HERA-g, a New Experiment for Glueball, Hybrid and Odderon Studies at DESY

• Published in: Hadron Spectroscopy Vol. 717; p. 387
• Main Authors: Bruschi, M, Schlein, P
• Format: Journal Article
• Language: English
• Published: 01.01.2004
• ISBN: 9780735401976; 0735401977
• ISSN: 0094-243X
• DOI: 10.1063/1.1799736

We propose a new, but relatively short, experimental program at HERA to use the existing HERA-B detector to run in the 920 GeV proton beam to study the production and decay properties of centrally-produced glueballs and hybrid mesons (the latter produced in P omeron-R eggeon collisions). A search for dderon-Exchange will also be carried out by measuring isolated centrally-produced I=0, C=-1 states such as 0. A Level-1 trigger based on rapidity-gap vetoes at small and large angles outside the spectrometer aperture will efficiently select these events. We show the properties of such events extracted offline from > 70*106 triggered events, corresponding to about 5 minutes of data taking with such a rapidity-gap trigger. For example, a 100 hour data-taking run in the manner described herein will already yield a factor of 1000 times more data than displayed in this Proposal. Such a data sample would allow fundamental contributions to be made to a number of important fields.The 100-hour run corresponds to about a factor 10 increase on WA-102 experiment data, for many channels.Physicists and Institutes interested in participating in this project are asked to contact at the earliest possible time the corresponding authors.