HIP NEWS October 14th 2013
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The workplace wellbeing survey 1.10. – 15.10.2013
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The workplace wellbeing survey for universities is part of a cooperation agreement with Varma Mutual Pension Insurance Company that includes all Finnish universities.
The workplace wellbeing survey will be accessible Tuesday to Tuesday, 1-15 October 2013.
The survey can be taken at
https://my.surveypal.com/yliopistojen_tyohyvinvointikysely_2013_-_Helsingin_yliopisto
DEPARTMENT OF PHYSICS / HIP JOINT COLLOQUIA / SEMINARS
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Tuesday 15 October 2013 at 10.15 in A315
Holger Bech Nielsen (Niels Bohr Institute)
What is so special about the Standard Model? Small representations.
Now it seems that the Standard Model gets more and more supported without yet convincing signs of new physics, so one may with increased strength ask: Why is just the a priori not so obvious Standard Model being selected by Nature? Don Bennett and I started by asking for a quantity depending on the gauge gruop which would be maximal on the Standard Model Group. We found a quantity which is essentially the ratio of the quadratic Casimir for the adjoint representation relative to the quadratic Casimir for the “smallest” faithful representation. Essentially the same maximization principle seems also to deliver the space-time dimension and the representation for the Higgs field. Taking into account the requirements of no anomalies, it is also very close at least to tell what Weyl field representations one shall find. So approximately the whole Standard Model except the number of families come out from such a really “small representation” principle!
Fall 2013 PhD school, “Supersymmetry or not, what is the evidence?”
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A particle/astro PhD school, Copenhagen
on supersymmetry, October 28-November 1st
https://indico.nbi.ku.dk/conferenceDisplay.py?confId=590
VISITORS
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A. Golovnev 24.10. – 6.11. (KE)
L. Laperashvili 1.10. – 22.10. (AT)
H.B. Nielsen 14.10. – 18.10. (AT)
S. Niyogi 15.9.-15.12 (KH)