2006/12/12 by M. Amarian, Moskov Amarian, Dmitri Diakonov +1 · 2 citations
Physics and Astronomy · #Algorithm #Baryon #Channel (broadcasting) #Computer science #Hadron #High-Energy Particle Collisions Research #Interference (communication) #Particle physics #Particle physics theoretical and experimental studies #Physics #Production (economics) #Quantum Chromodynamics and Particle Interactions #Resonance (particle physics) #Telecommunications #hep-ex #hep-ph #nucl-ex
paper · pdf · doi:10.1103/physrevd.78.074003
published as Phys.Rev.D78:074003,2008 · 9 pages
arxiv created 2006/12/12 · openalex publication_date 2008/10/02 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Since all couplings of the exotic \ensuremathΘ+ baryon to normal hadrons seem to be small it is hard to reveal it in standard resonance searching. We suggest looking for the \ensuremathΘ+ production in interference with a known resonance yielding the same final state but having a high production rate. The interference production cross section is linear in the \ensuremathΘ+ couplings whereas the noninterference cross section is quadratic. That gives an obvious gain if the couplings are small. Moreover, employing the peculiar oscillating nature of the interference processes one can reduce the parasitic background and determine the \ensuremathΘ+ resonance parameters.