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Journal articles
Measurements of integrated and differential cross sections for isolated photon pair production in pp collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
M. Aaboud
N. Berger
1
A.M. Burger
1
M. Delmastro
1
L. Di Ciaccio
1
S. Elles
1
K. Grevtsov
1
T. Guillemin
1
T. Hryn’ova
1
S. Jézéquel
1
O. Kivernyk
1
I. Koletsou
1
R. Lafaye
1
Jérémy Lévêque
1
N. Lorenzo Martinez
1
P. Mastrandea
1
S. Raspopov
1
E. Sauvan
1
B.H. Smart
1
S. Todorova-Nova
1
A. Vallier
1
I. Wingerter-Seez
1
E. Yatsenko
1
S. Berlendis
2
C. Camincher
2
J. Collot
2
S. Crépé-Renaudin
2
P.A. Delsart
2
C. Gabaldon
2
M.H. Genest
2
J.Y. Hostachy
2
F. Ledroit-Guillon
2
A. Lleres
2
A. Lucotte
2
F. Malek
2
T. Meideck
2
E. Petit
2
N.P. Readioff
2
J. Stark
2
B. Trocmé
2
G. Aad
3
M. Alstaty
3
M. Barbero
3
A. Calandri
3
T.P. Calvet
3
Y. Coadou
3
K. de Vasconcelos Corga
3
C. Diaconu
3
F. Djama
3
R. El Kosseifi
3
V. Ellajosyula
3
L. Feligioni
3
A. Hadef
3
G.D. Hallewell
3
F. Hubaut
3
S.J. Kahn
3
E. B. F. G. Knoops
3
R. Kukla
3
E. Le Guirriec
3
K. Liu
3
D. Madaffari
3
E. Monnier
3
S. Muanza
3
E. Nagy
3
P. Pralavorio
3
Y. Rodina
3
A. Rozanov
3
M. Talby
3
T. Theveneaux-Pelzer
3
R.E. Ticse Torres
3
S. Tisserant
3
J. Toth
4, 3
F. Touchard
3
L. Vacavant
3
R. Wolff
3
T. Hryn’ova 1
Author IdHAL : thrynova ORCID : https://orcid.org/0000-0001-5914-8614
S. Jézéquel 1
Author
O. Kivernyk 1
Author
I. Koletsou 1
Author
C. Gabaldon 2
Author
M.H. Genest 2
Author IdHAL : marie-helene-genest ORCID : https://orcid.org/0000-0002-4098-2024
J.Y. Hostachy 2
Author
F. Ledroit-Guillon 2
Author
A. Lleres 2
Author
A. Lucotte 2
Author
F. Malek 2
Author IdHAL : fairouz-malek ResearcherId : http://www.researcherid.com/rid/E-4410-2018 IdRef : https://www.idref.fr/084171219 ORCID : https://orcid.org/0000-0002-0948-5775
T. Meideck 2
Author
1
LAPP - Laboratoire d'Annecy de Physique des Particules (9 Chemin de Bellevue - BP 110 - 74941 Annecy-le-Vieux CEDEX - France - France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- USMB [Université de Savoie] [Université de Chambéry] - Université Savoie Mont Blanc (27, rue Marcoz - 73000 Chambéry - France)
- CNRS - Centre National de la Recherche Scientifique : UMR5814 (France)
2
LPSC - Laboratoire de Physique Subatomique et de Cosmologie (53 avenue des Martyrs - 38026 Grenoble Cedex - France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- Grenoble INP [2007-2019] - Institut polytechnique de Grenoble - Grenoble Institute of Technology [2007-2019] (46 avenue Félix Viallet 38031 Grenoble Cedex 1 - France)
- UGA [2016-2019] - Université Grenoble Alpes [2016-2019] (CS 40700 - 38058 Grenoble cedex - France)
- CNRS - Centre National de la Recherche Scientifique : UMR5821 (France)
3
CPPM - Centre de Physique des Particules de Marseille (163, avenue de Luminy - Case 902 - 13288 Marseille cedex 09 - France)
- AMU - Aix Marseille Université : UMR7346 (Aix-Marseille Université Jardins du Pharo 58 Boulevard Charles Livon 13284 Marseille cedex 7 - France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- CNRS - Centre National de la Recherche Scientifique : UMR7346 (France)
4
Wigner Research Centre for Physics [Budapest] (1121 Budapest
Konkoly-Thege Miklós út 29-33. - Hungary)
- MTA - Hungarian Academy of Sciences (Széchenyi István sqr. 9, 1051 Budapest - Hungary)
Abstract : A measurement of the production cross section for two isolated photons in proton--proton collisions at a center-of-mass energy of $\sqrt{s}=8$ TeV is presented. The results are based on an integrated luminosity of 20.2 fb$^{-1}$ recorded by the ATLAS detector at the Large Hadron Collider. The measurement considers photons with pseudorapidities satisfying $|\eta^{\gamma}|<1.37$ or ${1.56<|\eta^{\gamma}|<2.37}$ and transverse energies of respectively $E_{\mathrm{T,1}}^{\gamma}>40$ GeV and $E_{\mathrm{T,2}}^{\gamma}>30$ GeV for the two leading photons ordered in transverse energy produced in the interaction.The background due to hadronic jets and electrons is subtracted using data-driven techniques. The fiducial cross sections are corrected for detector effects and measured differentially as a function of six kinematic observables. The measured cross section integrated within the fiducial volume is $16.8 \pm 0.8$ pb. The data are compared to fixed-order QCD calculations at next-to-leading-order and next-to-next-to-leading-order accuracy as well as next-to-leading-order computations including resummation of initial-state gluon radiation at next-to-next-to-leading logarithm or matched to a parton shower, with relative uncertainties varying from 5% to 20%.
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Journal articles
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http://hal.in2p3.fr/in2p3-01507438
Contributor : Claudine Bombar <>
Submitted on : Thursday, April 13, 2017 - 10:47:04 AM
Last modification on : Thursday, August 6, 2020 - 3:09:31 AM
Contributor : Claudine Bombar <>
Submitted on : Thursday, April 13, 2017 - 10:47:04 AM
Last modification on : Thursday, August 6, 2020 - 3:09:31 AM
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Identifiers
- HAL Id : in2p3-01507438, version 1
- ARXIV : 1704.03839
- DOI : 10.1103/PhysRevD.95.112005
Citation
M. Aaboud, N. Berger, A.M. Burger, M. Delmastro, L. Di Ciaccio, et al.. Measurements of integrated and differential cross sections for isolated photon pair production in pp collisions at $\sqrt{s}=8$ TeV with the ATLAS detector. Physical Review D, American Physical Society, 2017, 95, pp.112005. ⟨10.1103/PhysRevD.95.112005⟩. ⟨in2p3-01507438⟩
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