skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Search for dark matter, extra dimensions, and unparticles in monojet events in proton-proton collisions at $$\sqrt{s} = 8$$ TeV

Abstract

Our 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 19.7fb -1 at a centre-of-mass energy of 8TeV. 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 spin-independent interactions. Limits are also placed on the scale parameter M D in the Arkani-Hamed, Dimopoulos, and Dvali (ADD) model of large extra dimensions, and on the unparticle model parameter Λ U. Finally, 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.

Authors:
 [1]
  1. Yerevan Physics Inst. (YerPhI) (Armenia). et al.
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Org.:
CMS Collaboration
OSTI Identifier:
1234843
Report Number(s):
FERMILAB-PUB-14-317-CMS; CERN-PH-EP-2014-164; CMS-EXO-12-048
Journal ID: ISSN 1434-6052; arXiv eprint number arXiv:1408.3583
Grant/Contract Number:  
AC02-07CH11359
Resource Type:
Accepted Manuscript
Journal Name:
European Physical Journal. C, Particles and Fields (Online)
Additional Journal Information:
Journal Name: European Physical Journal. C, Particles and Fields (Online); Journal Volume: 75; Journal Issue: 5; Journal ID: ISSN 1434-6052
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Khachatryan, Vardan. Search for dark matter, extra dimensions, and unparticles in monojet events in proton-proton collisions at $\sqrt{s} = 8$ TeV. United States: N. p., 2015. Web. doi:10.1140/epjc/s10052-015-3451-4.
Khachatryan, Vardan. Search for dark matter, extra dimensions, and unparticles in monojet events in proton-proton collisions at $\sqrt{s} = 8$ TeV. United States. doi:10.1140/epjc/s10052-015-3451-4.
Khachatryan, Vardan. Fri . "Search for dark matter, extra dimensions, and unparticles in monojet events in proton-proton collisions at $\sqrt{s} = 8$ TeV". United States. doi:10.1140/epjc/s10052-015-3451-4. https://www.osti.gov/servlets/purl/1234843.
@article{osti_1234843,
title = {Search for dark matter, extra dimensions, and unparticles in monojet events in proton-proton collisions at $\sqrt{s} = 8$ TeV},
author = {Khachatryan, Vardan},
abstractNote = {Our 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 19.7fb-1 at a centre-of-mass energy of 8TeV. 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 spin-independent 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 ΛU. Finally, 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.},
doi = {10.1140/epjc/s10052-015-3451-4},
journal = {European Physical Journal. C, Particles and Fields (Online)},
number = 5,
volume = 75,
place = {United States},
year = {2015},
month = {5}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 89 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Vector boson pair production at the LHC
journal, July 2011

  • Campbell, John M.; Ellis, R. Keith; Williams, Ciaran
  • Journal of High Energy Physics, Vol. 2011, Issue 7
  • DOI: 10.1007/JHEP07(2011)018

Search for Dark Matter in Events with One Jet and Missing Transverse Energy in p p ¯ Collisions at s = 1.96 TeV
journal, May 2012


Single- and multi-photon events with missing energy in e+e− collisions at LEP
journal, May 2004


The anti- k t jet clustering algorithm
journal, April 2008


Collider Signatures of New Large Space Dimensions
journal, March 1999

  • Mirabelli, Eugene A.; Perelstein, Maxim; Peskin, Michael E.
  • Physical Review Letters, Vol. 82, Issue 11
  • DOI: 10.1103/PhysRevLett.82.2236

MadGraph 5: going beyond
journal, June 2011

  • Alwall, Johan; Herquet, Michel; Maltoni, Fabio
  • Journal of High Energy Physics, Vol. 2011, Issue 6
  • DOI: 10.1007/JHEP06(2011)128

Search for Low-Mass Weakly Interacting Massive Particles Using Voltage-Assisted Calorimetric Ionization Detection in the SuperCDMS Experiment
journal, January 2014


Beyond effective field theory for dark matter searches at the LHC
journal, January 2014

  • Buchmueller, O.; Dolan, Matthew J.; McCabe, Christopher
  • Journal of High Energy Physics, Vol. 2014, Issue 1
  • DOI: 10.1007/JHEP01(2014)025

Search for New Physics with a Monojet and Missing Transverse Energy in p p Collisions at s = 7 TeV
journal, November 2011


PYTHIA 6.4 physics and manual
journal, May 2006


Light dark matter and Z′ dark force at colliders
journal, July 2012

  • An, Haipeng; Ji, Xiangdong; Wang, Lian-Tao
  • Journal of High Energy Physics, Vol. 2012, Issue 7
  • DOI: 10.1007/JHEP07(2012)182

The Tevatron at the frontier of dark matter direct detection
journal, December 2010

  • Bai, Yang; Fox, Patrick J.; Harnik, Roni
  • Journal of High Energy Physics, Vol. 2010, Issue 12
  • DOI: 10.1007/JHEP12(2010)048

