Identification of K+-mesons from subthreshold pA collisions with ANKE at COSY-Jülich

Excited Hyperons Produced in Proton-Proton Collisions With Anke at Cosy

“…The ANKE detection system, comprising range telescopes, scintillation counters and multi-wire proportional chambers, simultaneously registers both positively and negatively charged particles and measures their momenta. 14 The ANKE telescopes are used to register positively charged particles. They discriminate pions, kaons and protons with the same momenta due to their different energy losses.…”

φ-meson production and the in-medium φ-width in proton-nucleus collisions

“…2 and Refs. [19,20]). The coincident K − was subsequently identified from the time-of-flight difference between the stop counters in the negative and positive detector systems.…”

a0+(980)-Resonance Production inpp→dK+Kleber1, Büscher2, Chernyshev3 et al. 2003Phys. Rev. Lett.315480View full textAdd to dashboardCite

“…Details of the procedure can be found in Ref. [18]. For our measurements, only some of the telescopes were used, covering the lower momentum range (p K + =(390−625) MeV/c) of the a + 0 decay K + mesons.…”

“…For our measurements, only some of the telescopes were used, covering the lower momentum range (p K + =(390−625) MeV/c) of the a + 0 decay K + mesons. Two multi-wire proportional chambers (MWPCs) positioned in front of the telescopes allow to deduce the ejectile momenta and to suppress scattered background [7,18]. Coincident fast particles and elastically scattered protons are detected in the ANKE forward-detection (FD) system consisting of two layers of scintillation counters for TOF and ∆E measurements as well as three MWPCs, each with two sensitive planes, for momentum reconstruction and background suppression [7,19].…”