16444405
Rare Particle Searches with the high altitude SLIM experiment
The search for rare particles in the cosmic radiation remains one of the main aims of nonaccelerator particle astrophysics. Experiments at high altitude allow lower mass thresholds with respect to detectors at sea level or underground. The SLIM experiment is a large array of nuclear track detectors located at the Chacaltaya High Altitude Laboratory (5290 m a.s.l.). The preliminary results from the analysis of the first 227 m 2 exposed for more than 3.6 y are here reported. The detector is sensitive to Intermediate Mass Magnetic Monopoles, 10 5 < mM < 10 12 GeV, and to SQM nuggets and Q-balls, which are possible Dark Matter candidates.
108482839
Limited Streamer Chamber Testing and Quality Evaluation in Astra
717821
An Uncoventional Approach for a Straw Tube-Microstrip Detector
We report on a novel concept of silicon microstrips and straw tubes detector, where integration is accomplished by a straw module with straws not subjected to mechanical tension in a Rohacell lattice and carbon fiber reinforced plastic shell. Results on mechanical and test beam performances are reported on as well.
120344543
Very backward π0 and η0 production by proton projectiles on a deuterium target at intermediate energies
Abstract The production of π 0 and η 0 mesons in the reactions pd → π 0 τ and pd → η 0 τ has been studied at very backward angles for kinetic proton energies T p ranging from 0.92 to 2.6 GeV. The excitation functions at θ π = θ η = 180° display large structures which might be related to baryonic (Δ and N ∗ ) excitations in the intermediate state.
117618272
alphaalpha elastic scattering at 4.32 GeV/c and 5.07 GeV/c
Abstract αα elastic scattering was measured at 4.32 GeV/ c and 5.07 GeV/ c incident momenta. The four-momentum transfer range, extending from −0.05 to −0.77 (GeV/ c ) 2 , covers the first and second minimum regions. The results are compared with calculations based on Glauber theory.
120165306
A measurement of the pion charge radius
Abstract We report a measurement of the negative pion electromagnetic form factor in the range of space-like four-momentum transfer 0.014 q 2 c ) 2 . The measurement was made by the NA7 collaboration at the CERN SPS, by observing the interaction of 300 GeV pions with the electrons of a liquid hydrogen target. The form factor is fitted by a pole form with a pion radius of 〈r 2 〈 1 2 = 0.657 ± 0.012 fm.
120768704
Maximum charged particle densities in small intervals of rapidity at ISR energies
120931449
MULTIPLICITY DIFFERENCE BETWEEN HEAVY AND LIGHT QUARK JETS
122298346
Studies of quark and gluon jet properties at LEP
Abstract In this short review, necessarily incomplete and qualitative, some selected results on global properties of quarks and gluons and the most recent results from the study of differences between quark and gluon jets produced at LEP, are presented.