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The observation of the production of antihydrogen atoms H̄0 = p̄e+, the simplest atomic bound state of antimatter, is presented. A method has been used by the PS210 collaboration at LEAR which assumes that the production of H̄0 is predominantly mediated by ...
The direct creation of an electron-positron pair by a high-energy charged particle manifests itself in a certain type of track configuration which is known as a 'trident'. A device for automatic scanning and detection of 'tridents' in nuclear emulsion is d ...
A model based on the linearized Vlasov-Maxwell equations, taking into account the non-local interactions of particles due to their finite Larmor radii, has been developed. Assuming an inhomogeneous I-D slab plasma, Maxwellian equilibrium distribution funct ...
The absolute muon flux between 20 and 3000 GeV is measured with the L3 magnetic muon spectrometer for zenith angles ranging from 0°to 58°. Due to the large exposure of about 150 m2sr d, and the excellent momentum resolution of the L3 muon chambers, a preci ...
Dye-linked formaldehyde dehydrogenase (I) was partially purified (11-fold) from MeOH- and EtOH-grown Hyphomicrobium X. Through not homogeneous, it did not contain MeOH dehydrogenase, formate dehydrogenase, or cytochrome c. Methylphenazonium methylsulfate ( ...
The L3+C muon detector at the CERN electron-positron collider, LEP, is used for the detection of very-high-energy cosmic gamma-ray sources through the observation of muons of energies above 20, 30, 50 and 100 GeV. Daily or monthly excesses in the rate of s ...
