Measurement of the Spectral Function for the τ− → K−K^Sν^τ Decay

Author(s)

J.P. Lees
V. Porieau
V. Tisserand
E. Grauges
A. Palano
G. Eigen
D. N. Brown
Yu G. Kolomensky
M. Fritsch
H. Koch
T. Schroeder
C. Hearty
T. S. Mattison
J. A. McKenna
R. Y. So
V. E. Blinov
A. R. Buzykaev
V. P. Druzhinin
V. B. Golubev
Milind Purohit, University of South CarolinaFollow
Et. Al.

Document Type

Article

Abstract

The decay τ−→K−KSντ has been studied using 430 × 10⁶ e+e− → _τ⁺_τ⁻ events produced at a center-of-mass energy around 10.6 GeV at the PEP-II collider and studied with the BABAR detector. The mass spectrum of the K−K_S system has been measured and the spectral function has been obtained. The measured branching fraction B(_τ− → K−K_{Sντ) =}(0.739 ± 0.011(stat) ± 0.020(syst)) × 10⁻³ is found to be in agreement with earlier measurements.

Digital Object Identifier (DOI)

https://doi.org/10.1103/PhysRevD.98.032010

Publication Info

Published in Physical Review D, Volume 98, Issue 3, 2018.

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP³.

APA Citation

Lees, J. P., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., Brown, D. N., Kolomensky, Yu. G., Fritsch, M., Koch, H., Schroeder, T., Hearty, C., Mattison, T. S., McKenna, J. A., So, R. Y., Blinov, V. E., Buzykaev, A. R., Druzhinin, V. P., Golubev, V. B., … Wu, S. L. (2018b). Measurement of the spectral function for the . Physical Review D, 98(3). https://doi.org/10.1103/physrevd.98.032010