Journal article

The impact of heavy-quark loops on LHC dark matter searches

Abstract:: If only tree-level processes are included in the analysis, LHC monojet searches give weak constraints on the dark matter-proton scattering cross section arising from the exchange of a new heavy scalar or pseudoscalar mediator with Yukawa-like couplings to quarks. In this letter we calculate the constraints on these interactions from the CMS 5.0/fb and ATLAS 4.7/fb searches for jets with missing energy including the effects of heavy-quark loops. We find that the inclusion of such contributions leads to a dramatic increase in the predicted cross section and therefore a significant improvement of the bounds from LHC searches.

Publication status:: Published

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APA Style

Haisch, U., Kahlhoefer, F., & Unwin, J. (2012). The impact of heavy-quark loops on LHC dark matter searches. JHEP, 1307(7), 125.

MLA Style

Haisch, U, et al. “The Impact of Heavy-Quark Loops on LHC Dark Matter Searches.” JHEP, vol. 1307, no. 7, 2012, p. 125.

Chicago Style

Haisch, U, F Kahlhoefer, and J Unwin. 2012. “The Impact of Heavy-Quark Loops on LHC Dark Matter Searches.” JHEP 1307 (7): 125.
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Publisher copy:: 10.1007/JHEP07(2013)125

Authors

+ Haisch, U More by this author

Institution:: University of Oxford
Division:: MPLS
Department:: Physics
Sub department:: Theoretical Physics
Role:: Author

+ Kahlhoefer, F More by this author

Institution:: University of Oxford
Division:: MPLS
Department:: Physics
Role:: Author

+ Unwin, J More by this author

Role:: Author

Journal:: JHEP More from this journal
Volume:: 1307
Issue:: 7
Pages:: 125
Publication date:: 2012-08-22
DOI:: 10.1007/JHEP07(2013)125
EISSN:: 1029-8479
ISSN:: 1029-8479

Language:: English
Keywords:: hep-ph

hep-ex
Pubs id:: pubs:353985
UUID:: uuid:0040781b-d7e1-4b2d-af9c-2499b58d98cd
Local pid:: pubs:353985
Source identifiers:: 353985
Deposit date:: 2013-11-16
ARK identifier:: ark:/29072/ora_0040781bd7e14b2daf9c2499b58d98cd

Terms of use

Copyright date:: 2012
Notes:: 12 pages, 1 table, 3 figures, v2: extended discussion and improved
relic density calculation - matches published version

Licence:: Terms and Conditions of Use for Oxford University Research Archive

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