Search for fractionally charged nuclear fragments in relativistic heavy ion collisions

Journal Article · Mon Jan 01 04:00:00 EST 1996 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.53.358· OSTI ID:277415

Huentrup, G; Weidmann, D; Hirzebruch, S E; Winkel, E; Heinrich, W ^[1]

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1. Department of Physics, University of Siegen, Adolf-Reichweinstr. 2, 57068 Siegen (Germany)

We have investigated about 11000 fragments with charge 6{le}{ital Z}{le}10 produced by 200 GeV/nucleon {sup 32}S projectiles and about 11000 fragments with charge 6{le}{ital Z}{le}10 produced by 10.6 GeV/nucleon {sup 197}Au projectiles. Charges were measured using stacks of CR-39 plastic nuclear track detector foils. By multiple measurements on the surfaces of adjacent detector foils a charge resolution sufficient to identify fragment charges {ital Z}{plus_minus}1/3 could be achieved over a minimum track length of a few mm. We found no evidence for a fast fragment with a charge differing from an integer by as much as 1/3. {copyright} {ital 1996 The American Physical Society.}

• Sponsoring Organization: USDOE
• OSTI ID: 277415
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 1 Vol. 53; ISSN PRVCAN; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CHARGES
DETECTION
GOLD 197 REACTIONS
HEAVY ION REACTIONS
NUCLEAR FRAGMENTS
RELATIVISTIC RANGE
SULFUR 32 REACTIONS
TEV RANGE