Search for scalar leptoquarks in pp collisions at √S = 13TeV with the ATLAS experiment

M Aaboud; G Aad; B Abbott; J Abdallah; O Abdinov; B Abeloos; Torsten Åkesson; Simona Bocchetta; LENE Bryngemark; Caterina Doglioni; Anders Floderus; Vincent Hedberg; Göran Jarlskog; Else Lytken; Ulf Mjörnmark; Oxana Smirnova; Oleksandr Viazlo; ATLAS Collaboration

doi:10.1088/1367-2630/18/9/093016

Back

Search for scalar leptoquarks in pp collisions at √S = 13TeV with the ATLAS experiment

Journal article

Open access

Peer reviewed

Search for scalar leptoquarks in pp collisions at √S = 13TeV with the ATLAS experiment

M Aaboud, G Aad, B Abbott, J Abdallah, O Abdinov, B Abeloos, Torsten Åkesson, Simona Bocchetta, LENE Bryngemark, Caterina Doglioni, …

New journal of physics, Vol.18(9), 093016

2016

DOI: 10.1088/1367-2630/18/9/093016

Files and links (1)

url

https://doi.org/10.1088/1367-2630/18/9/093016View

Published (Version of record) Open Access

Abstract

An inclusive search for a new-physics signature of lepton-jet resonances has been performed by the ATLAS experiment. Scalar leptoquarks, pair-produced in pp collisions at s √S13 TeV at the large hadron collider, have been considered. An integrated luminosity of 3.2 fb−1, corresponding to the full 2015 dataset was used. First (second) generation leptoquarks were sought in events with two electrons (muons) and two or more jets. The observed event yield in each channel is consistent with Standard Model background expectations. The observed (expected) lower limits on the leptoquark mass at 95% confidence level are 1100 and 1050 GeV (1160 and 1040 GeV) for first and second generation leptoquarks, respectively, assuming a branching ratio into a charged lepton and a quark of 100%. Upper limits on the aforementioned branching ratio are also given as a function of leptoquark mass. Compared with the results of earlier ATLAS searches, the sensitivity is increased for leptoquark masses above 860 GeV, and the observed exclusion limits confirm and extend the published results. © 2016 CERN for the benefit of the ATLAS Collaboration.

High Energy Physics

Natural Sciences

Physical Sciences

ATLAS

ATLAS experiment

Branching ratio

Charged leptons

Confidence levels

Elementary particles

Fighter aircraft

Fysik

Integrated luminosity

Large Hadron Collider

Leptoquark

LHC

Naturvetenskap

Second generation

Standard model

Subatomic Physics

Subatomär fysik

Tellurium compounds

Details

Title: Subtitle: Search for scalar leptoquarks in pp collisions at √S = 13TeV with the ATLAS experiment
Creators: M Aaboud - Premier University
G Aad - Aix-Marseille Université
B Abbott - University of Oklahoma
J Abdallah - University of Iowa
O Abdinov - Azerbaijan National Academy of Sciences
B Abeloos - Université Paris-Saclay
Torsten Åkesson - Particle Physics
Simona Bocchetta - Particle Physics
LENE Bryngemark - Particle Physics
Caterina Doglioni - Lund University
Anders Floderus - Particle Physics
Vincent Hedberg - Particle Physics
Göran Jarlskog - Particle Physics
Else Lytken - Particle Physics
Ulf Mjörnmark - Particle Physics
Oxana Smirnova - Particle Physics
Oleksandr Viazlo - Particle Physics
ATLAS Collaboration
Contributors: U Mallik (Contributor) - University of Iowa, Physics and Astronomy
Resource Type: Journal article
Publication Details: New journal of physics, Vol.18(9), 093016
DOI: 10.1088/1367-2630/18/9/093016
ISSN: 1367-2630
eISSN: 1367-2630
Grant note: name: Please see acknowledgements section of paper
Language: English
Date published: 2016
Academic Unit: Physics and Astronomy
Record Identifier: 9984199852102771

Metrics

18 Record Views

69 Times Cited - Web of Science