Search for New Physics in the Dijet Mass Distribution using 1 fb^-1 of pp Collision Data at sqrt(s) = 7 TeV collected by the ATLAS Detector

ATLAS Collaboration; Wahid Bhimji; Andy Buckley; Philip Clark; Robert Harrington; Victoria Martin

doi:10.1016/j.physletb.2012.01.035

Search for New Physics in the Dijet Mass Distribution using 1 fb^-1 of pp Collision Data at sqrt(s) = 7 TeV collected by the ATLAS Detector

ATLAS Collaboration, Wahid Bhimji, Andy Buckley, Philip Clark, Robert Harrington, Victoria Martin

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

Invariant mass distributions of jet pairs (dijets) produced in LHC proton-proton collisions at a centre-of-mass energy sqrt(s)=7 TeV have been studied using a data set corresponding to an integrated luminosity of 1.0 fb^-1 recorded in 2011 by ATLAS. Dijet masses up to ~4 TeV are observed in the data, and no evidence of resonance production over background is found. Limits are set at 95% CL for several new physics hypotheses: excited quarks are excluded for masses below 2.99 TeV, axigluons are excluded for masses below 3.32 TeV, and colour octet scalar resonances are excluded for masses below 1.92 TeV.

Original language	English
Pages (from-to)	37-54
Number of pages	18
Journal	Physics Letters B
Volume	B708
DOIs	https://doi.org/10.1016/j.physletb.2012.01.035
Publication status	Published - 2012

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hep-ex

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10.1016/j.physletb.2012.01.035

http://arxiv.org/abs/1108.6311

Cite this

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title = "Search for New Physics in the Dijet Mass Distribution using 1 fb\textasciicircum{}-1 of pp Collision Data at sqrt(s) = 7 TeV collected by the ATLAS Detector",

abstract = "Invariant mass distributions of jet pairs (dijets) produced in LHC proton-proton collisions at a centre-of-mass energy sqrt(s)=7 TeV have been studied using a data set corresponding to an integrated luminosity of 1.0 fb\textasciicircum{}-1 recorded in 2011 by ATLAS. Dijet masses up to \textasciitilde{}4 TeV are observed in the data, and no evidence of resonance production over background is found. Limits are set at 95\% CL for several new physics hypotheses: excited quarks are excluded for masses below 2.99 TeV, axigluons are excluded for masses below 3.32 TeV, and colour octet scalar resonances are excluded for masses below 1.92 TeV.",

keywords = "hep-ex",

author = "\{ATLAS Collaboration\} and Wahid Bhimji and Andy Buckley and Philip Clark and Robert Harrington and Victoria Martin",

note = "CERN-PH-EP-2011-127",

year = "2012",

doi = "10.1016/j.physletb.2012.01.035",

language = "English",

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T1 - Search for New Physics in the Dijet Mass Distribution using 1 fb^-1 of pp Collision Data at sqrt(s) = 7 TeV collected by the ATLAS Detector

AU - ATLAS Collaboration

AU - Bhimji, Wahid

AU - Buckley, Andy

AU - Clark, Philip

AU - Harrington, Robert

AU - Martin, Victoria

N1 - CERN-PH-EP-2011-127

PY - 2012

Y1 - 2012

N2 - Invariant mass distributions of jet pairs (dijets) produced in LHC proton-proton collisions at a centre-of-mass energy sqrt(s)=7 TeV have been studied using a data set corresponding to an integrated luminosity of 1.0 fb^-1 recorded in 2011 by ATLAS. Dijet masses up to ~4 TeV are observed in the data, and no evidence of resonance production over background is found. Limits are set at 95% CL for several new physics hypotheses: excited quarks are excluded for masses below 2.99 TeV, axigluons are excluded for masses below 3.32 TeV, and colour octet scalar resonances are excluded for masses below 1.92 TeV.

AB - Invariant mass distributions of jet pairs (dijets) produced in LHC proton-proton collisions at a centre-of-mass energy sqrt(s)=7 TeV have been studied using a data set corresponding to an integrated luminosity of 1.0 fb^-1 recorded in 2011 by ATLAS. Dijet masses up to ~4 TeV are observed in the data, and no evidence of resonance production over background is found. Limits are set at 95% CL for several new physics hypotheses: excited quarks are excluded for masses below 2.99 TeV, axigluons are excluded for masses below 3.32 TeV, and colour octet scalar resonances are excluded for masses below 1.92 TeV.

KW - hep-ex

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DO - 10.1016/j.physletb.2012.01.035

M3 - Article

SN - 1873-2445

VL - B708

SP - 37

EP - 54

JO - Physics Letters B

JF - Physics Letters B

ER -

Search for New Physics in the Dijet Mass Distribution using 1 fb^-1 of pp Collision Data at sqrt(s) = 7 TeV collected by the ATLAS Detector

Abstract

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