Search for new phenomena in events with high jet multiplicity and low missing transverse momentum in proton–proton collisions at s = 8 TeV

doi:10.1016/j.physletb.2017.01.073

Title: Search for new phenomena in events with high jet multiplicity and low missing transverse momentum in proton–proton collisions at $\sqrt{s} = 8 TeV$

Abstract

A dedicated search is presented for new phenomena in inclusive 8- and 10-jet final states with low missing transverse momentum, with and without identification of jets originating from b quarks. The analysis is based on data from proton–proton collisions corresponding to an integrated luminosity of 19.7fb^–1 collected with the CMS detector at the LHC at √s = 8TeV. The dominant multijet background expectations are obtained from low jet multiplicity control samples. Data agree well with the standard model background predictions, and limits are set in several benchmark models. Colorons (axigluons) with masses between 0.6 and 0.75 (up to 1.15) TeV are excluded at 95% confidence level. Similar exclusion limits for gluinos in R-parity violating supersymmetric scenarios are from 0.6 up to 1.1 TeV. Finally, these results comprise the first experimental probe of the coloron and axigluon models in multijet final states.

Publication Date:: Sat Jul 01 00:00:00 EDT 2017

Research Org.:: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Org.:: USDOE Office of Science (SC), High Energy Physics (HEP)

Contributing Org.:: The CMS Collaboration

OSTI Identifier:: 1353129

Alternate Identifier(s):: OSTI ID: 1294510

Report Number(s):: FERMILAB-PUB-16-305-CMS; CMS-EXO-13-001; CERN-EP-2016-187; arXiv:1608.01224
Journal ID: ISSN 0370-2693; S0370269317301144; PII: S0370269317301144

Grant/Contract Number:: AC02-07CH11359

Resource Type:: Published Article

Journal Name:: Physics Letters B

Additional Journal Information:: Journal Name: Physics Letters B Journal Volume: 770 Journal Issue: C; Journal ID: ISSN 0370-2693

Publisher:: Elsevier

Country of Publication:: Netherlands

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CMS; physics; exotics; jets; coloron; axigluon; RPV; susy

Citation Formats


                    Search for new phenomena in events with high jet multiplicity and low missing transverse momentum in proton–proton collisions at s = 8 TeV.  Netherlands: N. p., 2017. 
Web.  doi:10.1016/j.physletb.2017.01.073.

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                    Search for new phenomena in events with high jet multiplicity and low missing transverse momentum in proton–proton collisions at s = 8 TeV.  Netherlands.  https://doi.org/10.1016/j.physletb.2017.01.073

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                    Sat .  
"Search for new phenomena in events with high jet multiplicity and low missing transverse momentum in proton–proton collisions at s = 8 TeV".  Netherlands.  https://doi.org/10.1016/j.physletb.2017.01.073.

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@article{osti_1353129,

  title        = {Search for new phenomena in events with high jet multiplicity and low missing transverse momentum in proton–proton collisions at s = 8 TeV},

  author       = {},

  abstractNote = {A dedicated search is presented for new phenomena in inclusive 8- and 10-jet final states with low missing transverse momentum, with and without identification of jets originating from b quarks. The analysis is based on data from proton–proton collisions corresponding to an integrated luminosity of 19.7fb–1 collected with the CMS detector at the LHC at √s = 8TeV. The dominant multijet background expectations are obtained from low jet multiplicity control samples. Data agree well with the standard model background predictions, and limits are set in several benchmark models. Colorons (axigluons) with masses between 0.6 and 0.75 (up to 1.15) TeV are excluded at 95% confidence level. Similar exclusion limits for gluinos in R-parity violating supersymmetric scenarios are from 0.6 up to 1.1 TeV. Finally, these results comprise the first experimental probe of the coloron and axigluon models in multijet final states.},

  doi          = {10.1016/j.physletb.2017.01.073},

  journal      = {Physics Letters B},

  number       = C,

  volume       = 770,

  place        = {Netherlands},

  year         = {Sat Jul 01 00:00:00 EDT 2017},

  month        = {Sat Jul 01 00:00:00 EDT 2017}

}

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Fig. 1.: Top: the dominant Feynman diagram representing the s-channel pair production of color-octet vector bosons, subsequently decaying into spin-0 particles and finally to gluons. The vector bosons can be colorons C or axigluons A, while the spin-0 particles can be pseudoscalar hyperpions π^~ or scalar particles σ. This processmore »

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Works referencing / citing this record:

Search for Pair-Produced Resonances Each Decaying into at Least Four Quarks in Proton-Proton Collisions at $\sqrt{s} = 13 TeV$
journal, October 2018

Sirunyan, A. M.; Tumasyan, A.; Adam, W.
Physical Review Letters, Vol. 121, Issue 14
DOI: 10.1103/physrevlett.121.141802

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Title: Search for new phenomena in events with high jet multiplicity and low missing transverse momentum in proton–proton collisions at s = 8 TeV

Abstract

Citation Formats

Figures / Tables:

Search for Pair-Produced Resonances Each Decaying into at Least Four Quarks in Proton-Proton Collisions at s = 13 TeV journal, October 2018

Title: Search for new phenomena in events with high jet multiplicity and low missing transverse momentum in proton–proton collisions at $\sqrt{s} = 8 TeV$

Search for Pair-Produced Resonances Each Decaying into at Least Four Quarks in Proton-Proton Collisions at $\sqrt{s} = 13 TeV$
journal, October 2018