High Energy Physics With Hydrogen Bubble Chambers

Recent experience with liquid hydrogen bubble chambers of 25 and 40 cm dia. in high-energy physics experiments is discussed. Experiments described are: interactions of K− mesons with prctons, iateractions of antiprotons with protons, catalysis of nuclear fusion reactions by muons, and production and decay of hyperons from negative pions. (W.D.M.).

Written by one of the detector developers for the International Linear Collider, this is the first textbook for graduate students dedicated to the complexities and the simplicities of high energy collider detectors. It is intended as a specialized reference for a standard course in particle physics, and as a principal text for a special topics course focused on large collider experiments. Equally useful as a general guide for physicists designing big detectors.

In the past year the Bubble Chamber Group has been involved in a wide range of activities in experimental high energy physics. Beam momenta varying from 2.9 to 300 GeV/c; bubble chambers including the FNAL 30-inch, BNL 80-inch, ANL 12-foot and FNAL 15-foot; targets which include hydrogen, deuterium, hydrogen with downstream plate, and deuterium with downstream spark chambers; beam particles including K−, anti p and p--one is still waiting for neutrinos--were used. A search was made for exotic particles and charmed particles, continued to study strange baryons and mesons, probed the dimensions of the ''fireball, '' and studied multiplicities and correlations in high energy collisions. The following progress in each of the activities which have taken place is summarized. A list of publications is included.