|
|||||
|
|
Measurement of the tau lepton mass and an upper limit on the mass difference between tau+ and tau- |
|
| Authors: | Belous K Shapkin M Sokolov A Abe K Abe K Adachi I Aihara H Anipko D Arinstein K Aulchenko V Aushev T Bakich A M Barberio E Bay A Bedny I Bitenc U Bizjak I Blyth S Bondar A Bozek A Bracko M Browder T E Chang M-C Chen A Chen K-F Chen W T Cheon B G Chistov R Choi Y Choi Y K Cole S Dalseno J Drutskoy A Eidelman S Epifanov D Fratina S Fujikawa M Gabyshev N Gershon T Gokhroo G Golob B Ha H Haba J Hasegawa Y Hayasaka K Hayashii H Hazumi M Heffernan D Hokuue T Hoshi Y Hou S Hou W-S Iijima T Ikado K Imoto A Inami K Ishikawa A Itoh R Iwasaki M Iwasaki Y Kaji H Kang J H Kapusta P Katayama N Kawasaki T |
| Institution: | Institute of High Energy Physics, Protvino. |
| Abstract: | The mass of the tau lepton has been measured in the decay mode tau-->3pinutau using a pseudomass technique. The result obtained from 414 fb-1 of data collected with the Belle detector is Mtau=1776.61+/-0.13(stat)+/-0.35(sys)] MeV/c2. The upper limit on the relative mass difference between positive and negative tau leptons is |Mtau+-Mtau-|/Mtau<2.8 x 10-4 at 90% confidence level. |
| Keywords: | |
| 本文献已被 PubMed 等数据库收录！ | |