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ensabah6
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http://www.math.columbia.edu/~woit/wordpress/
"Comment on Technicolor/Extended Technicolor Models
October 26th, 2007"
very brief excerpt "I would like to respond to Eric’s recent comment on Oct. 23 in which he said that “technicolor models were..eventually rejected due to some serious shortcomings. Namely, in order to generate fermion mass hierarchies for the SM fermions, one ends up with serious problems with FCNC’s.” and that these theories “led to a plethora of technimesons, for which there is absolutely no evidence.”.
Josh1 and other string theorists reading this, If LHC provides experimental evidence for technicolor, and no experimental evidence for higgs/SUSY, can string theory account for such a result?
this is my take on string theory:
If LHC provides experimental evidence for technicolor, and no experimental evidence for higgs/SUSY, such a null result would be very difficult to account for in string theory since 1 original argument of SUSY is a solution to the hierarchy problem created by the higgs field, with predictions of lightest mass SUSY particles around the EW-scale (200GEV). I agree with the usual disclaimer that it's possible SUSY is a fundamental symmetry of nature, broken above the EW scale, and beyond LHC collision energies, and I suppose there could be higgless models of string theories, but I would suggest the possibility that perhaps fundamental physics is not described by string theory in this experimental scenario.
"Comment on Technicolor/Extended Technicolor Models
October 26th, 2007"
very brief excerpt "I would like to respond to Eric’s recent comment on Oct. 23 in which he said that “technicolor models were..eventually rejected due to some serious shortcomings. Namely, in order to generate fermion mass hierarchies for the SM fermions, one ends up with serious problems with FCNC’s.” and that these theories “led to a plethora of technimesons, for which there is absolutely no evidence.”.
Josh1 and other string theorists reading this, If LHC provides experimental evidence for technicolor, and no experimental evidence for higgs/SUSY, can string theory account for such a result?
this is my take on string theory:
If LHC provides experimental evidence for technicolor, and no experimental evidence for higgs/SUSY, such a null result would be very difficult to account for in string theory since 1 original argument of SUSY is a solution to the hierarchy problem created by the higgs field, with predictions of lightest mass SUSY particles around the EW-scale (200GEV). I agree with the usual disclaimer that it's possible SUSY is a fundamental symmetry of nature, broken above the EW scale, and beyond LHC collision energies, and I suppose there could be higgless models of string theories, but I would suggest the possibility that perhaps fundamental physics is not described by string theory in this experimental scenario.
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