Production and decay of charmed baryons: Spectra of Muons and asymmetry between mu(+) and mu(-)

摘要

The calculation of muon spectra from the decay of Lambda(c) baryons was carried out on the basis of the description of recent data on charmed-baryon production in hadronic interactions. Data are described in the framework of the quark-gluon string model (QGSM) that allows us to consider primary proton interactions of arbitrary high energy. A Monte Carlo code was built for charmed-baryon semileptonic decay in order to obtain the kinematical characteristics of the resulting particles. It is predicted that the charge asymmetry between energy spectra of mu(+) and mu(-) in the laboratory system will be clearly seen as the consequence of asymmetry between the spectra of charmed baryons and antibaryons. This extension of the QGSM can be useful to correct the calculations of muon and neutrino spectra in astrophysics. (C) 2005 Pleiades Publishing, Inc.