Measurements of CP Violation and Neutral Kaon Charge Radius Using K(L) {u2192} ?+?-e+e- Decays
Author | : |
Publisher | : |
Total Pages | : 178 |
Release | : 2005 |
ISBN-10 | : OCLC:1061370092 |
ISBN-13 | : |
Rating | : 4/5 ( Downloads) |
Download or read book Measurements of CP Violation and Neutral Kaon Charge Radius Using K(L) {u2192} ?+?-e+e- Decays written by and published by . This book was released on 2005 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: CP violation and K° charge radius were measured using KL → ?+?-e+e- decays. Specifically, a unique CP-violating decay-plane asymmetry was measured along with the parameters of individual contributions to the decay invariant amplitude: (1) CP-conserving magnetic dipole direct emission form factor, (2) CP-conserving K0 charge radius transition amplitude and (3) an upper limit for the CP-violating electric dipole direct emission amplitude. The measurements were obtained from the data sample accumulated by KTeV experiment at Fermilab. KTeV had two major goals: the measurement of direct CP violation parameter Re(ϵ'/ϵ) and the study of rare kaon decays. The state of the art detector was constructed, commissioned, operated and maintained by an international collaboration of scientists from fourteen institutions. The KL → ?+?-e+esup-/sup data was accumulated over the 1997 and 1999 running periods. During that time hundreds of billions KsubL