Hi,(adsbygoogle = window.adsbygoogle || []).push({});

I understand that a 3x3 unitary matrix needs 9 real parameters to be specified (18 real parameters to start with then 9 equations of constraint arising from unitarity), but what I'm struggling to understand is how we can make phase changes of the form:

[tex] \mathrm{e}^{-i\beta_I} V_{IJ} \mathrm{e}^{\alpha_J} [/tex]

to make the first row and column of [itex]V_{IJ} [/itex] real leaving us with only 9-5=4 independent parameters [itex]\theta_1,\theta_2,\theta_3, \delta [/itex], is there an easy way to see this can be done?

thanks

**Physics Forums - The Fusion of Science and Community**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# CKM matrix parameters

Loading...

Similar Threads for matrix parameters | Date |
---|---|

A Question about the matrix of a pseudoscalar meson | Jan 20, 2018 |

A Reduced matrix element for 0_ --> 0+ forbidden beta decay | Aug 9, 2017 |

A Calculation a reduced matrix element using E-Wigner Th. | Aug 5, 2017 |

I Transformation matrix from Dirac to Weyl | Jun 6, 2017 |

I Bare/renormalised parameters and predictions | Dec 2, 2016 |

**Physics Forums - The Fusion of Science and Community**