The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
journal, July 2014

  • Alwall, J.; Frederix, R.; Frixione, S.
  • Journal of High Energy Physics, Vol. 2014, Issue 7
  • DOI: 10.1007/JHEP07(2014)079

FastJet user manual: (for version 3.0.2)
journal, March 2012


Missing energy signatures of dark matter at the LHC
journal, March 2012


Search for new phenomena with the monojet and missing transverse momentum signature using the ATLAS detector in <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>7</mml:mn><mml:mspace width="0.25em"/><mml:mtext>TeV</mml:mtext></mml:math> proton–proton collisions
journal, November 2011


The hierarchy problem and new dimensions at a millimeter
journal, June 1998


Geant4 developments and applications
journal, February 2006

  • Allison, J.; Amako, K.; Apostolakis, J.
  • IEEE Transactions on Nuclear Science, Vol. 53, Issue 1
  • DOI: 10.1109/TNS.2006.869826

Real emission and virtual exchange of gravitons and unparticles in Pythia8
journal, September 2010


Search for dark matter and large extra dimensions in monojet events in pp collisions at $ \sqrt {s} = {7} $ TeV
journal, September 2012

  • Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.
  • Journal of High Energy Physics, Vol. 2012, Issue 9
  • DOI: 10.1007/JHEP09(2012)094

Single- and multi-photon production in ee collisions at $\sqrt{s}$ up to 209 GeV
journal, May 2003


Performance of CMS muon reconstruction in pp collision events at √s = 7 TeV
journal, October 2012


Matching NLO QCD computations with parton shower simulations: the POWHEG method
journal, November 2007


The CMS experiment at the CERN LHC
journal, August 2008


Direct collider signatures of large extra dimensions
journal, August 1999


Dark Matter Candidates from Particle Physics and Methods of Detection
journal, August 2010


Photonic events with missing energy in $\mathrme^+\mathrme^-$ collisions at $\sqrt{s}$ = 189 GeV
journal, December 2000


Phenomenology of the production, decay, and detection of new hadronic states associated with supersymmetry
journal, July 1978


A first unbiased global NLO determination of parton distributions and their uncertainties
journal, October 2010


Final Analysis and Results of the Phase II SIMPLE Dark Matter Search
journal, May 2012


MadGraph/MadEvent v4: the new web generation
journal, September 2007


New Generation of Parton Distributions with Uncertainties from Global QCD Analysis
journal, July 2002


Probing nonstandard standard model backgrounds with LHC monojets
journal, August 2012


First Results from the LUX Dark Matter Experiment at the Sanford Underground Research Facility
journal, March 2014


Next-to-leading-order QCD corrections to graviton production at hadron colliders
journal, May 2010


Search for TeV Gamma-ray Emission from GRB 100621A, an extremely bright GRB in X-rays, with H.E.S.S.
journal, April 2014


Mass hierarchies in supersymmetric theories
journal, October 1981


Bounds from LEP on unparticle interactions with electroweak bosons
journal, July 2011


Results from a Low-Energy Analysis of the CDMS II Germanium Data
journal, March 2011


Results from a Search for Light-Mass Dark Matter with a p -Type Point Contact Germanium Detector
journal, March 2011


Determination of jet energy calibration and transverse momentum resolution in CMS
journal, November 2011


Dark Matter Results from 100 Live Days of XENON100 Data
journal, September 2011


Review of Particle Physics
journal, July 2010


First dark matter search results from a 4-kg CF 3 I bubble chamber operated in a deep underground site
journal, September 2012


A brief introduction to PYTHIA 8.1
journal, June 2008

  • Sjöstrand, Torbjörn; Mrenna, Stephen; Skands, Peter
  • Computer Physics Communications, Vol. 178, Issue 11
  • DOI: 10.1016/j.cpc.2008.01.036

Measurements of inclusive W and Z cross sections in pp collisions at $ \sqrt {s} = 7 $ TeV
journal, January 2011

  • Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.
  • Journal of High Energy Physics, Vol. 2011, Issue 1
  • DOI: 10.1007/JHEP01(2011)080

New parton distributions for collider physics
journal, October 2010


Parton distributions for the LHC
journal, July 2009


Confidence level computation for combining searches with small statistics
journal, September 1999

  • Junk, Thomas
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 434, Issue 2-3
  • DOI: 10.1016/S0168-9002(99)00498-2

Silicon Detector Dark Matter Results from the Final Exposure of CDMS II
journal, December 2013


CMS tracking performance results from early LHC operation
journal, November 2010


Phenomenology, astrophysics, and cosmology of theories with submillimeter dimensions and TeV scale quantum gravity
journal, March 1999


Constraints on light Majorana dark matter from colliders
journal, January 2011


Search for dark matter candidates and large extra dimensions in events with a jet and missing transverse momentum with the ATLAS detector
journal, April 2013


NLO single-top production matched with shower in POWHEG: s - and t -channel contributions
journal, September 2009


