Articulo
Measurement of the inclusive isolated prompt photon cross section in pp collisions at √s = 7 TeV with the ATLAS detector
Registro en:
issn:1550-7998
issn:1550-2368
Autor
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín Fernando
The ATLAS Collaboration
Institución
Resumen
A measurement of the cross section for the inclusive production of isolated prompt photons in pp collisions at a center-of-mass energy √s = 7 TeV is presented. The measurement covers the pseudorapidity ranges
|η<sup>γ</sup>| < 1.37 and 1.52 ≤ |η<sup>γ</sup>| < 1.81 in the transverse energy range 15 ≤ E<sup>γ</sup><sub>T</sub> < 100 GeV. The results are based on an integrated luminosity of 880 nb⁻¹, collected with the ATLAS detector at the Large Hadron Collider. Photon candidates are identified by combining information from the calorimeters and from the inner tracker. Residual background in the selected sample is estimated from data based on the observed distribution of the transverse isolation energy in a narrow cone around the photon candidate. The results are compared to predictions from next-to-leading-order perturbative QCD calculations. La lista completa de autores que integran el documento puede consultarse en el archivo. Facultad de Ciencias Exactas Instituto de Física La Plata