5,058 research outputs found
CP Violation and Future `B-Factories'
This lecture contains a brief introduction to CP violation in the B system
before discussing future experimental programmes and their CP reach in the B
system.Comment: 12 pages. 11 postscript figures + 1 postscript preprint logo + 1
LaTeX file + 1 style file. Also available at
http://ppewww.ph.gla.ac.uk/preprints/97/09/ Lecture given at ` The Actual
Problems of Particle Physics', Gomel, Belaru
QCD at HERA
A review of HERA measurements of structure functions, fragmentation functions
and forward jet production is presented.Comment: 12 pages. 13 postscript figures + 1 postscript preprint logo + 1
LaTeX file + 1 style file. Also available at
http://ppewww.ph.gla.ac.uk/preprints/98/02/ Invited talk given at SILAFAE9
Gravitational Stability of Vortices in Bose-Einstein Condensate Dark Matter
We investigate a simple model for a galactic halo under the assumption that
it is dominated by a dark matter component in the form of a Bose-Einstein
condensate involving an ultra-light scalar particle. In particular we discuss
the possibility if the dark matter is in superfluid state then a rotating
galactic halo might contain quantised vortices which would be low-energy
analogues of cosmic strings. Using known solutions for the density profiles of
such vortices we compute the self-gravitational interactions in such halos and
place bounds on the parameters describing such models, such as the mass of the
particles involved.Comment: 17 pages, 4 figures, submitted to CQ
Poor sleep quality and progression of gait impairment in an incident Parkinson’s disease cohort
Abnormal sleep may associate with cognitive decline in Parkinson's disease (PD). Furthermore, sleep dysfunction may associate with worse motor outcome. We hypothesised that PD patients with poor quality sleep would have greater progression in gait dysfunction, due to structural and functional overlap in networks subserving sleep and gait regulation. 12 PD patients and 12 age-matched controls completed longitudinal follow-up over 36 months. Poor sleep efficiency and greater sleep fragmentation correlated significantly with progression of step-width variability, a gait characteristic mediated by postural control, providing evidence that poor sleep in PD is associated with a more rapid deterioration in gait
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