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Weighing wimps with kinks at colliders: invisible particle mass measurements from endpoints


Type

Article

Change log

Authors

Barr, AJ 
Lester, CG 

Abstract

We consider the application of endpoint techniques to the problem of mass determination for new particles produced at a hadron collider, where these particles decay to an invisible particle of unknown mass and one or more visible particles of known mass. We also consider decays of these types for pair-produced particles and in each case consider situations both with and without initial state radiation. We prove that, in most (but not all) cases, the endpoint of an appropriate transverse mass observable, considered as a function of the unknown mass of the invisible particle, has a kink at the true value of the invisible particle mass. The co-ordinates of the kink yield the masses of the decaying particle and the invisible particle. We discuss the prospects for implementing this method at the LHC.

Description

Keywords

hadronic colliders, beyond standard model, supersymmetric standard model, TRANSVERSE ENERGY, HADRON COLLIDERS, MISSING ENERGY, ELECTRONS

Journal Title

J HIGH ENERGY PHYS

Conference Name

Journal ISSN

1126-6708
1029-8479

Volume Title

Publisher

Springer Science and Business Media LLC