1985
DOI: 10.1103/physrevlett.54.771
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Search for anomalous fragments in 1.8A-GeVAr40reactions in nuclear emulsions

Abstract: Results are presented from an investigation of the mean free path in nuclear emulsion of multiply charged fragments, produced by 1.8^-GeV argon nuclei. Charge identification of 6965 fragments with charges Z ^ 2, producing 2192 secondary interactions, has been made. No dependence of the mean free path on the distance from the preceding collision is observed and thus our result is consistent with the nonexistence of anomalons.

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Cited by 33 publications
(3 citation statements)
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“…The distance between the two successive blobs is defined as gap length. This length is related to the ionization caused by the charged particle [8,7]. The ratio of the total number of observed gaps to the number of gaps greater than a certain optimum value or the negative slope (G) of the log of frequency distribution of gap length is a measure of the grain density and is called Gap Length Coefficient (G).…”
Section: (A-2) Gap-length Coefficient Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…The distance between the two successive blobs is defined as gap length. This length is related to the ionization caused by the charged particle [8,7]. The ratio of the total number of observed gaps to the number of gaps greater than a certain optimum value or the negative slope (G) of the log of frequency distribution of gap length is a measure of the grain density and is called Gap Length Coefficient (G).…”
Section: (A-2) Gap-length Coefficient Methodsmentioning
confidence: 99%
“…The number of blobs (holes) per 100 µm is called blob (hole) density and represented by B (H). If the ionization is small, the blob density is a good parameter [5,7,8] to resolve the charges but in case of particles with heavy charge, the blob density increases up to Z = 2 and then drops as blobs continue to coalesce into larger blobs as shown in figure 1. Thus for very large ionization, blob density method is not sensitive.…”
Section: (A-1) Blob Densitymentioning
confidence: 99%
“…On the MFPs of helium PFs in nuclear emulsion, four experiments (Ghosh et al, 1985;Ganssauge et al, 1985;El-Nadi et al, 1984;Zhang et al, 2001) saw positive evidences for a reduced MFP, while the others contradicted them (Singh et al, 1988(Singh et al, , 1990Sengupta et al, 1989;Khan et al, 1989;Jain et al, 1985;Ismail et al, 1984;Bhanja et al, 1985;El-Nadi et al, 1993). To explain the possible existence of anomalons, various theoretical models have been proposed, which include the color polarization of quark states (Romo and Watson, 1979), quasi-molecular nuclear states (Bayman et al, 1982), and the relativistic mean-field theory (Rufa et al, 1987(Rufa et al, , 1990Schaffner et al, 1992;Abou-El-Naga, 1990), etc.…”
Section: Introductionmentioning
confidence: 95%