Navigation auf zora.uzh.ch

Search ZORA

ZORA (Zurich Open Repository and Archive)

DDOS: due to massive botnet requests against our ‘Advanced Search’ we have restricted access to UZH (local and VPN). Thank you for your understanding.

Search for R-parity violating decays of a top squark in proton-proton collisions at $\sqrt{s}$ = 8 TeV

CMS Collaboration; Canelli, F; Chiochia, V; Kilminster, B; Robmann, P; et al (2016). Search for R-parity violating decays of a top squark in proton-proton collisions at $\sqrt{s}$ = 8 TeV. Physics Letters B, 760:178-201.

Abstract

The results of a search for a supersymmetric partner of the top quark (top squark), pair-produced in proton–proton collisions at $\sqrt{s}$=8 TeV , are presented. The search, which focuses on R-parity violating, chargino-mediated decays of the top squark, is performed in final states with low missing transverse momentum, two oppositely charged electrons or muons, and at least five jets. The analysis uses a data sample corresponding to an integrated luminosity of 19.7 fb$^{−1}$ collected with the CMS detector at the LHC in 2012. The data are found to be in agreement with the standard model expectation, and upper limits are placed on the top squark pair production cross section at 95% confidence level. Assuming a 100% branching fraction for the top squark decay chain, $\tilde{t}→t\tilde{x}^{±}_{1},\tilde{x}^{±}_{1}→ℓ^{±} + jj$ , top squark masses less than 890 (1000) GeV for the electron (muon) channel are excluded for the first time in models with a single nonzero R-parity violating coupling $λ^{′}_{ijk}$ (i,j,k≤2) , where i,j,k correspond to the three generations.

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Scopus Subject Areas:Physical Sciences > Nuclear and High Energy Physics
Language:English
Date:2016
Deposited On:10 Jan 2017 11:15
Last Modified:15 Jun 2025 01:36
Publisher:Elsevier
ISSN:0370-2693
OA Status:Gold
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1016/j.physletb.2016.06.039
Download PDF  'Search for R-parity violating decays of a top squark in proton-proton collisions at $\sqrt{s}$ = 8 TeV'.
Preview
  • Content: Published Version
  • Licence: Creative Commons: Attribution 4.0 International (CC BY 4.0)

Metadata Export

Statistics

Citations

Dimensions.ai Metrics
12 citations in Web of Science®
12 citations in Scopus®
Google Scholar™

Altmetrics

Downloads

28 downloads since deposited on 10 Jan 2017
1 download since 12 months
Detailed statistics

Authors, Affiliations, Collaborations

Similar Publications