Bulletin of the American Physical Society
2008 Annual Meeting of the Division of Nuclear Physics
Volume 53, Number 12
Thursday–Sunday, October 23–26, 2008; Oakland, California
Session FA: Fundamental Neutron Physics |
Hide Abstracts |
Chair: Geoff Greene, University of Tennessee and SNS Room: Simmons Ballroom 2-3 |
Saturday, October 25, 2008 8:30AM - 9:06AM |
FA.00001: An Overview of Experiments in Neutron Beta Decay Invited Speaker: Experiments in neutron and nuclear beta decay continue to probe certain aspects of the standard electroweak model. The neutron is simple enough that precise measurements can be interpreted with theoretical clarity. Over the last few years several new experiments have been conducted and proposed both to improve the precision of previous work and also to search for new observables. In this talk we will attempt an overview of the present state of this field of activity. [Preview Abstract] |
Saturday, October 25, 2008 9:06AM - 9:42AM |
FA.00002: The study of neutron quantum states in the Earth's gravitational field Invited Speaker: I will discuss the discovery and characterization of gravitational bound neutron states. In the previous experiments, the lowest neutron quantum states in the gravitational potential were distinguished and characterized by a measurement of their spatial extent. The future detection of resonant transitions between these neutron quantum states with the help of the GRANIT spectrometer (under construction) promises to give further and more precise information. Here, transitions between different quantum states induced by RF pulses shall be observed. These measurements are not only demonstrations of standard quantum mechanics. I will discuss applications of these measurements in the search for spin-dependent short-range interactions. [Preview Abstract] |
Saturday, October 25, 2008 9:42AM - 10:18AM |
FA.00003: Precision Neutron Scattering Length Measurements Using Neutron Interferometry Invited Speaker: The neutron interferometer, pioneered by Werner and Rauch in the 1970's, splits the neutron matter wave into two paths by Bragg diffraction in a perfect silicon crystal, then recombines them coherently to produce a interference signal measured by a neutron counter, thereby directly obtaining an interaction amplitude via the phase shift. It has been used to make famous demonstrations of quantum phenomena that are now found in many textbooks. It is also an ideal instrument for precision measurement of low-energy neutron scattering lengths that are important for developing and testing nuclear potential models and effective field theories, and probing neutron substructure. I will describe previous experiments and the current program at the NIST Neutron Interferometry and Optics Facility. [Preview Abstract] |
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700