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Hi, On Apr 25, 2013, at 2:44 PM, Andrei Gritsan wrote: > Hi Chip, Michael, > > On this first question from the CF that we did not have time to discuss today: > >> Questions to us from the Cosmic Frontier, to be discussed today: >> >> "HE1": • The message from the LHC seems to be that with data in hand, we consistently outperform >> expectations for extraction of Higgs properties. How much is there really for an ILC to contribute? >> What key assumptions are we making now that we could relax with ILC inputs? > > This is a rather broad question covering the broad ranges of Snowmass studies (and beyond just Higgs > boson study alone, as Chris points), so we will be answering this as the report takes it shape. At the same > time we could have some examples. First of all, the wording of LHC outperforming expectations is > questionable (perhaps people did not trust that LHC would do well, but it is a separate question) > and the ILC/e+e- and LHC programs are really complementary. > > Chris has covered some of this, but I wanted to bring the examples such as spin or CP violation as > the Higgs properties. LHC may indeed complete the measurements of spin well before any Higgs factory > may have a chance to contribute (we know a lot now already). But then the next step is to measure / limit > CP-violation from Higgs kinematics, and this will be a long way for LHC. It will do well, but only as well > as statistics allows. The Higgs factory would quickly outperform in statistics in the HZZ coupling, the > golden coupling on LHC and even more so on the Higgs factory. So, this is one example to contradict > the points hidden in the question asked. It is of course not enough to answer the question fully, but > the goal of the Snowmass report is to lay out all these physics cases. I thought future measurements of EDMs of e/p/n/d would be more sensitive to small CP violation in the Higgs sector then direct measurements of Higgs properties? I guess it's related to Michael's "pump-priming" question to IF... -y > > Andrei > > > Use REPLY-ALL to reply to list > > To unsubscribe from the SNOWMASS-EF list, click the following link: > https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=SNOWMASS-EF&A=1 > -------------------------- Prof. Yuri Gershtein [log in to unmask] http://physics.rutgers.edu/~gershtein (732)445-5500 x1794 W316 Serin Building Department of Physics and Astronomy 136 Frelinghuysen Rd Rutgers University Piscataway, NJ 08854 ######################################################################## Use REPLY-ALL to reply to list To unsubscribe from the SNOWMASS-EF list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=SNOWMASS-EF&A=1