The decline of multifragmentation in {sup 197}Au + {sup 197}Au collisions at E/A = 100, 250 and 400 MeV
Abstract
Multifragmentation events have been measured in 4{pi} coverage for {sup 197}Au collisions at E/A = 100, 250 and 400 MeV using the Miniball/Wall, the Catania Silicon-CsI array and the Aladin Spectrometer. For E/A = 250 MeV and 400 MeV, there is monotonic relation between charge particle multiplicities, N{sub c} and bound charge particles from the projectile spectator, Z{sub bound}. At E/A = 100 MeV, the number of intermediate mass fragments (Z>3) produced increases monotonically with N{sub c} reaching values close to 10 fragments for the most central collisions. As the incident energy is increased, however, the multiplicity of fragments produced in central collisions decreases, consistent with an evolutionn of multifragmentation in the central collisions towards vaporization. At the highest energy, E/A = 400 MeV, multifragmentation becomes a phenomenon confined to intermediate impact parameters, consistent with an evolution towards peripheral collisions as the process evolves towards limiting fragmentation.
- Authors:
-
- Michigan State Univ., East Lansing, MI (United States)
- Publication Date:
- OSTI Identifier:
- 243612
- Report Number(s):
- CONF-9304297-
Journal ID: BAPSA6; ISSN 0003-0503; TRN: 96:002199-0112
- Resource Type:
- Journal Article
- Journal Name:
- Bulletin of the American Physical Society
- Additional Journal Information:
- Journal Volume: 38; Journal Issue: 2; Conference: 1993 joint meeting of the American Physical Society and the American Association of Physics Teachers, Washington, DC (United States), 12-15 Apr 1993; Other Information: PBD: Apr 1993
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 66 PHYSICS; GOLD 197 TARGET; GOLD 197 REACTIONS; LIMITING FRAGMENTATION; GEV RANGE 10-100
Citation Formats
Tsang, M B. The decline of multifragmentation in {sup 197}Au + {sup 197}Au collisions at E/A = 100, 250 and 400 MeV. United States: N. p., 1993.
Web.
Tsang, M B. The decline of multifragmentation in {sup 197}Au + {sup 197}Au collisions at E/A = 100, 250 and 400 MeV. United States.
Tsang, M B. 1993.
"The decline of multifragmentation in {sup 197}Au + {sup 197}Au collisions at E/A = 100, 250 and 400 MeV". United States.
@article{osti_243612,
title = {The decline of multifragmentation in {sup 197}Au + {sup 197}Au collisions at E/A = 100, 250 and 400 MeV},
author = {Tsang, M B},
abstractNote = {Multifragmentation events have been measured in 4{pi} coverage for {sup 197}Au collisions at E/A = 100, 250 and 400 MeV using the Miniball/Wall, the Catania Silicon-CsI array and the Aladin Spectrometer. For E/A = 250 MeV and 400 MeV, there is monotonic relation between charge particle multiplicities, N{sub c} and bound charge particles from the projectile spectator, Z{sub bound}. At E/A = 100 MeV, the number of intermediate mass fragments (Z>3) produced increases monotonically with N{sub c} reaching values close to 10 fragments for the most central collisions. As the incident energy is increased, however, the multiplicity of fragments produced in central collisions decreases, consistent with an evolutionn of multifragmentation in the central collisions towards vaporization. At the highest energy, E/A = 400 MeV, multifragmentation becomes a phenomenon confined to intermediate impact parameters, consistent with an evolution towards peripheral collisions as the process evolves towards limiting fragmentation.},
doi = {},
url = {https://www.osti.gov/biblio/243612},
journal = {Bulletin of the American Physical Society},
number = 2,
volume = 38,
place = {United States},
year = {Thu Apr 01 00:00:00 EST 1993},
month = {Thu Apr 01 00:00:00 EST 1993}
}