Λ and K s 0 production in pC collisions at 10 GeV/c

0 S resonance production in ep collisions at HERA ZEUS

Inclusive K SK 0 S production in ep collisions at HERA was studied with the ZEUS detector using an integrated luminosity of 0.5 fb. Enhancements in the mass spectrum were observed and are attributed to the production of f2(1270)/a 0 2(1320), f ′ 2(1525) and f0(1710). Masses and widths were obtained using a fit which takes into account theoretical predictions based on SU(3) symmetry arguments, a...

Observation of Λ + c → Λ 0 K + , Λ + c → Σ 0 K + and Λ + c → Σ + K + π − decays

We present measurements of the Cabibbo-suppressed decays Λc → Λ 0K+ and Λc → Σ 0K+ (both first observations), Λc → Σ +K+π− (seen with large statistics for the first time), Λc → pK +K− and Λc → pφ (measured with improved accuracy). Improved branching ratio measurements for the decays Λc → Σ +K+K− and Λc → Σ +φ, which are attributed to W-exchange diagrams, are shown. We also present the first evi...

K-S(0) and Lambda(0) production studies in p(p)over-bar collisions at root s=1800 and 630 GeV

K 0 S p and K 0 S p̄ in deep inelastic scattering at HERA ZEUS

A resonance search has been made in the K S p and K 0 S p̄ invariant-mass spectrum measured with the ZEUS detector at HERA using an integrated luminosity of 121 pb. The search was performed in the central rapidity region of inclusive deep inelastic scattering at an ep centre-of-mass energy of 300–318 GeV for exchanged photon virtuality, Q, above 1 GeV. Recent results from fixed-target experiment...

Interpretation of K + K̄ 0 pair production in pp collisions

A combined analysis of the published data on the pp → dK + ¯ K 0 reaction at excess energies of 47.4 MeV and 104.7 MeV is presented. Evidence is found for both the production of the a + 0 (980) scalar resonance and for a strong ¯ K 0 d final state interaction.