Experimental Status of B Physics

“New Physics" (NP) refers to physics beyond the “Standard Model," the paradigm that we have constructed to explain our current high energy physics data [1]. We know, however, that NP is required to explain certain global phenomena including the Baryon asymmetry of the Universe, without which we could not exist, or the “Dark Matter," found first by Zwicky studying rotation curves of galaxies [2]. An even more mysterious phenomena called “Dark Energy" may also have a connection to particle physics experiments [3], perhaps via “Extra Dimensions" [4]. The fundamental goals of B decay studies are to discover, or help interpret, NP found elsewhere. Additional goals include measuring “fundamental constants" revealed to us by studying Weak interactions and understand the theory of strong interactions, QCD, necessary to interpret our measurements.