Determination of the mixing angle

The phenomenon of neutrino flavor oscillations is now experimentally well established (R.D. McKeown and P. Vogel, 2004 [15]). The neutrino mixing matrix depends upon 3 mixing angles and a C P -violating phase. Two of the mixing angles have been measured but the last mixing angle, known as θ 13 , has not yet been experimentally determined to be non-zero. A variety of experimental efforts are underway to attempt establishing a well-determined finite value for θ 13 , and future experiments to further our knowledge of this angle are being proposed. I present an overview of the status of this experimental program to measure θ 13 .