Search for long-lived particles with displaced vertices in multijet events in proton-proton collisions at  √ s = 13 TeV

CMS Collaboration; A. M. Sirunyan

doi:10.1103/PhysRevD.98.092011

Back

Search for long-lived particles with displaced vertices in multijet events in proton-proton collisions at √ s = 13 TeV

Journal article

Open access

Peer reviewed

Search for long-lived particles with displaced vertices in multijet events in proton-proton collisions at √ s = 13 TeV

CMS Collaboration and A. M. Sirunyan

Physical review. D, Particles, fields, gravitation, and cosmology, Vol.98(9), 092011

11/16/2018

DOI: 10.1103/PhysRevD.98.092011

Files and links (1)

url

https://doi.org/10.1103/PhysRevD.98.092011View

Published (Version of record) Open Access

Abstract

Results are reported from a search for long-lived particles in proton-proton collisions at √ s = 13 TeV delivered by the CERN LHC and collected by the CMS experiment. The data sample, which was recorded during 2015 and 2016, corresponds to an integrated luminosity of 38.5 fb − 1 . This search uses benchmark signal models in which long-lived particles are pair-produced and each decays into two or more quarks, leading to a signal with multiple jets and two displaced vertices composed of many tracks. No events with two well-separated high-track-multiplicity vertices are observed. Upper limits are placed on models of R -parity violating supersymmetry in which the long-lived particles are neutralinos or gluinos decaying solely into multijet final states or top squarks decaying solely into dijet final states. For neutralino, gluino, or top squark masses between 800 and 2600 GeV and mean proper decay lengths between 1 and 40 mm, the analysis excludes cross sections above 0.3 fb at 95% confidence level. Gluino and top squark masses are excluded below 2200 and 1400 GeV, respectively, for mean proper decay lengths between 0.6 and 80 mm. A method is provided for extending the results to other models with pair-produced long-lived particles.

Particle production

Superpartners

Hadron colliders

Details

Title: Subtitle: Search for long-lived particles with displaced vertices in multijet events in proton-proton collisions at √ s = 13 TeV
Creators: CMS Collaboration (Institution)
A. M. Sirunyan - A. Alikhanyan National Laboratory
Contributors: M. Alhusseini (Contributor) - University of Iowa
B. Bilki (Contributor) - University of Iowa
W Clarida (Contributor) - University of Iowa
Kamuran Dilsiz (Contributor) - University of Iowa, Physics and Astronomy
S. Durgut (Contributor) - University of Iowa
R. P. Gandrajula (Contributor) - University of Iowa
M. Haytmyradov (Contributor) - University of Iowa
V Khristenko (Contributor) - University of Iowa
J-P Merlo (Contributor) - University of Iowa
Alexi Mestvirishvili (Contributor) - University of Iowa, Physics and Astronomy
A. Moeller (Contributor) - University of Iowa
Jane M Nachtman (Contributor) - University of Iowa, Physics and Astronomy
Hasan Ogul (Contributor) - University of Iowa, Physics and Astronomy
Yasar Onel (Contributor) - University of Iowa, Physics and Astronomy
F. Ozok (Contributor) - University of Iowa
Aldo Penzo (Contributor) - University of Iowa, Physics and Astronomy
C. Snyder (Contributor) - University of Iowa
E. Tiras (Contributor) - University of Iowa
James W Wetzel (Contributor) - University of Iowa, Physics and Astronomy
Resource Type: Journal article
Publication Details: Physical review. D, Particles, fields, gravitation, and cosmology, Vol.98(9), 092011
DOI: 10.1103/PhysRevD.98.092011
ISSN: 1550-7998
eISSN: 1550-2368
Date published: 11/16/2018
Academic Unit: Physics and Astronomy
Record Identifier: 9984440058302771

Metrics

3 Record Views

20 Times Cited - Web of Science

See more details