Small-angle fragmentation of carbon ions at 0.6 GeV/n. A comparison with models of ion-ion interactions

Journal Article · Fri May 29 00:00:00 EDT 2015 · EPJ Web of Conferences

DOI:https://doi.org/10.1051/epjconf/20159504035· OSTI ID:1165170

Krutenkova, Anna P. ^[1]; Abramov, B. M. ^[1]; Alekseev, P. N. ^[1]; Borodin, Yu. A. ^[1]; Bulychjov, S. A. ^[1]; Dukhovskoy, I. A. ^[1]; Khanov, A. I. ^[1]; Kulikov, V. V. ^[1]; Martemianov, M. A. ^[1]; Mashnik, Stepan Georgievich ^[2]; Matsyuk, M. A. ^[1]; Turdakina, E. N. ^[1]

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1. Inst. for Theoretical and Experimental Physics, Moscow (Russia)
2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

The momentum distributions of hydrogen and helium isotopes from ¹²C fragmentation at 3.5° were measured at 0.6 GeV/nucleon in the FRAGM experiment at ITEP TWA heavy ion accelerator. The fragments were selected by correlated time of flight and dE/dx measurements with a magnetic spectrometer with scintillation counters. The main attention was drawn to the high momentum region where the fragment velocity exceeds the velocity of the projectile nucleus. The momentum spectra of fragments span the region of the fragmentation peak as well as the cumulative region. Moreover, the differential cross sections cover six orders of magnitude. The distributions measured are compared to the predictions of three ion-ion interaction models: BC, QMD and LAQGSM03.03. The kinetic energy spectra of fragments in the projectile rest frame have an exponential shape with two temperatures, being defined by their slope parameters.

• Research Organization: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE
• Grant/Contract Number: AC52-06NA25396
• OSTI ID: 1165170
• Report Number(s): LA-UR-14-29243
• Journal Information: EPJ Web of Conferences, Vol. 95; Conference: Int. Conf. on New Frontiers in Physics (ICNFP2014) ; 2014-07-29 - 2014-08-07 ; Crete, Greece; ISSN 2100-014X
• Publisher: EDP Sciences
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
Atomic and Nuclear Physics