Unbinned angular analysis of
Z. R. Huang (Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France); E. Kou (Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France); C. D. Lü (Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China and School of Physics, University of Chinese Academy of Sciences, Beijing 100049, China); R. Y. Tang (Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China and School of Physics, University of Chinese Academy of Sciences, Beijing 100049, China)
In this article, we perform a sensitivity study of an unbinned angular analysis of the decay, including the contributions from the right-handed current. We show that the angular observable can constrain very strongly the right-handed current without the intervention of the yet unsolved puzzle.