Search for lepton-flavor violating decays of heavy resonances and quantum black holes to eμ final states in proton-proton collisions at √s=13 TeV

Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Ambrogi, Federico and Asilar, Ece and Md. Ali, Mohd. Adli (2018) Search for lepton-flavor violating decays of heavy resonances and quantum black holes to eμ final states in proton-proton collisions at √s=13 TeV. Journal of High Energy Physics, 2018 (4). pp. 1-38. E-ISSN 1029-8479

	PDF (The CMS Coolaboration) - Published Version Restricted to Repository staff only Download (1MB) | Request a copy
	PDF (Scopus) - Supplemental Material Restricted to Repository staff only Download (595kB) | Request a copy
Preview	PDF Download (816kB) | Preview

Abstract

A search is reported for heavy resonances decaying into eµ final states in proton-proton collisions recorded by the CMS experiment at the CERN LHC at √ s = 13 TeV, corresponding to an integrated luminosity of 35.9 fb−1 . The search focuses on resonance masses above 200 GeV. With no evidence found for physics beyond the standard model in the eµ mass spectrum, upper limits are set at 95% confidence level on the product of the cross section and branching fraction for this lepton-flavor violating signal. Based on these results, resonant τ sneutrino production in R-parity violating supersymmetric models is excluded for masses below 1.7 TeV, for couplings λ132 = λ231 = λ 0 311 = 0.01. Heavy Z0 gauge bosons with lepton-flavor violating transitions are excluded for masses up to 4.4 TeV. The eµ mass spectrum is also interpreted in terms of non-resonant contributions from quantum black-hole production in models with one to six extra spatial dimensions, and lower mass limits are found between 3.6 and 5.6 TeV. In all interpretations used in this analysis, the results of this search improve previous limits by

Item Type:	Article (Journal)
Additional Information:	7861/65712
Uncontrolled Keywords:	Hadron-Hadron scattering (experiments), Supersymmetry
Subjects:	Q Science > Q Science (General) Q Science > QC Physics
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science Kulliyyah of Science > Department of Physics
Depositing User:	Dr Mohd Adli MD Ali
Date Deposited:	14 Aug 2018 15:56
Last Modified:	24 Jan 2019 15:58
URI:	http://irep.iium.edu.my/id/eprint/65712

Actions (login required)

View Item