Nuclear spin relaxation in liquid hydrogen |
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| Affiliation: | 1. National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Kashirskoe shosse 31, 115409 Moscow, Russia;2. Institute of Biomedical Chemistry (IBMC), Pogodinskaya Street, 10, Build. 8, 119121 Moscow, Russia;1. Department of Geology, Savitribai Phule Pune University, Pune 411 007, India;2. Departamento de Agronomía, Universidad de Córdoba, Edificio C4, Campus de Rabanales, Córdoba 14071, Spain |
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| Abstract: | The proton longitudinal relaxation time, T1, has been measured in dilute solutions of orthohydrogen in parahydrogen over a range of temperature and composition. Below 1.75% orthohydrogen the temperature dependence of T1 observed at higher concentration is reversed. This fact is interpreted in terms of an anisotropic intermolecular force which is of longer range for ortho-ortho than for ortho-para pairs, in keeping with previous interpretations of T1 in the gaseous state. |
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