In order to enable an iCal export link, your account needs to have an API key created. This key enables other applications to access data from within Indico even when you are neither using nor logged into the Indico system yourself with the link provided. Once created, you can manage your key at any time by going to 'My Profile' and looking under the tab entitled 'HTTP API'. Further information about HTTP API keys can be found in the Indico documentation.
Additionally to having an API key associated with your account, exporting private event information requires the usage of a persistent signature. This enables API URLs which do not expire after a few minutes so while the setting is active, anyone in possession of the link provided can access the information. Due to this, it is extremely important that you keep these links private and for your use only. If you think someone else may have acquired access to a link using this key in the future, you must immediately create a new key pair on the 'My Profile' page under the 'HTTP API' and update the iCalendar links afterwards.
Permanent link for public information only:
Permanent link for all public and protected information:
(University of Califorina San Diego)
TH Theory Conference Room (CERN)
TH Theory Conference Room
Adding higher derivative terms to the Standard Model gives a renormalizable theory whithout quadratic divergences, hence providing a cure to the hierarchy problem -- the higgs mass is stable against diverging power corrections. Dangerous Flavor Changing Neutral Currents are automatically suppressed and the tree level correction to the rho (or T) parameter is phenomenologically acceptable. After reviewing these basic facts we will review the observation due to Lee and Wick that theories with higher derivatives yield a unitary S-matrix if the ghosts are unstable. Unstable ghosts come a a price: these theories display peculiar acausal behavior at very short intervals. We will explain this by considering a simplified, soluble model.