Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2010-09-24
Eur.Phys.J.C71:1581,2011
Physics
High Energy Physics
High Energy Physics - Phenomenology
15 pages, 9 figures
Scientific paper
10.1140/epjc/s10052-011-1581-x
In 2008 the CDF collaboration discovered a large excess of events containing two or more muons, at least one of which seemed to have been produced outside the beam pipe. We investigate whether similar "ghost" events could (and should) have been seen in already completed experiments. The CDF di-muon data can be reproduced by a simple model where a relatively light X particle undergoes four-body decay. This model predicts a large number of ghost events in Fermilab fixed-target experiments E772, E789 and E866, applying the cuts optimized for analyses of Drell-Yan events. A correct description of events with more than two muons requires a more complicated model, where two X particles are produced from a very broad resonance Y. This model can be tested in fixed-target experiments only if the cut on the angles, or rapidities, of the muons can be relaxed. Either way, the UA1 experiment at the CERN ppbar collider should have observed O(100) ghost events.
Bornhauser Nicki
Drees Manuel
No associations
LandOfFree
Hunting for CDF Multi-Muon "Ghost" Events at Collider and Fixed-Target Experiments does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Hunting for CDF Multi-Muon "Ghost" Events at Collider and Fixed-Target Experiments, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hunting for CDF Multi-Muon "Ghost" Events at Collider and Fixed-Target Experiments will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-273820