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Constraining flavoured contact interactions at the LHC

Sacha Davidson 1 S. Descotes-Genon 2 
1 Théorie
IP2I Lyon - Institut de Physique des 2 Infinis de Lyon
Abstract : Contact interactions are the low-energy footprints of New Physics, so ideally, constraints upon them should be as generic and model independent as possible. Hadron colliders search for four-quark contact interactions with incident valence quarks, and the LHC currently sets limits on a flavour sum (over uu,dd and ud) of selected interactions. We approximately translate these bounds to a more complete (and larger) set of dimension-six interactions of specified flavours. These estimates are obtained at the parton level, are mostly analytic and are less restrictive than the experimental bounds on flavour-summed interactions. The estimates may scale in a simple way to higher energy and luminosity.
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Submitted on : Tuesday, November 26, 2013 - 7:29:46 AM
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Sacha Davidson, S. Descotes-Genon. Constraining flavoured contact interactions at the LHC. Journal of High Energy Physics, Springer, 2014, 05(2014), pp.066. ⟨10.1007/JHEP05(2014)066⟩. ⟨in2p3-00909174⟩



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