Interference effects in heavy W'-boson searches at the LHC

Accomando, Elena, Becciolini, Diego, De Curtis, Stefania, Dominici, Daniele and Fedeli, Luca (2011) Interference effects in heavy W'-boson searches at the LHC. Physical Review D, 85, (11), 115017. (doi:10.1103/PhysRevD.85.115017).


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Interference effects are widely neglected in searches for new physics. This is the case in recent publications on searches for W?-bosons using leptonic final states. We examine the effects of interference on distributions frequently used to determine mass limits for possible W?-bosons and show that there are important qualitative effects on the behaviour of the new physics signal. There are two main consequences. The first is that current exclusion limits, where interferences effects have not been considered, are likely to have been overestimated. The second is that the way observed limits on the cross-section are presented, in terms of the contribution of new physics to the total cross-section, is not meaningful.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1103/PhysRevD.85.115017
ISSNs: 1550-7998 (print)
1089-4918 (electronic)
Related URLs:
Subjects: Q Science > QC Physics
Divisions : Faculty of Physical Sciences and Engineering > Physics and Astronomy > Theoretical Partical Physics Group
ePrint ID: 339112
Accepted Date and Publication Date:
October 2011Published
Date Deposited: 24 May 2012 09:18
Last Modified: 31 Mar 2016 14:28

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