Universal fragment-momentum distribution in high-energy nucleus-nucleus collisions

Journal Article · Mon Jul 25 04:00:00 EDT 1977 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.39.177· OSTI ID:7218397

Price, P B; Stevenson, J; Frankel, K

Fragments with 1 < or = Z < or = 12, some with energies as low as 3 MeV/nucleon and some with energies as high as 120 MeV/nucleon, have been analyzed in high-energy nucleus-nucleus reactions with C, Ne, and Ar projectiles. For a given projectile the invariant cross sections of all fragments appear to define a ''universal'' curve that is exponential in momentum, provided momentum is evaluated in a frame in which the distribution is isotropic. The low speed of the frame (approx. 0.01c to approx. 0.1c) suggests emission from the recoiling target.

• Research Organization: Lawrence Berkeley Laboratory and Department of Physics, University of California, Berkeley, California 94720
• OSTI ID: 7218397
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 39:4; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

651925* -- Nuclear Properties &amp; Reactions
A=190-219
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652025 -- Nuclear Properties &amp; Reactions
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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
ARGON 40 REACTIONS
CARBON 12 REACTIONS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DISTRIBUTION
ENERGY RANGE
GEV RANGE
GEV RANGE 10-100
GOLD 197 TARGET
HEAVY ION REACTIONS
INCLUSIVE INTERACTIONS
INTERACTIONS
KINETICS
LINEAR MOMENTUM
MASS SPECTRA
NEON 20 REACTIONS
NUCLEAR REACTION KINETICS
NUCLEAR REACTION YIELD
NUCLEAR REACTIONS
PARTICLE INTERACTIONS
REACTION KINETICS
RECOILS
SPECTRA
TARGETS
URANIUM 238 TARGET
YIELDS