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Advances in High Energy Physics
Volume 2012, Article ID 123083, 8 pages
Research Article

Exclusive Reconstruction of B-Decays with Missing Neutrals

Department of Computational Physics, Horia Hulubei National Institute of Physics and Nuclear Engineering, Atomistilor Street 407, P.O. Box MG-6, 76900 Bucharest, Romania

Received 6 September 2012; Revised 21 October 2012; Accepted 23 November 2012

Academic Editor: Bogdan Mitrica

Copyright © 2012 M. Dima. 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.


Often decay channels that are of theoretical interest cannot be reconstructed exclusively due to missing neutrals (such as neutrinos), or due to single-track vertices. This situation appears both in underground astrophysics experiments as well as in conventional accelerator experiments. A method to “recover” such missing particles from their kinematics and reconstruct “exclusively” the modes would benefit both domains in a number of ways. The main idea is to combine 4-momentum conservations in vertices with available geometric information in the event. The paper gives details of such methods on the , prototype decay, which also encounters 2-fold ambiguities in its solutions. Such ambiguities can be lifted and the paper shows how, while also addressing the potential the method has in physics analyses and detector studies.