115543079
Bubble chamber picture measurement
107817247
THE HPD MARK 2 FLYING-SPOT DIGITIZER AT CERN.
117116734
An assessment of the first bubble chamber experiment processed with the HPD at CERN
24800285
Identifying the inflaton with primordial gravitational waves.
We explore the ability of experimental physics to uncover the underlying structure of the gravitational Lagrangian describing inflation. While the observable degeneracy of the inflationary parameter space is large, future measurements of observables beyond the adiabatic and tensor two-point functions, such as non-gaussianity or isocurvature modes, might reduce this degeneracy. We show that, even in the absence of such observables, the range of possible inflaton potentials can be reduced with a precision measurement of the tensor spectral index, as might be possible with a direct detection of primordial gravitational waves.