… examine carefully the contributions from photon bremsstrahlung subprocesses. We … two
photons at large PT and on the ratio of double to single photon production for pion-proton, proton…

… the effect of photons in hard processes. We compare the two different approaches used
for … 2 we show both the original MRST2004(QED) photon distribution and a similar result …

… of the Higgs boson decaying into two photons and the line that bisects the acute angle
between the colliding protons. In the Collins-Soper frame, the two-Higgs-boson candidates are …

… of the physics objects: jets, leptons, photons and diphotons (excluding mγγ), jet and lepton …
output of the photon ID BDT for both photons. The pT of the individual photons and diphotons …

… light vector mesons are included). In this case the interaction “between photons” happens
when both photons are in … The latter mechanism has very similar kinematics as the two-gluon …

… radius of the proton, γ / r p , where r p represents the proton radius. Let us note that … two
photon center-of-mass energy squared is W γ γ 2 = 4 ω 1 ω 2 , and the rapidity of the two photons …

… Diagrams representing the multiperipheral two-photon processes studied in this paper: (a)
elastic process, (b) single-dissociative and (c) double-dissociative process. In all three cases …

… vector sum of the two photon k⊥. We assume that the angle between the two photons is
completely random, neglecting the possibly different cross sections for photons with parallel and …

… We have also measured the photon spectra produced in p-Be and p-A1 collisions. 2. - … To
avoid the detection of both photons from a ~, the acceptance of the Cerenkov was .restricted by …

… Figure 1: Schematic diagrams for the exclusive and semi-exclusive two-photon production
of muon pairs in pp collisions for the elastic (left), single dissociative (center), and double …