منابع مشابه
Strangeness Production and Hadron Spectroscopy at HERA
An overview of the recent results on strangeness production and spectroscopy from the electron-proton collider experiments H1 and ZEUS at HERA is presented. Production of particles with light and strange quarks is discussed and compared with both theoretical predictions and with data from ee experiments. Measurements in the charm sector cover studies of the radially and orbitally excited charm ...
متن کاملThe Strangeness Signal in Hadron Production at Relativistic Energy
Lattice-QCD theory predicts the disappearance of the hadronic phase of matter once the energy density exceeds a critical value of about 1 GeV per fm3 [1], giving rise to a continuous, deconfined QCD state that is governed by the elementary interaction of quarks and gluons. To recreate this phase in the laboratory one collides heavy nuclei at relativistic energy with the goal of ascertaining the...
متن کاملStrangeness and Hadron Structure
The nucleon wave function may contain a significant component of s̄s pairs, according to several measurements including the π-nucleon σ term, charm production and polarization effects in deep-inelastic scattering. In addition, there are excesses of φ production in LEAR and other experiments, above predictions based the naive Okubo-Zweig-Iizuka rule, that may be explained if the nucleon wave func...
متن کاملUniversality in Hadron Production in Electron- Positron, Lepton-hadron and Hadron-hadron Reactions
Universality says that the mechanisms of hadron production are the same in all high-energy processes in which most of the final state hadrons arise from hard or semi-hard scattering of partons. Differences in the detailed composition of the final states are assumed to be due to differences in the flavours and configurations of the initial partons. Perturbative quantum chromodynamics (pQCD) has ...
متن کاملStrangeness Production in pp and pn Reactions at COSY
The COoler SYnchrotron COSY-Jülich delivers phase-space cooled, polarized proton and deuteron beams with momenta up to p=3.65 GeV/c. Various experiments on hadron-induced strangeness production on proton, neutron and nuclear targets have been carried out. Here we report about recent results on associated strangeness production in pp→KY N (Y =Λ, Σ) reactions, on K +-production in pn collisions, ...
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ژورنال
عنوان ژورنال: Progress in Particle and Nuclear Physics
سال: 2012
ISSN: 0146-6410
DOI: 10.1016/j.ppnp.2012.01.005