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Mercier, M.; Hill, J. C.; Wohn, F. K.; McCullough, C. M.; Nieland, M. E.; Winger, J. A.; Howard, Cheryl; Renwick, S. P.; Matheis, D. K.; Smith, Alan Р.

doi:10.1103/physrevc.33.1655

Cited by 57 publications

(22 citation statements)

References 31 publications

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“…Heckman and Lindstrom analyzed ED with heavy ion beams accelerated at the BEVA-LAC [5] for 160 and 12C projectiles at 2.1 GeV/nucleon colliding on Ag and Pb targets. Furthermore experiments investigating ED of 56Fe [6] and t80 [7] as projectiles and of S9Co, s9y and 197Au [8] as targets were performed.…”

Section: Introductionmentioning

confidence: 99%

Fragmentation cross sections of16O at 60 and 200 GeV/nucleon

Brechtmann

Heinrich

1988

Z. Physik A - Atomic Nuclei

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We used CR39 plastic nuclear track detectors (C t 2H1807) in combination with automatic track measurement to determine total charge changing and partial cross sections for the production of fragments of charge Z = 6 and Z = 7 in collisions of 160 beam nuclei at energies of 60 GeV/nucleon and 200 GeV/nucleon in targets H, C, CR39, CH2, AI, Cu, Ag and Pb. Total charge changing cross sections due to the process of electromagnetic dissociation are calculated based on a theoretical model and found to be consistent with total and partial electromagnetic dissociation cross sections derived from this experiment. The energy dependence of pure nuclear fragmentation is investigated. PACS: 25.70. Np;

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Section: Introductionmentioning

confidence: 99%

Fragmentation cross sections of16O at 60 and 200 GeV/nucleon

Brechtmann

Heinrich

1988

Z. Physik A - Atomic Nuclei

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“…Particle telescopes [2][3][4][5][6][7], plastic track detectors [8][9][10][11][12], and nuclear emulsions [13,14] have been used to separate nuclear and electromagnetic contributions to charge-changing interactions of projectiles, and gamma-ray spectroscopy [15][16][17][18] and particle telescopes [2,3,7,19] have been used to study nuclear and electromagnetic processes in which neutrons are emitted from a target. In all these experiments it is assumed that, if the impact parameter is less than a critical value, roughly the sum of radii of projectile and target, the interaction is purely nuclear; if not, it is purely electromagnetic.…”

mentioning

confidence: 99%

Nuclear and electromagnetic fragmentation of 2.25-TeV197Au nuclei

Price

1994

Z. Physik A - Hadrons and Nuclei

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Abstract.We report the first measurement of the total charge-loss cross section Gtot=aem+anuo and partial cross sections (for AZ = 1, 2, ... After presenting our data, we focus on the problem of disentangling two modes of high-energy nucleus-nucleus interactions -a nuclear mode which takes place when a relativistic projectile and a target pass each other within the range of the strong force and an electromagnetic mode which occurs at larger impact parameters such that only the virtual photons from either the target or the projectile can interact with the other. Particle telescopes [2][3][4][5][6][7], plastic track detectors [8][9][10][11][12], and nuclear emulsions [13,14] have been used to separate nuclear and electromagnetic contributions to charge-changing interactions of projectiles, and gamma-ray spectroscopy [15][16][17][18] and particle telescopes [2,3,7,19] have been used to study nuclear and electromagnetic processes in which neutrons are emitted from a target. In all these experiments it is assumed that, if the impact parameter is less than a critical value, roughly the sum of radii of projectile and target, the interaction is purely nuclear; if not, it is purely electromagnetic. In this view the cross section is the sum of the two contributions:

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“…Further experiments gave evidence for electromagnetic dissociation in the fragmentation of lSO projectiles at E/A = 1.7 GeV [4] and of 197Au targets excited by various projectiles [5,6]. Electromagnetic multiphonon excitations of the same targets were studied measuring the ln, 2n and 3n removal cross sections [7,8].…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic fission of238U at 600 and 1000 MeV per nucleon

Rubehn

Müller

Bassini³

et al. 1995

Z. Physik A - Hadrons and Nuclei

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Abstract. Electromagnetic fission of 23Su projectiles at E/A = 600 and 1000 MeV was studied with the ALADIN spectrometer at the heavy-ion synchrotron SIS. Seven different targets (Be, C, A1, Cu, In, Au and U) were used. By considering only those fission events where the two charges added up to 92, most of the nuclear interactions were excluded. The nuclear contributions to the measured fission cross sections were determined by extrapolating from beryllium to the heavier targets with the concept of factorization. The obtained cross sections for electromagnetic fission are well reproduced by extended Weizs~icker-Williams calculations which include E1 and E2 excitations. The asymmetry of the fission fragments' charge distribution gives evidence for the excitation of the double giant-dipole resonance in uranium.

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Electromagnetic dissociation ofCo59,Y

Cited by 57 publications

References 31 publications

Fragmentation cross sections of16O at 60 and 200 GeV/nucleon

Fragmentation cross sections of16O at 60 and 200 GeV/nucleon

Nuclear and electromagnetic fragmentation of 2.25-TeV197Au nuclei

Electromagnetic fission of238U at 600 and 1000 MeV per nucleon

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