scholarly journals Hunting for wide resonances in the dijet mass spectrum at CMS

2018 ◽  
Author(s):  
Dimitrios Karasavvas ◽  
Keyword(s):  
Mass Spectrum ◽  
Dijet Mass

STUDY OF THE DIJET INVARIANT MASS IN W + JETS EVENTS BY THE DØ COLLABORATION

2012 ◽  
Vol 27 (01) ◽  
pp. 1230002
Author(s):  
JADRANKA SEKARIC
Keyword(s):  
Mass Spectrum ◽  
Invariant Mass ◽  
Experimental Verification ◽  
Hadron Collider ◽  
Mass Range ◽  
Invariant Mass Spectrum ◽  
Dijet Production ◽  
Dijet Mass ◽  
Two Jets ◽  
Recent Claim

The recent claim by the CDF Collaboration of a possible anomalous dijet resonance in their data required experimental verification from other hadron collider experiments. We present a study of the dijet invariant mass spectrum in events with two jets produced in association with a W→ℓν boson at the DØ experiment. We investigate the dijet mass range between 110 GeV /c2 and 170 GeV /c2 and find no evidence for any resonant dijet production.

scholarly journals SEARCHES FOR DIJET RESONANCES AT HADRON COLLIDERS

2011 ◽  
Vol 26 (30n31) ◽  
pp. 5005-5055 ◽  
Author(s):  
ROBERT M. HARRIS ◽  
KONSTANTINOS KOUSOURIS
Keyword(s):  
Mass Spectrum ◽  
Large Hadron Collider ◽  
Hadron Collider ◽  
Detailed Comparison ◽  
Hadron Colliders ◽  
Quarter Century ◽  
Cern Large Hadron Collider ◽  
Dijet Mass ◽  
Model Independent ◽  
New Particles

We review the experimental searches for new particles in the dijet mass spectrum conducted at the CERN [Formula: see text], the Fermilab Tevatron Collider, and the CERN Large Hadron Collider. The theory of the QCD background and new particle signals is reviewed, with emphasis on the choices made by the experiments to model the background and signal. The experimental techniques, data, and results of dijet resonance searches at hadron colliders over the last quarter century are described and compared. Model independent and model specific limits on new particles decaying to dijets are reviewed, and a detailed comparison is made of the recently published limits from the ATLAS and CMS experiments.

scholarly journals Global analysis of dark matter simplified models with leptophobic spin-one mediators using MasterCode

2019 ◽  
Vol 79 (11) ◽  
Author(s):  
E. Bagnaschi ◽  
J. C. Costa ◽  
K. Sakurai ◽  
M. Borsato ◽  
O. Buchmueller ◽  
...  
Keyword(s):  
Dark Matter ◽  
Mass Spectrum ◽  
Global Analysis ◽  
Axial Vector ◽  
Model Parameters ◽  
Simplified Models ◽  
Parameter Spaces ◽  
Likelihood Functions ◽  
Dijet Mass ◽  
Upper Limits

Abstract We report the results of a global analysis of dark matter simplified models (DMSMs) with leptophobic mediator particles of spin one, considering the cases of both vector and axial-vector interactions with dark matter (DM) particles and quarks. We require the DMSMs to provide all the cosmological DM density indicated by Planck and other observations, and we impose the upper limits on spin-independent and -dependent scattering from direct DM search experiments. We also impose all relevant LHC constraints from searches for monojet events and measurements of the dijet mass spectrum. We model the likelihood functions for all the constraints and combine them within the framework, and probe the full DMSM parameter spaces by scanning over the mediator and DM masses and couplings, not fixing any of the model parameters. We find, in general, two allowed regions of the parameter spaces: one in which the mediator couplings to Standard Model (SM) and DM particles may be comparable to those in the SM and the cosmological DM density is reached via resonant annihilation, and one in which the mediator couplings to quarks are $$\lesssim \, 10^{-3}$$≲10-3 and DM annihilation is non-resonant. We find that the DM and mediator masses may well lie within the ranges accessible to LHC experiments. We also present predictions for spin-independent and -dependent DM scattering, and present specific results for ranges of the DM couplings that may be favoured in ultraviolet completions of the DMSMs.

scholarly journals Dijet Mass Spectrum and a Search for Quark Compositeness inp¯pCollisions at√s=1.8TeV

1999 ◽  
Vol 82 (12) ◽  
pp. 2457-2462 ◽  
Author(s):  
B. Abbott ◽  
M. Abolins ◽  
V. Abramov ◽  
B. S. Acharya ◽  
I. Adam ◽  
...  
Keyword(s):  
Mass Spectrum ◽  
Dijet Mass ◽  
Quark Compositeness

scholarly journals Study of the Dijet Mass Spectrum inpp→W+jetsEvents ats=7  TeV

2012 ◽  
Vol 109 (25) ◽  
Author(s):  
S. Chatrchyan ◽  
V. Khachatryan ◽  
A. M. Sirunyan ◽  
A. Tumasyan ◽  
W. Adam ◽  
...  
Keyword(s):  
Mass Spectrum ◽  
Dijet Mass

scholarly journals Search for heavy resonances in the W/Z-tagged dijet mass spectrum in pp collisions at 7 TeV

2013 ◽  
Vol 723 (4-5) ◽  
pp. 280-301 ◽  
Author(s):  
S. Chatrchyan ◽  
V. Khachatryan ◽  
A.M. Sirunyan ◽  
A. Tumasyan ◽  
W. Adam ◽  
...  
Keyword(s):  
Mass Spectrum ◽  
Pp Collisions ◽  
Dijet Mass ◽  
Heavy Resonances
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