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:
"Determining the antiproton-to-electron mass ratio by laser spectroscopy of antiprotonic helium atoms", Dr. Masaki Hori (MPQ)
Main Auditorium ()
An antiprotonic helium atom is a 3-body Coulomb system composed of a helium nucleus, antiproton, and electron that retains microsecond-scale lifetimes against antiproton annihilation in the helium nucleus. The ASACUSA collaboration at CERN carries out precise laser spectroscopy of this object to measure the characteristic frequencies of transitions of the antiproton within this atom. By comparing the results with three-body QED calculations, the antiproton-to-electron mass ratio was recently determined to a fractional precision of 800 parts per trillion. The results agreed with the known proton-to-electron value. In this experiment we used the technique of buffer gas cooling, i.e., to lower the temperature of our samples of antiprotonic helium atoms to T=1.5 - 1.7 Kelvin by simply allowing the antiprotonic atoms to collide with normal helium atoms at cryogenic temperatures.