C. J. Horowitz, Indiana University
The Lead Radius Experiment and Neutron Rich Matter in Astrophysics and in the Laboratory, Trento, Italy, August 3-7, 2009
The PREX experiment uses parity violating electron scattering to accurately determine the neutron radius in 208Pb. This has remarkably broad applications to astrophysics, nuclear structure, atomic parity non-conservation, and tests of the Standard model. This workshop discusses implications for PREX in nuclear structure and astrophysics and final plans for the PREX experiment which is scheduled to run early in 2010.
The Lead Radius Experiment (PREX) and Neutron Rich Matter in the Heavens and on Earth, Jefferson Laboratory, August 17-19, 2008
We invite everyone interested in neutron rich matter, nuclear structure, or electron scattering and fundamental symmetries to Virginia this summer. PREX is a fascinating experiment that uses parity violation to accurately determine the neutron radius in 208Pb. This has remarkably broad applications to astrophysics, nuclear structure, atomic parity non-conservation, and tests of the Standard model.
Three nucleon interactions (TNI) are crucial to the detailed understanding of microscopic nuclear physics. Effective field theories have divergences requiring three nucleon counter terms which can not be neglected without introducing unacceptable model dependencies. In this conference, we summarize the present knowledge of the role of TNI in describing observables from few to many nucleon scattering and bound state systems. We discuss how the TNI depends on distance, spin, and isospin. We go on to highlight the dramatic progress being made incorporating TNI in accurate calculations of few to many nucleon systems. Finally, we discuss some of the important projects remaining to much better characterize and utilize TNI.
We invite everyone who is interested in dense matter to Montreal this summer. This conference aims to foster collaboration between nuclear physicists, both theorists and experimentalists, and astrophysicists. We will start with introductory talks. We encourage nuclear physicists who are interested in astrophysics, astrophysicists who want to know more about nuclear physics, and junior scientists to attend. This conference follows the 2004 Philadelphia workshop on the nuclear equation of state.
QCD is invariant under the interchange of up and down quarks. This charge symmetry is broken only by electromagnetic effects and the up and down quark masses. These masses are poorly known fundamental parameters, and learning the phenomenalogical influence of their difference is an important way to improve understanding of the standard model. The impetus for this workshop is provided by two recent charge symmetry breaking (CSB) experiments involving the production of neutral pions. The Cooler CSB experiment at Indiana deteced the CSB reaction d+d to alpha+pi0 while a CSB forward-backward asymmetry was observed at TRIUMF in the reaction n+p to d+pi0. Furthermore there are exciting possibilities for new experiments at COSY-Juelich and elsewhere and new opportunities provided by theoretical advances in effective field theory and the understanding of few body systems.
Parity violation provides a uniquely clean probe of complex strong interaction dynamics and allows important tests of the Standard Model. There is a new opportunity to use parity violating elastic electron scattering to accurately measure neutron densities. This could have many implications for atomic parity experiments, nuclear structure, and nuclear astrophysics. New results on proton-proton parity violation are being disseminated. The first week of this workshop will focus on parity violating electron scattering, atomic PNC, and the nuclear structure related to neutron densities. The second week will focus on parity violation in nuclei and in nucleon scattering.