Published December 1983 | Version v1
Report

Active multitarget experiment for anomalons

  • 1. Laboratori Nazionali di Frascati, Italy

Description

Anomalons are in fashion despite of their ancient first appearance in photographic emulsions exposed to cosmic rays. As matter of fact anomalons do not fit in any conventional picture of nuclear and particle physics. Until now anomalons have been studied in emulsions by exposures at cosmic rays or, more recently, at relativistic ion beams. This technique provides an excellent spatial resolution, but does not allow to clarify the behaviour of anomalous fragments in vacuum (or air) and is very poor in statistics and lacking in oriented triggers. Only the counter experiments technique can provide the necessary statistics and investigate if anomalons are spontaneously decaying. We propose to use subsequent active targets in order to trigger on reinteraction of produced fragments. The experimental method takes advantages from the peculiar feature of anomalons and from their enhanced cross section. The presence of anomalons among the fragments originates an over production of secondary interactions. Therefore triggering on successive interactions of the fragments is the best method to substantiate the existence of anomalons and to improve the selectivity of an experiment. The comparison of the rates of the secondary interactions is directly correlated with the fraction of anomalous fragments, their cross section and the ''memory'' effect. The use of silicon solid state detectors as active target, as well as, tracking and charge detectors for the emitted fragments is described

Additional details

Publishing Information

Imprint Title
Proceedings of the 6th high energy heavy ion study and 2nd workshop on anomalons
Journal Page Range
p. 87-90.
Report number
LBL--16281

Conference

Title
6. high energy heavy ion study and 2. workshop on anomalons.
Dates
28 Jun - 1 Jul 1983.
Place
Berkeley, CA (USA).

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
15073102
Subject category
S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ANOMALONS; HEAVY ION REACTIONS; SENSITIVITY; SI SEMICONDUCTOR DETECTORS; SPALLATION; SPECIFICATIONS; TELESCOPE COUNTERS
Descriptors DEC
MEASURING INSTRUMENTS; NUCLEAR FRAGMENTS; NUCLEAR REACTIONS; RADIATION DETECTORS; SEMICONDUCTOR DETECTORS