title: Ammonia spectrum as a test for two different pressure shift theories.
abstract: Pressure shift calculations, based on the semiclassical ATC theory and on the quantum Fourier transform (QFT) theory, are compared wtih experimental results for seventy-two inversion, rotation, and vibration transitions of (14)NH(3) and (15)NH(3). ATC, even if not exact, allows a far better agreement than QFT. A possible reason for this is briefly discussed.
authors.forename: G
authors.initials: G
authors.lastname: Buffa
authors.forename: O
authors.initials: O
authors.lastname: Tarrini