3 research outputs found
Astrophysical and cosmological consequences of a variable Planck's constant
SIGLEAvailable from British Library Document Supply Centre-DSC:99/16056 / BLDSC - British Library Document Supply CentreGBUnited Kingdo
Strangeness production in deep inelastic positron - proton scattering at HERA
Measurements are presented of meson and baryon production in
deep-inelastic positron-proton scattering (DIS) in the kinematic range GeV and . The measurements, obtained using
the H1 detector at the HERA collider, are discussed in the light of possible
mechanisms for increased strangeness production at low Bjorken-. Comparisons
of the spectra, where is the fractional longitudinal momentum in
the hadronic centre-of-mass frame, with results from electron-positron
annihilation are made. The spectra and the ``seagull'' plot are
compared with previous DIS results. The mean and multiplicities
are studied as a function of the centre-of-mass energy and are observed to
be consistent with a logarithmic increase with when compared with previous
measurements. A comparison of the levels of strangeness production in
diffractive and non-diffractive DIS is made. An upper limit of nb, at the
95% confidence level, is placed on the cross-section for QCD instanton induced
events.Comment: 36 pages, latex, 15 Figure