Mass determination in sequential particle decay chains

Details Mass determination in sequential particle decay chains Mass determination in sequential particle decay chains

2009-07-30

arxiv.org/abs/0907.5307v2

JHEP 0909:124,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 3 figures. Mention of application to shorter decay chains and references added

Scientific paper

10.1088/1126-6708/2009/09/124

A simple method is proposed for determining the masses of new particles in collider events containing a pair of decay chains (not necessarily identical) of the form Z -> Y+1, Y -> X+2, X -> N+3, where 1,2 and 3 are visible but N is not. Initial study of a possible supersymmetric case suggests that the method can determine the four unknown masses in effectively identical chains with good accuracy from samples of a few tens of events.

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