DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Search for physics beyond the standard model in events with two leptons, jets, and missing transverse momentum in pp collisions at √s = 8 TeV

Abstract

Our search is presented for physics beyond the standard model in final states with two opposite-sign same-flavor leptons, jets, and missing transverse momentum. The data sample corresponds to an integrated luminosity of 19.4 fb-1 of proton-proton collisions at √s = 8 TeV collected with the CMS detector at the CERN LHC in 2012. The analysis focuses on searches for a kinematic edge in the invariant mass distribution of the oppositesign same-flavor lepton pair and for final states with an on-shell Z boson. Furthermore, the observations are consistent with expectations from standard model processes and are interpreted in terms of upper limits on the production of supersymmetric particles.

Authors:
 [1]
  1. Yerevan Physics Inst. (YerPhI), Yerevan (Armenia). et al.
Publication Date:
Research Org.:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Org.:
CMS Collaboration
OSTI Identifier:
1221270
Report Number(s):
FERMILAB-PUB-15-062-CMS; CERN-PH-EP-2015-033; CMS-SUS-14-014
Journal ID: ISSN 1029-8479; arXiv eprint number arXiv:1502.06031; TRN: US1500704
Grant/Contract Number:  
AC02-07CH11359
Resource Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2015; Journal Issue: 4; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; supersymmetry; Hadron-Hadron Scattering

Citation Formats

Khachatryan, Vardan. Search for physics beyond the standard model in events with two leptons, jets, and missing transverse momentum in pp collisions at √s = 8 TeV. United States: N. p., 2015. Web. doi:10.1007/JHEP04(2015)124.
Khachatryan, Vardan. Search for physics beyond the standard model in events with two leptons, jets, and missing transverse momentum in pp collisions at √s = 8 TeV. United States. https://doi.org/10.1007/JHEP04(2015)124
Khachatryan, Vardan. Wed . "Search for physics beyond the standard model in events with two leptons, jets, and missing transverse momentum in pp collisions at √s = 8 TeV". United States. https://doi.org/10.1007/JHEP04(2015)124. https://www.osti.gov/servlets/purl/1221270.
@article{osti_1221270,
title = {Search for physics beyond the standard model in events with two leptons, jets, and missing transverse momentum in pp collisions at √s = 8 TeV},
author = {Khachatryan, Vardan},
abstractNote = {Our search is presented for physics beyond the standard model in final states with two opposite-sign same-flavor leptons, jets, and missing transverse momentum. The data sample corresponds to an integrated luminosity of 19.4 fb-1 of proton-proton collisions at √s = 8 TeV collected with the CMS detector at the CERN LHC in 2012. The analysis focuses on searches for a kinematic edge in the invariant mass distribution of the oppositesign same-flavor lepton pair and for final states with an on-shell Z boson. Furthermore, the observations are consistent with expectations from standard model processes and are interpreted in terms of upper limits on the production of supersymmetric particles.},
doi = {10.1007/JHEP04(2015)124},
journal = {Journal of High Energy Physics (Online)},
number = 4,
volume = 2015,
place = {United States},
year = {Wed Apr 22 00:00:00 EDT 2015},
month = {Wed Apr 22 00:00:00 EDT 2015}
}

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

Citation Metrics:
Cited by: 56 works
Citation information provided by
Web of Science

Figures / Tables:

Figure 1. Figure 1.: ℓEvent diagrams for the (left) “fixed-edge”, and (right) “slepton-edge” scenarios, with $\tilde{b}$ a bottom squark, $\tilde{χ}^{0}_{2}$ the second lightest neutralino, $\tilde{χ}^{0}_{1}$ a massive neutralino LSP, and $\tilde{ℓ}$ an electron- or muon-type slepton. For the slepton-edge scenario, the $Z$ boson can be either on- or off-shell, while for themore » fixed-edge scenario it is off-shell.« less

Save / Share:

Works referenced in this record:

A Supersymmetry Primer
book, April 2010


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


The Fast Simulation of the CMS Detector at LHC
journal, December 2011


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

Review of Particle Physics
journal, August 2014


PYTHIA 6.4 physics and manual
journal, May 2006


Parton distributions for the LHC
journal, July 2009


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

Squark and Gluino Hadroproduction
journal, June 2011

  • Beenakker, Wim; Brensing, Silja; KrÄMer, Michael
  • International Journal of Modern Physics A, Vol. 26, Issue 16
  • DOI: 10.1142/S0217751X11053560

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

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


Parton distributions with LHC data
journal, February 2013


Threshold Resummation for Squark-Antisquark and Gluino-Pair Production at the LHC
journal, March 2009


Minuit - a system for function minimization and analysis of the parameter errors and correlations
journal, December 1975


Pileup subtraction using jet areas
journal, January 2008


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


Dispelling the <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:msup><mml:mi>N</mml:mi><mml:mn>3</mml:mn></mml:msup></mml:math> myth for the <mml:math altimg="si2.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:msub><mml:mi>k</mml:mi><mml:mi>t</mml:mi></mml:msub></mml:math> jet-finder
journal, September 2006


Simplified models for LHC new physics searches
journal, September 2012

  • Alves, Daniele; Arkani-Hamed, Nima; Arora, Sanjay
  • Journal of Physics G: Nuclear and Particle Physics, Vol. 39, Issue 10
  • DOI: 10.1088/0954-3899/39/10/105005

Soft-gluon resummation for squark and gluino hadroproduction
journal, December 2009


Squark and gluino production at hadron colliders
journal, May 1997


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


Identification of b-quark jets with the CMS experiment
journal, April 2013


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


Review of Particle Physics
text, January 2008


Parton distributions for the LHC
text, January 2007

  • Thorne, R. S.; Martin, A. D.; Stirling, W. J.
  • Deutsches Elektronen-Synchrotron, DESY, Hamburg
  • DOI: 10.3204/proc07-01/27

Works referencing / citing this record:

Killing the cMSSM softly
journal, February 2016


Killing the CMSSM softly
conference, March 2016

  • Bechtle, Philip; Camargo Molina, José Eliel; Desch, Klaus
  • Proceedings of The European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2015)
  • DOI: 10.22323/1.234.0139