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Dear colleagues,
<br>
<br>
I would like to invite you to the following seminar,
<br>
<br>
<br>
Prof. Jan Olav Eeg <br>
(University of Oslo, Norway)
<br>
<br>
"<span style=" color:#000000;">Neutron electric dipole moment from
flavor changing Higgs couplings</span>"
<br>
<br>
<span style=" color:#000000;">Wednesday</span>, 9th of November,
11:00h, F-201
<br>
<br>
We consider neutron electric dipole moment contributions induced by<br>
flavour changing Higgs boson couplings to quarks. Previously one
loop<br>
diagrams with such couplings were considered in order to constrain<br>
such couplings. In the present paper the analysis is extended to the
<br>
two loop level, where the large SM Yukawa coupling for Higgs to top<br>
as well as the large SM Higgs coupling to the W-boson compensates<br>
for the loop suppression factor.<br>
<br>
Unfortunately, some of the contributing diagrams have
logarithmically<br>
divergent subloops, and this theory is not renormalizable.<br>
The logarithmically divergent terms are parametrized in terms of a<br>
cut-off of order 1 to 3 TeV. Given the experimental bound of the<br>
neutron electric dipole moment, we obtain a bound on the flavor
changing <br>
Higgs coupling of same order of magnitude as the one reported by
other <br>
authors from $B$--$\bar{B}$-mixing.<br>
<br>
<br>
Best regards,
<br>
<br>
Ivica Smolić
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