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单词 C parity
释义

C parity

中文百科

电荷共轭宇称

物理学中,电荷共轭宇称英语:charge conjugate paritycharge parityC parity,可标为CP)是粒子的相乘量子数,用以描述一些粒子在电荷共轭的对称运算下的行为。

电荷共轭改变所有量子荷(quantum charge)的正负号,这些量子荷为相加量子数,包括有电荷、重子数与轻子数,以及味荷如奇异数、魅数、底数、顶数与同位旋(I3)。相对地,电荷共轭不改变粒子的质量、线动量或自旋。

英语百科

C parity 电荷共轭宇称

In physics, the C parity or charge parity is a multiplicative quantum number of some particles that describes their behavior under the symmetry operation of charge conjugation.

Charge conjugation changes the sign of all quantum charges (that is, additive quantum numbers), including the electrical charge, baryon number and lepton number, and the flavor charges strangeness, charm, bottomness, topness and Isospin (I3). In contrast, it doesn't affect the mass, linear momentum or spin of a particle.

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