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Measurement of the differential cross sections for isolated direct photon pair production in pp collisions at

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Measurement of the differential cross sections for isolated direct photon pair production in pp collisions at. / Bertram, Iain; Borissov, Guennadi; Fox, Harald; Ratoff, Peter; Ross, Anthony; Williams, Mark; D0 Collaboration, The.

In: Physics Letters B, Vol. 725, No. 1-3, 09.08.2013, p. 6-14.

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@article{97a23aa39e42491191ec0283f21ee273,
title = "Measurement of the differential cross sections for isolated direct photon pair production in pp collisions at",
abstract = "We present measurements of direct photon pair production cross sections using 8.5 fb−1 of data collected with the D0 detector at the Fermilab Tevatron collider. The results are presented as differential distributions of the photon pair invariant mass dσ/dMγγ, pair transverse momentum , azimuthal angle between the photons dσ/dΔϕγγ, and polar scattering angle in the Collins–Soper frame . Measurements are performed for isolated photons with transverse momenta for the leading (next-to-leading) photon in pT, pseudorapidities |ηγ|<0.9, and a separation in η–ϕ space ΔRγγ>0.4. We present comparisons with the predictions from Monte Carlo event generators diphox and resbos implementing QCD calculations at next-to-leading order, 2γnnlo at next-to-next-to-leading order, and sherpa using matrix elements with higher-order real emissions matched to parton shower.",
author = "Iain Bertram and Guennadi Borissov and Harald Fox and Peter Ratoff and Anthony Ross and Mark Williams and {D0 Collaboration}, The",
year = "2013",
month = aug,
day = "9",
doi = "10.1016/j.physletb.2013.06.036",
language = "English",
volume = "725",
pages = "6--14",
journal = "Physics Letters B",
issn = "0370-2693",
publisher = "ELSEVIER SCIENCE BV",
number = "1-3",

}

RIS

TY - JOUR

T1 - Measurement of the differential cross sections for isolated direct photon pair production in pp collisions at

AU - Bertram, Iain

AU - Borissov, Guennadi

AU - Fox, Harald

AU - Ratoff, Peter

AU - Ross, Anthony

AU - Williams, Mark

AU - D0 Collaboration, The

PY - 2013/8/9

Y1 - 2013/8/9

N2 - We present measurements of direct photon pair production cross sections using 8.5 fb−1 of data collected with the D0 detector at the Fermilab Tevatron collider. The results are presented as differential distributions of the photon pair invariant mass dσ/dMγγ, pair transverse momentum , azimuthal angle between the photons dσ/dΔϕγγ, and polar scattering angle in the Collins–Soper frame . Measurements are performed for isolated photons with transverse momenta for the leading (next-to-leading) photon in pT, pseudorapidities |ηγ|<0.9, and a separation in η–ϕ space ΔRγγ>0.4. We present comparisons with the predictions from Monte Carlo event generators diphox and resbos implementing QCD calculations at next-to-leading order, 2γnnlo at next-to-next-to-leading order, and sherpa using matrix elements with higher-order real emissions matched to parton shower.

AB - We present measurements of direct photon pair production cross sections using 8.5 fb−1 of data collected with the D0 detector at the Fermilab Tevatron collider. The results are presented as differential distributions of the photon pair invariant mass dσ/dMγγ, pair transverse momentum , azimuthal angle between the photons dσ/dΔϕγγ, and polar scattering angle in the Collins–Soper frame . Measurements are performed for isolated photons with transverse momenta for the leading (next-to-leading) photon in pT, pseudorapidities |ηγ|<0.9, and a separation in η–ϕ space ΔRγγ>0.4. We present comparisons with the predictions from Monte Carlo event generators diphox and resbos implementing QCD calculations at next-to-leading order, 2γnnlo at next-to-next-to-leading order, and sherpa using matrix elements with higher-order real emissions matched to parton shower.

U2 - 10.1016/j.physletb.2013.06.036

DO - 10.1016/j.physletb.2013.06.036

M3 - Journal article

VL - 725

SP - 6

EP - 14

JO - Physics Letters B

JF - Physics Letters B

SN - 0370-2693

IS - 1-3

ER -