6533b830fe1ef96bd1297bce

RESEARCH PRODUCT

Determining the Θ+ quantum numbers through the K+p→π+K+n reaction

Tetsuo HyodoAtsushi HosakaEulogio Oset

subject

PhysicsNuclear and High Energy PhysicsPolarization observablesFísicaΘ+ baryonPolarization (waves)Quantum numberBaryonSpin parity determinationQuantum mechanicsAngular dependenceResonance signalAtomic physicsNuclear theory

description

Abstract We study the K+p→π+K+n reaction with some kinematics suited to the production of the Θ+ resonance recently observed. We show that, independently of the quantum numbers of the Θ+, a resonance signal is always observed in the K+ forward direction. In addition, we also show how a combined consideration of the strength at the peak, and the angular dependence of polarization observables can help determine the Θ+ quantum numbers using the present reaction.

https://doi.org/10.1016/j.physletb.2003.11.026