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The lepton flavour violating Higgs decays at the HL-LHC and the ILC

Banerjee, Shankha and Bhattacherjee, Biplob and Mitra, Manimala and Spannowsky, Michael (2016) The lepton flavour violating Higgs decays at the HL-LHC and the ILC. In: JOURNAL OF HIGH ENERGY PHYSICS (7).

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Official URL: http://dx.doi.org/10.1007/JHEP07(2016)059


Run-I results from the CMS collaboration show an excess of events in the decay h -> mu tau(e) with a local significances of 2.4 sigma. This could be the first hint of flavour violation in the Higgs sector. We summarise the bounds on the flavour violating Yukawa couplings from direct searches, low energy measurements and projected future experiments. We discuss the sensitivity of upcoming HL-LHC runs and future lepton colliders in measuring lepton-flavour violating couplings using an effective field theory framework. For the HL-LHC we find limits on BR (h -> mu tau) and BR (h -> e tau) less than or similar to Omicron(0.5)% and on BR (h -> e mu) less than or similar to Omicron (0.02)%. For an ILC with center-of-mass energy of 1TeV we expect BR (h -> e tau) and BR (h -> mu tau) to be measurable down to Omicron (0.2)%.

Item Type: Journal Article
Publisher: SPRINGER
Additional Information: Copy right for this article belongs to the SPRINGER, 233 SPRING ST, NEW YORK, NY 10013 USA
Keywords: Beyond Standard Model; Higgs Physics
Department/Centre: Division of Physical & Mathematical Sciences > Centre for High Energy Physics
Date Deposited: 03 Dec 2016 04:16
Last Modified: 03 Dec 2016 04:16
URI: http://eprints.iisc.ac.in/id/eprint/54460

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