dorsal/arxiv
View SchemaSearch for the Parity-Violating Effects between D- and L-alanine
| Authors | Wenqing Wang, Fan Bai, Zhi Liang |
|---|---|
| Categories | |
| ArXiv ID | physics/0211099 |
| URL | https://arxiv.org/abs/physics/0211099 |
Abstract
The 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.
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"abstract": "The contribution of parity-violating effects to the phase transition of the\nD-/L-alanine crystals was confirmed by 1H CRAMPS solid state NMR, DC-magnetic\nsusceptibilities and ultrasonic measurements. It was found that the spin\nrelaxation mechanism of alpha-H nucleus of D-alanine molecule is different from\nL-alanine and the effect is stronger than that of L-alanine. In addition,\nD-alanine undergoes a magnetic phase transition at a field of 1.0T, which is\nconfirmed by a peak-form ultrasonic attenuation curve. DC-magnetic\nsusceptibilities measurements of L-alanine also indicate abnormal magnetic\nproperties, which is accompanied by a step-form ultrasonic attenuation jump and\nits mechanism seems different from that of D-alanine. The phase transition is\nconsidered to act as a cooperating amplification mechanism of the P-odd effects\nat the molecular level.",
"arxiv_id": "physics/0211099",
"authors": [
"Wenqing Wang",
"Fan Bai",
"Zhi Liang"
],
"categories": [
"physics.chem-ph",
"physics.bio-ph"
],
"title": "Search for the Parity-Violating Effects between D- and L-alanine",
"url": "https://arxiv.org/abs/physics/0211099"
},
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