Plots from Rivet analyses
- Isolated $\gamma$ + jet cross-sections, differential in pT($\gamma$) for various $y$ bins (D0_2008_S7719523)
- Inclusive isolated photon cross-section, differential in pT(gamma) (D0_2006_S6438750)
- Measurement of the inclusive isolated prompt photon cross-section (CDF_2009_S8436959)
Isolated $\gamma$ + jet cross-sections, differential in pT($\gamma$) for various $y$ bins (D0_2008_S7719523)
Spires | Phys.Lett.B666:435-445,2008 | doi:10.1016/j.physletb.2008.06.076 | arXiv:0804.1107v2 [hep-ex]
The process $p \bar{p}$ -> photon + jet + X as studied by the D0 detector at the Fermilab Tevatron collider at center-of-mass energy sqrt(s) = 1.96 TeV. Photons are reconstructed in the central rapidity region $|y_\gamma| < 1.0$ with transverse momenta in the range 30--400 GeV, while jets are reconstructed in either the central $|y_\text{jet}| < 0.8$ or forward $1.5 < |y_\text{jet}| < 2.5$ rapidity intervals with $pT^\text{jet} > 15~\text{GeV}$. The differential cross section $\mathrm{d}^3 \sigma / \mathrm{d}{pT^\gamma} \mathrm{d}{y_\gamma} \mathrm{d}{y_\text{jet}}$ is measured as a function of $pT^\gamma$ in four regions, differing by the relative orientations of the photon and the jet. MC predictions have trouble with simultaneously describing the measured normalization and $pT^\gamma$ dependence of the cross section in any of the four measured regions.
Inclusive isolated photon cross-section, differential in pT(gamma) (D0_2006_S6438750)
Spires | Phys.Lett.B639:151-158,2006, Erratum-ibid.B658:285-289,2008 | doi:10.1016/j.physletb.2006.04.048 | arXiv:hep-ex/0511054 (plus erratum)
Measurement of differential cross section for inclusive production of isolated photons in p pbar collisions at sqrt(s) = 1.96 TeV with the D\O detector at the Fermilab Tevatron collider. The photons span transverse momenta 23--300 GeV and have pseudorapidity $|\eta| < 0.9$. Isolated direct photons are probes of pQCD via the annihilation ($q \bar{q} -> \gamma g$) and quark-gluon Compton scattering ($q g -> \gamma q$) processes, the latter of which is also sensitive to the gluon PDF. The initial state radiation / resummation formalisms are sensitive to the resulting photon pT spectrum
Measurement of the inclusive isolated prompt photon cross-section (CDF_2009_S8436959)
Spires | arXiv:0910.3623 [hep-ex]
A measurement of the cross section for the inclusive production of isolated photons. The measurement covers the pseudorapidity region $|\eta^\gamma|<1.0$ and the transverse energy range $E_T^\gamma>30$~GeV and is based on 2.5~fb$^{-1}$ of integrated luminosity. The cross section is measured differential in $E_\perp(\gamma)$.
