Deuteron breakup at extreme forward angles: Failure of a pure Coulomb dissociation description

Journal Article · Wed May 01 04:00:00 EDT 1996 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.53.2287· OSTI ID:283965

Samanta, C; Mukherjee, S; Kanungo, R ^[1]; Basu, D N ^[2]

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1. Saha Institute of Nuclear Physics, 1/AF, Bidhan Nagar, Calcutta-700064 (India)
2. Variable Energy Cyclotron Centre, 1/AF, Bidhan Nagar, Calcutta-700064 (India)

We present an analysis of recent measurement of the 56 MeV deuteron breakup data on {sup 12}C, {sup 40}Ca, and {sup 208}Pb targets taken by Okamura {ital et} {ital al}.. The cross section measured at {theta}{sub {ital p}}={theta}{sub {ital n}}=0{degree} was claimed to be a strong evidence of Coulomb breakup, especially in light nuclei. However, the single-step pure Coulomb breakup formalism fails to describe both the magnitude and the shape of the triple differential cross section even in light nuclei. At 56 MeV incident deuteron energy, the nuclear interference effect is found to be significant in all the above nuclei. The prior form distorted-wave Born-approximation calculations with unusual optical potentials in the exit channel can reproduce the highly asymmetric shapes of the triple differential cross section at the extreme forward angle, but, fail to give their exact magnitude. The possible role of multistep processes is discussed. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 283965
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 5 Vol. 53; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BORN APPROXIMATION
BREAKUP REACTIONS
CALCIUM 40 TARGET
CARBON 12 TARGET
CROSS SECTIONS
DEUTERON REACTIONS
DEUTERONS
DIFFERENTIAL CROSS SECTIONS
DISSOCIATION
DISTORTED WAVE THEORY
LEAD 208 TARGET
LIGHT NUCLEI
OPTICAL MODELS