Click here for a printable version of this page.
Nuclear Physics Seminars
Nuclear
Tuesday, September 25, 2001
3:30 PM
Physics Building, Room 204

B. Borosoy
[Host: Blaine Norum]
Technical University
"Chiral Dynamics of the etaprime meson"

ABSTRACT:
The lowestlying nonet of pseudoscalar mesons consists of the Goldstone boson octet of pions, kaons and the eta, which become massless in the chiral limit of zero quark masses, and the corresponding singlet state, the etaprime, which, on the other hand, remains a massive state in the chiral limit due to the axial U(1) anomaly.
In order to describe the interactions of the etaprime with the Goldstone boson octet at low energies, the conventional chiral effective Lagrangian is extended to include the etaprime. The results presented in this talk include (eta)(etaprime) mixing and the dominant decay mode of the etaprime into (eta bion pion). Furthermore, we conbine the chiral Lagrangian approach with a coupled channel analysis, in order to investigate etaprime electroproduction off the nucleons.
The investigation of the etaprime may offer new insights into the role of the axial U(1) anomaly in chiral dynamics. 



To add a speaker, send an email to
physspeakers@Virginia.EDU.
Please include the seminar type (e.g. Nuclear Physics Seminars), date, name of the speaker, title of talk, and an abstract (if available).
