Dear all,
Today we have a theory seminar at 2pm in room H331. The speaker is
Giulia Ricciardi from Naples. See below for details.
Regards,
Damien George and Mert Aybat.
----
Date/place: Tuesday 31st May, 2pm, H331
Speaker: Giulia Ricciardi (Naples)
Title: eta - eta prime Mixing - From electromagnetic transitions
to weak decays of charm and beauty hadrons
It has been realized for a long time that knowing the eta and
eta-prime wave functions in terms of quark and gluon components probes
our understanding of non-perturbative QCD dynamics. Great effort has been
given to this challenge -- yet no clear picture has emerged even with the
most recent KLOE data. We point out which measurements would be most
helpful in arriving at a more definite conclusion. A better knowledge of
these wave functions will significantly help to disentangle the weight of
different decay subprocesses in semi-leptonic decays of D+, Ds^+ and B+
mesons. The resulting insights will be instrumental in treating even
non-leptonic B transitions involving η and η-prime and their CP
asymmetries; thus they can sharpen the case for or against New Physics
intervening there.
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