It is sad to think that the day we planned to talk about naturalness (in the SM…), we learned that Ken Wilson had died. Ken Wilson was the first to point at the naturalness issue, an idea advertised later on by Susskind and 't Hooft.

Some papers

• so called Veltman condition is given here M. Veltman, Acta Phys. Polon. B12 (1981) 437;

Follow ups and very similar ideas

• http://cds.cern.ch/record/370030/files/9811233.pdf ( eq. 2. 11 gives the Veltman condition)

• http://link.springer.com/article/10.1007%2FBF01482591

• http://arxiv.org/pdf/1205.6497.pdf Strumia et al;

• Meissner and Nicolai (conformal solution [CS], from an idea of Bardeen following the Coleman-Weinberg scenario in a way) arXiv:http://arxiv.org/pdf/hep-th/0612165.pdf

• http://arxiv.org/pdf/1301.4224.pdf [CS] Englert, Spannowsky,…

• [CS] Lykken and Friends, http://indico.cern.ch/getFile.py/access?contribId=8&sessionId=1&resId=0&materialId=slides&confId=217732 compare with thisLOL http://www.slac.stanford.edu/econf/C040802/lec_notes/Lykken/Lykken_web.pdf

• Y. Hamada, H. Kawai, K.Y. Oda, [arXiv: http://arxiv.org/pdf/1210.2538.pdf

• http://arxiv.org/pdf/hep-ph/0003170.pdf Murayama, Kolda, ←—***

• Jegerlehner papers ($\lambda$ assumed positive all way through, issue of tadpoles in masses?)
  • * http://arxiv.org/abs/arXiv:1305.6652
  • * http://arxiv.org/abs/arXiv:1304.7813