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On the LEP Measurements of the Rising Photon-Photon Total Cross Section
M. M. Block, E. M. Gregores, F. Halzen +1
Using vector meson dominance we calculate the total cross section from data on , and total cross sections. Our result agrees with recent high energy measure…
The Associated Production of Weak Bosons and Jets by Multiple Parton Interactions
O. Eboli, F. Halzen, K. Mizukoshi
The sources of -jet events in hadron collisions are higher-order QCD processes, but also multiple-parton interactions. A subprocess producing a -jet final state, foll…
The Highest Energy Cosmic Rays and Particle Physics
G. Burdman, F. Halzen, R. Gandhi
It has been argued that the observations of cosmic particles with energies in excess of TeV represent a puzzle. Its solution requires new astrophysics or new particle physic…
Are Two Gluons the QCD Pomeron?
O. J. P. Eboli, E. Gregores, F. Halzen
Collider experiments have recently measured the production cross section of hard jets separated by a rapidity gap as a function of transverse momentum and gap size. We show that th…
The AMANDA Neutrino Telescope: Science Prospects and Performance at First Light
Francis Halzen
We update the science prospects for the recently completed AMANDA South Pole neutrino detector. With an effective telescope area of order 10^4 m^2 and a threshold of ~50 GeV, it re…
The Search for the Source of the Highest Energy Cosmic Rays
F. Halzen
Active galaxies and gamma ray bursts are the sources of the highest energy photons detected by astronomical telescopes. We speculate that they may be the sources of the highest ene…
Very High Energy Phenomena in the Universe: Summary Talk of Moriond 97
F. Halzen
This is the summary of a week of very informative presentations on new ways to probe the Universe using gravitational detectors, space and ground based gamma ray telescopes, EeV ai…
Neutrino Fluxes from Active Galaxies: a Model-Independent Analysis
F. Halzen, E. Zas
There are tantalizing hints that jets, powered by supermassive black holes at the center of active galaxies, are true cosmic proton accelerators. They produce photons of TeV energy…
Status of Neutrino Astronomy: The Quest for Kilometer-Scale Instruments
F. Halzen
This is a (very) personal attempt to summarize the status of neutrino astronomy: its scientific motivations, our understanding of natural water and ice as particle detectors and, f…
Electroweak Interactions: Loops for Cyclists
F. Halzen
We review the ideas of renormalizable field theories and the Standard Model at the Born (neutral currents, the Higgs mechanism and unification) and quantum level. We subsequently i…