The symmetries C （particle-antiparticle interchange） and P （space inversion） hold for strong and electromagnetic interactions. After the discovery of large C and P violation in the weak interactions, it appeared t...The symmetries C （particle-antiparticle interchange） and P （space inversion） hold for strong and electromagnetic interactions. After the discovery of large C and P violation in the weak interactions, it appeared that the product CP was a good symmetry. In 1964 CP violation was observed in K^0 decays at a level given by the parameter e ≈ 2.3 ×10^-3.展开更多
The average of the six charged kaon mass measurements which we use in the Particle Listings is mK± = 493.677 ± 0.013 MeV （S = 2.4） , （1） where the error has been increased by the scale factor S. The larg...The average of the six charged kaon mass measurements which we use in the Particle Listings is mK± = 493.677 ± 0.013 MeV （S = 2.4） , （1） where the error has been increased by the scale factor S. The large scale factor indicates a serious disagreement between different input data.展开更多
The Dalitz plot distribution for K± →π±π±π干, K±→π0π0π±, and KL^0 →π＋π-π^0 can be parameterized by a series expansion such as that introduced by Weinberg [1]. We use the form
文摘The symmetries C （particle-antiparticle interchange） and P （space inversion） hold for strong and electromagnetic interactions. After the discovery of large C and P violation in the weak interactions, it appeared that the product CP was a good symmetry. In 1964 CP violation was observed in K^0 decays at a level given by the parameter e ≈ 2.3 ×10^-3.
文摘The average of the six charged kaon mass measurements which we use in the Particle Listings is mK± = 493.677 ± 0.013 MeV （S = 2.4） , （1） where the error has been increased by the scale factor S. The large scale factor indicates a serious disagreement between different input data.
文摘The Dalitz plot distribution for K± →π±π±π干, K±→π0π0π±, and KL^0 →π＋π-π^0 can be parameterized by a series expansion such as that introduced by Weinberg [1]. We use the form
