Title
Search for dark matter, extra dimensions, and unparticles in monojet events in proton-proton collisions <tex>$\sqrt{s}=$</tex>=8TeV Search for dark matter, extra dimensions, and unparticles in monojet events in proton-proton collisions <tex>$\sqrt{s}=$</tex>=8TeV
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Berlin ,
Subject
Physics
Source (journal)
European physical journal : C : particles and fields. - Berlin
Volume/pages
75(2015) :5 , 25 p.
ISSN
1434-6044
ISI
000355681400003
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Results are presented from a search for particle dark matter (DM), extra dimensions, and unparticles using events containing a jet and an imbalance in transverse momentum. The data were collected by the CMS detector in proton-proton collisions at the LHC and correspond to an integrated luminosity of 19.7 fb(-1) at a centre-of-mass energy of 8 TeV. The number of observed events is found to be consistent with the standard model prediction. Limits are placed on the DM-nucleon scattering cross section as a function of the DM particle mass for spin-dependent and spinin-dependent interactions. Limits are also placed on the scale parameter MD in the Arkani-Hamed, Dimopoulos, and Dvali (ADD) model of large extra dimensions, and on the unparticle model parameter Lambda(U). The constraints on ADD models and unparticles are the most stringent limits in this channel and those on the DM-nucleon scattering cross section are an improvement over previous collider results.
E-info
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Full text (open access)
https://repository.uantwerpen.be/docman/irua/24c1ec/10740.pdf
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