Existence and Nature of Dark Matter in the Universe
journal, September 1987


Quantum gravity and extra dimensions at high-energy colliders
journal, April 1999


Interleaved parton showers and tuning prospects
journal, March 2011

  • Corke, Richard; Sjöstrand, Torbjörn
  • Journal of High Energy Physics, Vol. 2011, Issue 3
  • DOI: 10.1007/JHEP03(2011)032

An Indirect Search for Weakly Interacting Massive Particles in the sun Using 3109.6 days of Upward-Going Muons in Super-Kamiokande
journal, November 2011


Geant4—a simulation toolkit
journal, July 2003

  • Agostinelli, S.; Allison, J.; Amako, K.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 506, Issue 3
  • DOI: 10.1016/S0168-9002(03)01368-8

Presentation of search results: the CL s technique
journal, September 2002


NINE-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE ( WMAP ) OBSERVATIONS: COSMOLOGICAL PARAMETER RESULTS
journal, September 2013

  • Hinshaw, G.; Larson, D.; Komatsu, E.
  • The Astrophysical Journal Supplement Series, Vol. 208, Issue 2
  • DOI: 10.1088/0067-0049/208/2/19

Search for Large Extra Dimensions via Single Photon plus Missing Energy Final States at s = 1.96 TeV
journal, June 2008


Unparticle Physics
journal, May 2007


Maverick dark matter at colliders
journal, September 2010

  • Beltrán, Maria; Hooper, Dan; Kolb, Edward W.
  • Journal of High Energy Physics, Vol. 2010, Issue 9
  • DOI: 10.1007/JHEP09(2010)037

Performance of τq-lepton reconstruction and identification in CMS
journal, January 2012


Constraints on dark matter from colliders
journal, December 2010


Multiyear search for dark matter annihilations in the Sun with the AMANDA-II and IceCube detectors
journal, February 2012


    Works referencing / citing this record:

    Photonic events with missing energy in $\mathrme^+\mathrme^-$ collisions at $\sqrt{s}$ = 189 GeV
    journal, December 2000


    Phenomenology of the production, decay, and detection of new hadronic states associated with supersymmetry
    journal, July 1978


    Mass hierarchies in supersymmetric theories
    journal, October 1981


    A brief introduction to PYTHIA 8.1
    journal, June 2008

    • Sjöstrand, Torbjörn; Mrenna, Stephen; Skands, Peter
    • Computer Physics Communications, Vol. 178, Issue 11
    • DOI: 10.1016/j.cpc.2008.01.036

    Real emission and virtual exchange of gravitons and unparticles in Pythia8
    journal, September 2010


    A first unbiased global NLO determination of parton distributions and their uncertainties
    journal, October 2010


    Single- and multi-photon events with missing energy in e+e− collisions at LEP
    journal, May 2004


    Constraints on light Majorana dark matter from colliders
    journal, January 2011


    Search for new phenomena with the monojet and missing transverse momentum signature using the ATLAS detector in <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>7</mml:mn><mml:mspace width="0.25em"/><mml:mtext>TeV</mml:mtext></mml:math> proton–proton collisions
    journal, November 2011


    Probing nonstandard standard model backgrounds with LHC monojets
    journal, August 2012


    Search for TeV Gamma-ray Emission from GRB 100621A, an extremely bright GRB in X-rays, with H.E.S.S.
    journal, April 2014


    NINE-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE ( WMAP ) OBSERVATIONS: COSMOLOGICAL PARAMETER RESULTS
    journal, September 2013

    • Hinshaw, G.; Larson, D.; Komatsu, E.
    • The Astrophysical Journal Supplement Series, Vol. 208, Issue 2
    • DOI: 10.1088/0067-0049/208/2/19

    Presentation of search results: the CL s technique
    journal, September 2002


    New Generation of Parton Distributions with Uncertainties from Global QCD Analysis
    journal, July 2002


    PYTHIA 6.4 physics and manual
    journal, May 2006


    MadGraph/MadEvent v4: the new web generation
    journal, September 2007


    Matching NLO QCD computations with parton shower simulations: the POWHEG method
    journal, November 2007


    The anti- k t jet clustering algorithm
    journal, April 2008


    NLO single-top production matched with shower in POWHEG: s - and t -channel contributions
    journal, September 2009


    Parton distributions for the LHC
    journal, July 2009


    CMS tracking performance results from early LHC operation
    journal, November 2010


    FastJet user manual: (for version 3.0.2)
    journal, March 2012


    Analysing parameter space correlations of recent 13 TeV gluino and squark searches in the pMSSM
    journal, March 2017


    Single- and multi-photon production in ee collisions at $\sqrt{s}$ up to 209 GeV
    journal, May 2003


    Dark Matter Candidates from Particle Physics and Methods of Detection
    journal, August 2010


    Existence and Nature of Dark Matter in the Universe
    journal, September 1987