Author/Authors :
Adriani، نويسنده , , O. and van den Akker، نويسنده , , M. and Banerjee، نويسنده , , S. and Bنhr، نويسنده , , J. and Betev، نويسنده , , B. and Bourilkov، نويسنده , , D. and Bottai، نويسنده , , S. and Bobbink، نويسنده , , G. and Cartacci، نويسنده , , A. and Chemarin، نويسنده , , M. and Chen، نويسنده , , G. and Chen، نويسنده , , H.S. and Chiarusi، نويسنده , , T. and Dai، نويسنده , , C.J. and Ding، نويسنده , , L.K. and Duran، نويسنده , , I. and Fa، نويسنده ,
Abstract :
The L3 detector at the CERN electron–positron collider, LEP, has been employed for the study of cosmic ray muons. The muon spectrometer of L3 consists of a set of high-precision drift chambers installed inside a magnet with a volume of about 1000 m3 and a field of 0.5 T. Muon momenta are measured with a resolution of a few percent at 50 GeV. The detector is located under 30 m of overburden. A scintillator air shower array of 54 m by 30 m is installed on the roof of the surface hall above L3 in order to estimate the energy and the core position of the shower associated with a sample of detected muons. Thanks to the unique properties of the L3+C detector, muon research topics relevant to various current problems in cosmic ray and particle astrophysics can be studied.
Keywords :
Cosmic rays , L3+C detector , Muon spectrum , Astroparticle physics
