Abstracts are invited for submission as input to the session "New experimental ideas". Abstract topics are open but should keep in mind the mandate of the Physics Beyond Colliders study group. Individual physicists, both experimentalists and theorists, as well as existing consortia are welcome to submit abstracts. All pertinent abstracts will be made available on the workshop web site. Abstracts will be reviewed by the PBC coordinators and a selected list of speakers will be contacted to define the presentation programme. The expected date for speaker selection is the beginning of October.