High-ETET isolated-photon plus jets production in pppp collisions at s√=s= 8 TeV with the ATLAS detector

ATLAS Collaboration

doi:10.1016/j.nuclphysb.2017.03.006

High-ETET isolated-photon plus jets production in pppp collisions at s√=s= 8 TeV with the ATLAS detector

ATLAS Collaboration

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

Abstract

The dynamics of isolated-photon plus one-, two- and three-jet production in pp collisions at a centre-of-mass energy of 8 TeV are studied with the ATLAS detector at the LHC using a data set with an integrated luminosity of 20.2 fb−1. Measurements of isolated-photon plus jets cross sections are presented as functions of the photon and jet transverse momenta. The cross sections as functions of the azimuthal angle between the photon and the jets, the azimuthal angle between the jets, the photon–jet invariant mass and the scattering angle in the photon–jet centre-of-mass system are presented. The pattern of QCD radiation around the photon and the leading jet is investigated by measuring jet production in an annular region centred on each object; enhancements are observed around the leading jet with respect to the photon in the directions towards the beams. The experimental measurements are compared to several different theoretical calculations, and overall a good description of the data is found.

Original language	English
Pages (from-to)	257-316
Number of pages	60
Journal	NUCLEAR PHYSICS B
Volume	918
Early online date	11 Mar 2017
DOIs	https://doi.org/10.1016/j.nuclphysb.2017.03.006
Publication status	Published - 11 Mar 2017

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@article{a8066bff47b84330bd8a8a91a9bdc5b2,

title = "High-ETET isolated-photon plus jets production in pppp collisions at s√=s= 8 TeV with the ATLAS detector",

abstract = "The dynamics of isolated-photon plus one-, two- and three-jet production in pp collisions at a centre-of-mass energy of 8 TeV are studied with the ATLAS detector at the LHC using a data set with an integrated luminosity of 20.2 fb−1. Measurements of isolated-photon plus jets cross sections are presented as functions of the photon and jet transverse momenta. The cross sections as functions of the azimuthal angle between the photon and the jets, the azimuthal angle between the jets, the photon{\textendash}jet invariant mass and the scattering angle in the photon{\textendash}jet centre-of-mass system are presented. The pattern of QCD radiation around the photon and the leading jet is investigated by measuring jet production in an annular region centred on each object; enhancements are observed around the leading jet with respect to the photon in the directions towards the beams. The experimental measurements are compared to several different theoretical calculations, and overall a good description of the data is found.",

author = "Sarah Barnes and Rafal Bielski and Brian Cox and Nick Dann and \{Da Via\}, Cinzia and Giulio Forcolin and Alessandra Forti and \{Iturbe Ponce\}, Julia and Xingguo Li and Frederick Loebinger and Stephen Marsden and Jiri Masik and Stephen Menary and \{Munoz Sanchez\}, Francisca and Thomas Neep and Alexander Oh and Rustem Ospanov and Joleen Pater and Yvonne Peters and Andrew Pilkington and Arnaud Pin and Darren Price and Yang Qin and John Raine and Rhys Roberts and H. Schweiger and Savanna Shaw and Lee Tomlinson and Stephen Watts and Fabian Wilk and Martin Woudstra and Terence Wyatt and \{ATLAS Collaboration\}",

year = "2017",

month = mar,

day = "11",

doi = "10.1016/j.nuclphysb.2017.03.006",

language = "English",

volume = "918",

pages = "257--316",

journal = "NUCLEAR PHYSICS B",

issn = "0550-3213",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - High-ETET isolated-photon plus jets production in pppp collisions at s√=s= 8 TeV with the ATLAS detector

AU - Barnes, Sarah

AU - Bielski, Rafal

AU - Cox, Brian

AU - Dann, Nick

AU - Da Via, Cinzia

AU - Forcolin, Giulio

AU - Forti, Alessandra

AU - Iturbe Ponce, Julia

AU - Li, Xingguo

AU - Loebinger, Frederick

AU - Marsden, Stephen

AU - Masik, Jiri

AU - Menary, Stephen

AU - Munoz Sanchez, Francisca

AU - Neep, Thomas

AU - Oh, Alexander

AU - Ospanov, Rustem

AU - Pater, Joleen

AU - Peters, Yvonne

AU - Pilkington, Andrew

AU - Pin, Arnaud

AU - Price, Darren

AU - Qin, Yang

AU - Raine, John

AU - Roberts, Rhys

AU - Schweiger, H.

AU - Shaw, Savanna

AU - Tomlinson, Lee

AU - Watts, Stephen

AU - Wilk, Fabian

AU - Woudstra, Martin

AU - Wyatt, Terence

AU - ATLAS Collaboration

PY - 2017/3/11

Y1 - 2017/3/11

N2 - The dynamics of isolated-photon plus one-, two- and three-jet production in pp collisions at a centre-of-mass energy of 8 TeV are studied with the ATLAS detector at the LHC using a data set with an integrated luminosity of 20.2 fb−1. Measurements of isolated-photon plus jets cross sections are presented as functions of the photon and jet transverse momenta. The cross sections as functions of the azimuthal angle between the photon and the jets, the azimuthal angle between the jets, the photon–jet invariant mass and the scattering angle in the photon–jet centre-of-mass system are presented. The pattern of QCD radiation around the photon and the leading jet is investigated by measuring jet production in an annular region centred on each object; enhancements are observed around the leading jet with respect to the photon in the directions towards the beams. The experimental measurements are compared to several different theoretical calculations, and overall a good description of the data is found.

AB - The dynamics of isolated-photon plus one-, two- and three-jet production in pp collisions at a centre-of-mass energy of 8 TeV are studied with the ATLAS detector at the LHC using a data set with an integrated luminosity of 20.2 fb−1. Measurements of isolated-photon plus jets cross sections are presented as functions of the photon and jet transverse momenta. The cross sections as functions of the azimuthal angle between the photon and the jets, the azimuthal angle between the jets, the photon–jet invariant mass and the scattering angle in the photon–jet centre-of-mass system are presented. The pattern of QCD radiation around the photon and the leading jet is investigated by measuring jet production in an annular region centred on each object; enhancements are observed around the leading jet with respect to the photon in the directions towards the beams. The experimental measurements are compared to several different theoretical calculations, and overall a good description of the data is found.

UR - https://www.scopus.com/pages/publications/85016126339

U2 - 10.1016/j.nuclphysb.2017.03.006

DO - 10.1016/j.nuclphysb.2017.03.006

M3 - Article

SN - 0550-3213

VL - 918

SP - 257

EP - 316

JO - NUCLEAR PHYSICS B

JF - NUCLEAR PHYSICS B

ER -

High-ETET isolated-photon plus jets production in pppp collisions at s√=s= 8 TeV with the ATLAS detector

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