scholarly journals Search for narrow and broad dijet resonances in proton-proton collisions at s = 13 $$ \sqrt{s}=13 $$ TeV and constraints on dark matter mediators and other new particles

2018 ◽  
Vol 2018 (8) ◽  
Author(s):  
A. M. Sirunyan ◽  
◽  
A. Tumasyan ◽  
W. Adam ◽  
F. Ambrogi ◽  
...  
Keyword(s):  
Dark Matter ◽  
Proton Proton ◽  
Proton Collisions ◽  
Proton Proton Collisions ◽  
New Particles ◽  
Dijet Resonances

scholarly journals Search for new particles in events with energetic jets and large missing transverse momentum in proton-proton collisions at $$ \sqrt{s} $$ = 13 TeV

2021 ◽  
Vol 2021 (11) ◽  
Author(s):  
◽  
A. Tumasyan ◽  
W. Adam ◽  
J. W. Andrejkovic ◽  
T. Bergauer ◽  
...  
Keyword(s):  
Dark Matter ◽  
Transverse Momentum ◽  
Hadronic Decay ◽  
Large Radius ◽  
Proton Proton ◽  
Proton Collisions ◽  
Missing Transverse Momentum ◽  
State Radiation ◽  
Proton Proton Collisions ◽  
New Particles

Abstract A search is presented for new particles produced at the LHC in proton-proton collisions at $$ \sqrt{s} $$ s = 13 TeV, using events with energetic jets and large missing transverse momentum. The analysis is based on a data sample corresponding to an integrated luminosity of 101 fb−1, collected in 2017–2018 with the CMS detector. Machine learning techniques are used to define separate categories for events with narrow jets from initial-state radiation and events with large-radius jets consistent with a hadronic decay of a W or Z boson. A statistical combination is made with an earlier search based on a data sample of 36 fb−1, collected in 2016. No significant excess of events is observed with respect to the standard model background expectation determined from control samples in data. The results are interpreted in terms of limits on the branching fraction of an invisible decay of the Higgs boson, as well as constraints on simplified models of dark matter, on first-generation scalar leptoquarks decaying to quarks and neutrinos, and on models with large extra dimensions. Several of the new limits, specifically for spin-1 dark matter mediators, pseudoscalar mediators, colored mediators, and leptoquarks, are the most restrictive to date.

scholarly journals Search for dijet resonances in proton–proton collisions at s=13TeV and constraints on dark matter and other models

2017 ◽  
Vol 769 ◽  
pp. 520-542 ◽  
Author(s):  
A.M. Sirunyan ◽  
A. Tumasyan ◽  
W. Adam ◽  
E. Asilar ◽  
T. Bergauer ◽  
...  
Keyword(s):  
Dark Matter ◽  
Proton Proton ◽  
Proton Collisions ◽  
Proton Proton Collisions ◽  
Dijet Resonances

scholarly journals Search for dijet resonances using events with three jets in proton-proton collisions at s=13TeV

2020 ◽  
Vol 805 ◽  
pp. 135448
Author(s):  
A.M. Sirunyan ◽  
A. Tumasyan ◽  
W. Adam ◽  
F. Ambrogi ◽  
T. Bergauer ◽  
...  
Keyword(s):  
Proton Proton ◽  
Proton Collisions ◽  
Proton Proton Collisions ◽  
Dijet Resonances

Implementation of the CMS-EXO-17-015 analysis in the MadAnalysis 5 framework (leptoquark and dark matter with one muon, one jet and missing transverse energy; 77.4 fb−1)

2020 ◽  
pp. 2141002
Author(s):  
Benjamin Fuks ◽  
Adil Jueid
Keyword(s):  
Dark Matter ◽  
Transverse Energy ◽  
Center Of Mass ◽  
Missing Transverse Energy ◽  
Final State ◽  
Proton Proton ◽  
Proton Collisions ◽  
Center Of Mass Energy ◽  
Scalar Leptoquarks ◽  
Proton Proton Collisions

We present an implementation of the CMS-EXO-17-015 analysis in the MadAnalysis 5 framework. The analysis targets a search for dark matter in a channel in which it originates from the production and decay of a pair of scalar leptoquarks. This search considers a luminosity [Formula: see text] of CMS data collected in 2016 and 2017, in proton-proton collisions at a center-of-mass energy of 13 TeV. The final state signature is comprised of one isolated highly-energetic muon, one jet with a large transverse momentum and a significant amount of missing transverse energy. We validate our implementation in MadAnalysis 5 for a specific leptoquark/dark matter benchmark scenario. In particular, we compare predictions obtained with MadAnalysis 5 with the official CMS results for various kinematical distributions relevant for the CMS-EXO-17-015 analysis, as well as detailed cut-flow tables. We have found an excellent agreement.

scholarly journals Search for new particles decaying to ZZ using final states with leptons and jets with the ATLAS detector in s=7 TeV proton–proton collisions

2012 ◽  
Vol 712 (4-5) ◽  
pp. 331-350 ◽  
Author(s):  
G. Aad ◽  
B. Abbott ◽  
J. Abdallah ◽  
A.A. Abdelalim ◽  
A. Abdesselam ◽  
...  
Keyword(s):  
Atlas Detector ◽  
Final States ◽  
Proton Proton ◽  
Proton Collisions ◽  
Proton Proton Collisions ◽  
New Particles
Sign in / Sign up

Export Citation Format

Share Document