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Advances in High Energy Physics
Volume 2019, Article ID 2567070, 5 pages
Research Article

A Method for the Direct Absolute Measurement of Decay with (3686) Data Set

School of Nuclear Science and Technology, University of South China, Hengyang, Hunan 421001, China

Correspondence should be addressed to Bo Zheng; moc.361@csu_obgnehz

Received 9 November 2018; Accepted 12 December 2018; Published 17 January 2019

Guest Editor: Ling-Yun Dai

Copyright © 2019 Fang Yan and Bo Zheng. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


To take the full advantage of the data set collected at collider at charm energy region, a tag method is developed to directly measure the meson decay branching fractions absolutely. The meson decay can be measured with the sample tagged by the two soft charged pions from the decay . This method is illustrated by comparing the input and output branching fractions of with 106 million inclusive Monte Carlo samples. The consistent result confirms the validity of the tag method.