Prof. in Physics at UKy
12/93 Sen. Res. Fellow at Caltech
2/91 Postdoc. Fellow at MIT
4/90 Ph.D. in Nuclear Physics at Univ. of Marburg and MPI for Nucl. Physics (Heidelberg), Germany
4/87 Diploma in Physics at Univ. of Marburg and MPI for Nucl. Physics (Heidelberg), Germany

Postdoctoral Fellows

Graduate Students

  • W. Xu et al, The Jefferson Lab Polarized 3He Collaboration, "PWIA Extraction of the Neutron Magnetic Form Factor from Quasi-elastic He-3(pol.)(e(pol.),e') at Q2 = 0.3-(GeV/c)2 to 0.6-(GeV/c)2'", Phys. Rev. C 67, 012201 (2003).
  • M. Amarian et al., The Jefferson Lab Polarized 3He Collaboration, "The Q2 Evolution of the Generalized Gerasimov-Drell-Hearn Integral for the Neutron using a 3He Target''; Phys. Rev. Lett. 89, 242301 (2002).
  • W. Korsch, "Spin Physics with Polarized 3He'', published in: Charlottesville 2002, Testing QCD through Spin Observables in Nuclear Targets, World Scientific, 249-255 (2002).
  • W. Korsch,``Studies of the Neutron Spin Structure at Jefferson Lab''; Europ. Phys. J. A 1754, Electron-Nucleus Scattering VII, Elba International Physics Center, Italy, 2002.
  • X. Zheng et al., The Jefferson Lab Polarized 3He Collaboration, ``Precision Measurement of the Neutron Spin Asymmetry A1n in the Large xBj Region''; submitted to Phys. Rev. Lett.
  • F. Xiong et al., "Precision Measurment of the Spin Dependent Asymmetry in Threshold Region of Polarized 3He (Polarized-e, e-prime), Phys.Rev.Lett.87 242501 (2001)
  • R. Hasty, et al., SAMPLE Collaboration, ``Strange Magnetism and the Anapole Structure of the Proton''; Science 290 2117 (2000)
  • W. Xu et al., ``The Transverse Asymmetry AT' From The Quasielestic 3He (e,e') Process and the Neutron Magnetic Form-Factor'', Phys. Rev. Lett. 85 2900, 2000
  • A. Airapetian, et al., The HERMES Collaboration, `Measurement of the Spin Asymmetry in the Photoproduction of Pairs of High p(t) Hadrons at HERMES'', Phys. Rev. Lett. 84 2584, 2000
  • A. Airapetian, et al., The HERMES Collaboration, ``Observation of a Single Spin Azimuthal Asymmetry in Semiinclusive Pion Electro Production'', Phys. Rev. Lett. 84 4047, 2000.
  • D.T. Spayde et al., SAMPLE Collaboration, ``Parity Violation in Elastic Electron Proton Scattering and the Proton's Strange Magnetic Form-Factor.'', e-Print Archive: nucl-ex/9909010, Phys.Rev.Lett. 84 1106 (2000).

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