Search for production of resonant states in the photon-jet mass distribution using pp collisions at sqrt(s) = 7 TeV collected by the ATLAS detector

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

doi:10.1103/PhysRevLett.108.211802

Search for production of resonant states in the photon-jet mass distribution using pp collisions at sqrt(s) = 7 TeV collected by the ATLAS detector

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

School of Physics and Astronomy

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

Abstract

This Letter describes a model-independent search for production of new resonant states in photon-jet events in 2.11 fb^-1 of proton-proton collisions at sqrt(s) = 7 TeV. We compare the photon-jet mass distribution to a data-driven background estimate and find consistency with the background hypothesis. Given the lack of evidence for a signal, we set 95% CL limits on generic Gaussian-shape signals and on a benchmark excited-quark (q*) model, excluding 2 TeV Gaussian resonances with cross section times branching ratio times acceptance times efficiency near 5 fb and excluding q* masses below 2.46 TeV, respectively.

Original language	English
Pages (from-to)	211802
Number of pages	211802
Journal	Physical Review Letters
Volume	108
DOIs	https://doi.org/10.1103/PhysRevLett.108.211802
Publication status	Published - 2012

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10.1103/PhysRevLett.108.211802

http://arxiv.org/abs/1112.3580

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title = "Search for production of resonant states in the photon-jet mass distribution using pp collisions at sqrt(s) = 7 TeV collected by the ATLAS detector",

abstract = "This Letter describes a model-independent search for production of new resonant states in photon-jet events in 2.11 fb\textasciicircum{}-1 of proton-proton collisions at sqrt(s) = 7 TeV. We compare the photon-jet mass distribution to a data-driven background estimate and find consistency with the background hypothesis. Given the lack of evidence for a signal, we set 95\% CL limits on generic Gaussian-shape signals and on a benchmark excited-quark (q*) model, excluding 2 TeV Gaussian resonances with cross section times branching ratio times acceptance times efficiency near 5 fb and excluding q* masses below 2.46 TeV, respectively.",

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

note = "CERN-PH-EP-2011-203",

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T1 - Search for production of resonant states in the photon-jet mass distribution using pp collisions at sqrt(s) = 7 TeV collected by the ATLAS detector

AU - ATLAS Collaboration

AU - Bhimji, Wahid

AU - Clark, Philip

AU - Harrington, Robert

AU - Martin, Victoria

N1 - CERN-PH-EP-2011-203

PY - 2012

Y1 - 2012

N2 - This Letter describes a model-independent search for production of new resonant states in photon-jet events in 2.11 fb^-1 of proton-proton collisions at sqrt(s) = 7 TeV. We compare the photon-jet mass distribution to a data-driven background estimate and find consistency with the background hypothesis. Given the lack of evidence for a signal, we set 95% CL limits on generic Gaussian-shape signals and on a benchmark excited-quark (q*) model, excluding 2 TeV Gaussian resonances with cross section times branching ratio times acceptance times efficiency near 5 fb and excluding q* masses below 2.46 TeV, respectively.

AB - This Letter describes a model-independent search for production of new resonant states in photon-jet events in 2.11 fb^-1 of proton-proton collisions at sqrt(s) = 7 TeV. We compare the photon-jet mass distribution to a data-driven background estimate and find consistency with the background hypothesis. Given the lack of evidence for a signal, we set 95% CL limits on generic Gaussian-shape signals and on a benchmark excited-quark (q*) model, excluding 2 TeV Gaussian resonances with cross section times branching ratio times acceptance times efficiency near 5 fb and excluding q* masses below 2.46 TeV, respectively.

U2 - 10.1103/PhysRevLett.108.211802

DO - 10.1103/PhysRevLett.108.211802

M3 - Article

SN - 0031-9007

VL - 108

SP - 211802

JO - Physical Review Letters

JF - Physical Review Letters

ER -

Search for production of resonant states in the photon-jet mass distribution using pp collisions at sqrt(s) = 7 TeV collected by the ATLAS detector

Abstract

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