Search for the Parity-Violating Effects between D- and L-alanine

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dc.creatorWang, Wenqing
dc.creatorBai, Fan
dc.creatorLiang, Zhi
dc.date2002-11-23
dc.date2002-12-22
dc.date.accessioned2026-07-07T05:48:28Z
dc.date.available2026-07-07T05:48:28Z
dc.descriptionThe contribution of parity-violating effects to the phase transition of the D-/L-alanine crystals was confirmed by 1H CRAMPS solid state NMR, DC-magnetic susceptibilities and ultrasonic measurements. It was found that the spin relaxation mechanism of alpha-H nucleus of D-alanine molecule is different from L-alanine and the effect is stronger than that of L-alanine. In addition, D-alanine undergoes a magnetic phase transition at a field of 1.0T, which is confirmed by a peak-form ultrasonic attenuation curve. DC-magnetic susceptibilities measurements of L-alanine also indicate abnormal magnetic properties, which is accompanied by a step-form ultrasonic attenuation jump and its mechanism seems different from that of D-alanine. The phase transition is considered to act as a cooperating amplification mechanism of the P-odd effects at the molecular level.
dc.description3 figures, 6 pages
dc.identifierhttps://arxiv.org/abs/physics/0211099
dc.identifierhttp://arxiv.org/abs/physics/0211099
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/85037
dc.subjectChemical Physics
dc.subjectBiological Physics
dc.titleSearch for the Parity-Violating Effects between D- and L-alanine
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