Experimental Measurement of the Mass of the <i>τ</i> Lepton at the Beijing Electron Positron Collider (BEPC)

BES Collaboration

Chinese Physics C> 1992, Vol. 16> Issue(S4) : 343-354

Experimental Measurement of the Mass of the τ Lepton at the Beijing Electron Positron Collider (BEPC)

BES Collaboration

Abstract
HTML
Reference
Related

PDF

Abstract：
The τ lepton mass was measured with the data taken by the Beijing spectrometer (BES) at the BEPC at the Institute of High Energy Physics in Beijing. Approximately 5000 nb^-1 integrated luminosity was accumulated. Pairs of τ lepton produced near the threshold have been studied in eμ final states. The maximum likelihood method was used for both of predicting a sequence of experimental energies to approach the threshold and data fitting. The measurement yields the τ mass of 1776.9_-0.5^+0.4 ±02 MeV.
Access

Get Citation

BES Collaboration. Experimental Measurement of the Mass of the τ Lepton at the Beijing Electron Positron Collider (BEPC)[J]. Chinese Physics C, 1992, 16(S4): 343-354.

BES Collaboration. Experimental Measurement of the Mass of the τ Lepton at the Beijing Electron Positron Collider (BEPC)[J]. Chinese Physics C, 1992, 16(S4): 343-354. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 1992-04-20

Article Metric

Article Views(1477)
PDF Downloads(4)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Experimental Measurement of the Mass of the τ Lepton at the Beijing Electron Positron Collider (BEPC)

BES Collaboration

Received Date: 1992-04-20

Abstract: The τ lepton mass was measured with the data taken by the Beijing spectrometer (BES) at the BEPC at the Institute of High Energy Physics in Beijing. Approximately 5000 nb^-1 integrated luminosity was accumulated. Pairs of τ lepton produced near the threshold have been studied in eμ final states. The maximum likelihood method was used for both of predicting a sequence of experimental energies to approach the threshold and data fitting. The measurement yields the τ mass of 1776.9_-0.5^+0.4 ±02 MeV.