Detection of short-lived particles in nuclear emulsions

doi:10.1016/0029-554X(79)90298-2

Nuclear Instruments and Methods

Volume 165, Issue 1, 15 September 1979, Pages 1-5

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Abstract

We present a method for detecting short-lived particles in nuclear emulsions. Production and decay vertices as close as 0.5 μm can be resolved. This corresponds to a lifetime of the order of 10⁻¹⁵s. The principle is to fit straight lines to the tracks and make a chi-square test of the hypothesis of a single vertex.

This technique may be useful for detecting decays of heavy quarks.

References (7)

J. Ellis et al.
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Chernyavsky et al., Preprint No. 149, Lebedev Phys....
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There are more references available in the full text version of this article.

Cited by (1)

DETECTION AND MEASUREMENT OF VERY SHORT FLIGHT PATHS IN NUCLEAR EMULSIONS.
1980, Nuclear instruments and methods
The application of the nuclear emulsion technique to detect and measure flight paths of unstable particles shorter than a few microns is given. Besides the description of the method of measurement and of the analysis, particular care is paid to the possible sources of biases. It is concluded that the transverse distances of the decay prongs to the primary vertex can be determined with a mean accuracy ∼0.05 μm.

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Detection of short-lived particles in nuclear emulsions

Abstract

Nucl. Phys.

SLAC-PUB-2235

CERN Courier, A charmed life