| 单词 | helicity |
| 释义 | helicity/ (hɪˈlɪsɪtɪ) / noun plural -tiesphysics the projection of the spin of an elementary particle on the direction of propagation Word Origin for helicityC20: from helix + -ity Words nearby helicityheliced, helices, helichrysum, helicine, helicine artery, helicity, helicline, helico-, helicograph, helicoid, helicoid cyme Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Scientific definitions for helicityhelicity [ hə-lĭs′ĭ-tē, hē′ ] The projection of a particle's spin vector in the direction of its momentum vector, being positive if it points in the same direction, and negative if it points in the opposite direction. Helicity is in effect the handedness, or chirality, of the spin of a particle. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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