Photon Total Cross-sections

We discuss present predictions for the total $\gamma \gamma$ and $\gamma p$ cross-sections, highlighting why predictions differ. We present results from the Eikonal Minijet Model and improved predictions based on soft gluon resummation.Comment: 7 pages, 10 figures, LaTeX, requires espcrc2.sty, Talk presented by G. Pancheri at PHOTON-2003, International Meeting on Structure and Interactions of the Photon, Frascati, Italy, April 7-11, 200

Upsilon Production In p-p Collisions at LHC

This is a continuation of recent studies of $\Upsilon(nS)$ production at the LHC in p-p collisions. Our previous studies were for 2.76 TeV, while the present predictions are for 7.0 TeV collisions.Comment: 2 pages, no figure

The Landshoff-Nachtmann Pomeron on the Lattice

We investigate the Landshoff-Nachtmann two-gluon-exchange model of the Pomeron using gluon propagators computed in the Landau gauge within quenched lattice QCD calculations. We first determine an effective gluon-quark coupling by constraining the Pomeron-quark coupling to its phenomenological value \beta_0 = 2\, \gev^{-1}. We then provide predictions for a variety of diffractive processes. As the propagators have been evaluated entirely from QCD first principles (although in the quenched approximation), our results provide a consistency check of the Landshoff-Nachtmann model. We address the issue of the possible gauge-dependence of our results, which will be the object of a future study.Comment: uuencoded, compressed tar file, 13 pages latex, 4 Postscript figures, requires epsf.st

Never Forgets: Traumatic Trace Within Public Space

This paper will interrogate the ways in which ephemera from events affects the human and non- human environment and how the absence, manipulation or presence of traumatic trace weaves itself into the atmosphere of the past, present and future. It will look at space and the ways that trace manifests itself in hierarchal spaces and Lebbeus Woods’ concept of heterarchial spaces, which are organic and/or horizontally organized. A thread throughout is the question that if trace from trauma can exist in the visual field, i.e. the physical or digital landscape, in a way that maintains a discourse without perpetuating oppression. Works and spaces discussed to under- stand the implications of erasure, manipulation or spontaneous subjectivity span are pieces of art, museums, memorials and even an augmented reality game. Richard Serra’s Tilted Arc will be framed using Michel Foucault’s theories of social control and space from Discipline and Punish. Tilted Arc was erased, permanently eradicated from Lower Manhattan’s Federal Plaza in the dead of night after a contentious court battle. Mark Hansen’s work surrounding the future fee- ding of information will support a critique of traces that are problematized through institutions or the state, specifically looking at the Killing Fields Memorial Museum and the Tuol Sleng Geno- cide Museum in Cambodia. This paper will culminate with an inquiry surrounding agentic trace and how that can create space for individual subjectivity, such as with the Vietnam Veterans Memorial, Pokemon Go’s memorial to Tamir Rice and Ghost Bikes, using Michael Foucault and Maurizio Lazaratto’s ideas of parrhesia, or spontaneous subjectivity. This is an investigation of loss, in terms of who has the privilege to be remembered and how we can find spaces to leave trace so we, she, he, they and I never forgets

Fermi motion and quark off-shellness in elastic vector- meson production

Peer reviewe