Successful cancer patient survival and local tumor control from hadron radiotherapy warrant a discussion of potential secondary late effects from the radiation. The study of late-appearing clinical effects from particle beams of protons, carbon, or heavier ions is a relatively new field with few data. However, new clinical information is available from pioneer hadron radiotherapy programs in th...

We summarize the activity of the Very Large Hadron Collider Physics and Detector subgroup during Snowmass 96. ABSTRACT We summarize the activity of the Very Large Hadron Collider Physics and Detector subgroup during Snowmass 96. Members of the group:

This brief review of hard diffraction is focussed on the theory of the diffractive structure function F 2 . Some aspects of diffractive vector meson production and of diffractive processes in hadron-hadron collisions are also discussed.

It is proposed, that “the colorless objects” which manifest themselves in largerapidity-gap events are color-singlet gluon-clusters due to self-organized criticality, and that optical-geometrical concepts and methods are useful in examing the spacetime properties of such objects. A simple analytical expression for the t-dependence of the inelastic single diffractive cross section dσ/dt (t is th...

High-pT hadron-hadron correlations have been measured with the PHENIX experiment in Cu + Cu and p + p collisions at √ sNN = 200 GeV. A comparison of the jet widths and yields between the two colliding systems allows us to study the medium effect on jets. We also present a first measurement of direct photon-hadron correlations in Au + Au and p + p collisions. We find that the near-side yields ar...