Fragmentation of {sup 7}Li relativistic nuclei on a proton into the {sup 3}H + {sup 4}He channel

In a track nuclear photoemulsion exposed to a beam of {sup 7}Li nuclei accelerated to a momentum of 3 GeV/c per nucleon at the synchrophasotron of the Joint Institute for Nuclear Research (JINR, Dubna), 13 events in which {sup 7}Li nuclei interacting with protons break up into {sup 3}H and {sup 4}He...

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Bibliographic Details
Published in:Physics of atomic nuclei 2010-11, Vol.73 (11)
Main Authors: Peresadko, N. G., Alexandrov, Yu. A., Gerasimov, S. G., Dronov, V. A., Larionova, V. G., Pisetskaya, A. V., Tamm, E. I., Fetisov, V. N., Kharlamov, S. P., Shesterkina, L. N.
Format: Article
Language:English
Subjects:
ATOMIC AND MOLECULAR PHYSICS
BARYONS
BEAMS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
COLLOIDS
CROSS SECTIONS
DISPERSIONS
DISSOCIATION
ELEMENTARY PARTICLES
EMULSIONS
ENERGY RANGE
EVEN-EVEN NUCLEI
FERMIONS
FRAGMENTATION
GEV RANGE
HADRONS
HELIUM 4
HELIUM ISOTOPES
HYDROGEN ISOTOPES
INELASTIC SCATTERING
INTERNATIONAL ORGANIZATIONS
ION BEAMS
ISOTOPES
JINR
LIGHT NUCLEI
LINEAR MOMENTUM
LITHIUM 7
LITHIUM 7 BEAMS
LITHIUM ISOTOPES
LONGITUDINAL MOMENTUM
MEV RANGE
NUCLEAR PHYSICS AND RADIATION PHYSICS
NUCLEI
NUCLEONS
ODD-EVEN NUCLEI
PARTICLE TRACKS
PHOTOGRAPHIC EMULSIONS
PROTONS
RADIOISOTOPES
RECOILS
RELATIVISTIC RANGE
SCATTERING
STABLE ISOTOPES
TRANSVERSE MOMENTUM
TRITIUM
YEARS LIVING RADIOISOTOPES
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Summary:In a track nuclear photoemulsion exposed to a beam of {sup 7}Li nuclei accelerated to a momentum of 3 GeV/c per nucleon at the synchrophasotron of the Joint Institute for Nuclear Research (JINR, Dubna), 13 events in which {sup 7}Li nuclei interacting with protons break up into {sup 3}H and {sup 4}He fragments were detected among 3730 inelastic-interaction events. For this fragmentation channel, the cross section was found to be 8 {+-} 2 mb. The average value of the fragment total transverse momentum was 214 {+-} 5 MeV/c. This value exceeds markedly the average value of the transverse-momentum transfer in the coherent dissociation of {sup 7}Li nuclei on track-emulsion nuclei (166{+-}5MeV/c). The recoil-proton transverse momentum was on average 98% of the total proton momentum. The longitudinal-momentum distribution of protons was characterized by a variance of 16 MeV/c and a mean value of 37 {+-} 2MeV/c.
ISSN:1063-7788
1562-692X
DOI:10.1134/S1063778810110177