Journal
PHYSICAL REVIEW LETTERS
Volume 109, Issue 19, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.109.193004
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Funding
- EPSRC [EP/E046150]
- EPSRC [EP/E046150/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/E046150/1] Funding Source: researchfish
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We measure quantum beating patterns of photoelectron intensity caused by intramolecular vibrational energy redistribution following the excitation of a low-lying ring breathing state in S-1 parafluorotoluene. Analysis of the beating patterns reveals an exceptional sensitivity to details of the evolving wave packet which is found to contain two incoherent components, one of which rapidly dephases. This analysis enables the determination of coupling matrix elements, which are shown to depend strongly on torsional and rotational quantum numbers.
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