6533b838fe1ef96bd12a477f
RESEARCH PRODUCT
Measurement of OZI rule violation and spin alignment inϕandωproduction at COMPASS
Johannes Bernhardsubject
PhysicsParticle physicsLarge Hadron ColliderPhysicsQC1-999High Energy Physics::PhenomenologyNuclear physicsMomentumPomeronOZI ruleCompassHadron spectroscopyHigh Energy Physics::ExperimentVector mesonSpin-½description
The COMPASS collaboration at CERN dedicated the 2008 and 2009 run time to hadron spectroscopy measurements with emphasis on the mesonic sector. At 190 GeV/c beam momentum, diffractive and double-Reggeon/Pomeron production mechanisms contribute. Studying vector meson production allows to explore this relatively unknown transition domain. We present results on the ratio of production yields for p p → (1020) p p ϕ and p p → p p ω (782) and its xF dependence where we find an OZI rule violation in the order of a factor of 3. In addition, the spin alignment of ω and ϕ as a function of xF is investigated.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-12-01 | EPJ Web of Conferences |