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Extracting the dark matter mass from single stage cascade decays at the LHC

Cohen, Timothy and Kuflik, Eric and Zurek, Kathryn M. (2010) Extracting the dark matter mass from single stage cascade decays at the LHC. Journal of High Energy Physics, 2010 (11). Art. No. 8. ISSN 1029-8479.

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We explore a variant on the M T2 kinematic variable which enables dark matter mass measurements for simple, one stage, cascade decays. This will prove useful for constraining a subset of supersymmetric processes, or a class of leptophilic dark matter models at the LHC. We investigate the statistical reach of these measurements and discuss which sources of error have the largest effects. For example, we find that using only single stage cascade decays with initial state radiation, a measurement of a 150 GeV dark matter candidate can be made to O(10%) for a parent mass of 300 GeV with a production cross section of 100 fb and 100 fb^(−1) of integrated luminosity provided that backgrounds can be tightly controlled.

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Additional Information:© SISSA 2010. JHEP is an open-access journal funded by SCOAP3 and licensed under CC BY 4.0. Received: March 18, 2010. Revised: October 12, 2010. Accepted: October 15, 2010. Published: November 4, 2010. We thank Aaron Pierce, Ran Lu and Liantao Wang for useful comments and discussions. This work was supported by the DOE Grant #DE-FG02-95ER40899 (EK) and a String Vacuum Project Graduate Fellow, funded through NSF grant PHY/0917807 (EK) and by the NSF CAREER Grant NSF-PHY-0743315 (TC).
Funding AgencyGrant Number
Department of Energy (DOE)DE-FG02-95ER40899
Subject Keywords:Supersymmetry Phenomenology
Issue or Number:11
Record Number:CaltechAUTHORS:20190613-110921423
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Official Citation:Cohen, T., Kuflik, E. & Zurek, K.M. J. High Energ. Phys. (2010) 2010: 8.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:96374
Deposited By: George Porter
Deposited On:17 Jun 2019 16:28
Last Modified:03 Oct 2019 21:21

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