Charm Particles

  • G. Diambrini-Palazzi
Part of the NATO ASI Series book series (NSSB, volume 165)


One of the most characteristic features of charm particle physics is related to the lifetime of such particles, which is of the order of (5 – 10) * 10−13 s. Because of this, a particle with a momentum of 100 GeV/c may travel a distance on the order of a centimeter. This is a small distance from the standpoint of detecting the particle and measuring its properties. It is this short decay length that has led to the extensive use of high spatial resolution detectors both of the visualizing type, such as nuclear emulsions and special bubble chambers, and electronic techniques, such as semiconductor microstrips1 and silicon counters. It has also led to some interest in the possibility of using bent crystal channeling to deflect charm particles and thereby provide a new handle on the study of charm decay.2


Nuclear Emulsion Interactive Diagram Charm Production Charm Meson Bend Crystal 
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  1. 1.
    A. Menzione, this volume.Google Scholar
  2. 2.
    C. R. Sun, this volume.Google Scholar
  3. 3.
    Bologna, CERN, Florence, Genoa, Madrid, Rome, Santander, Valencia Collaboration—Il Nuovo Cimento, 85A:241 (1985); Phys. Lett. 140B:241 (1984); Phys. Lett. 140B:123 (1984); CERN Report-EP 86–76 (to be published); CERN Report-EP 86–77 (to be published); CERN Report-EP 86–60 (to be published); see also V. Luth—invited talk presented at the International Symposium on Production and Decay of Heavy Flavor, Heidelberg, Germany, May 19–23, 1986; Proc. 21st Intern. Conf. on High Energy Physics, Paris, 1982; Proc. Int. Symp. on Lepton and Photon Interaction at High energies. A recent bibliography of charm particle lifetimes and other parameters is contained in the Review of Particle Properties, Phys. Lett. 170B (April 1986).Google Scholar
  4. 4.
    B. Guberina et al., Charmed baryon lifetime differences, DESY-Report 86–093 (August 1986).Google Scholar

Copyright information

© Springer Science+Business Media New York 1987

Authors and Affiliations

  • G. Diambrini-Palazzi
    • 1
    • 2
  1. 1.Dipartimento di FisicaUniversity of RomeItaly
  2. 2.Dipartimento di FisicaINFN Sezione di RomaItaly

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