Restricted Research - Award List, Note/Discussion Page
Fiscal Year: 2023
161 University of North Texas (142049)
Principal Investigator: Quintanilla,Sandra J
Total Amount of Contract, Award, or Gift (Annual before 2011): $ 100,000
Exceeds $250,000 (Is it flagged?): No
Start and End Dates: 9/1/22 - 8/31/25
Restricted Research: YES
Academic Discipline: Physics
Department, Center, School, or Institute: College of Science
Title of Contract, Award, or Gift: Low-energy atomic processes including ones involving a positron
Name of Granting or Contracting Agency/Entity:
National Science Foundation
CFDA Link: NSF
47.049
Program Title:
none
CFDA Linked: Mathematical and Physical Sciences
Note:
The proposed research in theoretical atomic physics is an investigation of few charged particles systems. Most of the atomic processes proposed to be considered involve a positron which is an antiparticle of an electron. The first project proposed is the comparison of positron, electron, and positronium scattering from helium as a function of the incident velocity. Positronium is a bound state of an electron with its antiparticle, the positron. The UCL positron experimental headed by Laricchia reported in Science that the similarity between electron scattering and positronium scattering The second project is on electron- (positron-) scattering from positronium, and the photodetachment of the positronium negative ion. The ion comprises of two electrons and one positron. Michishio et al. reported in 2011 in Physical Review Letters experimental observation of the positronium negative ion. It is planned for graduate students to work on the proposed research.
Discussion: No discussion notes