Coulomb dissociation of 19C

P. Banerjee

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Coulomb dissociation of 19C

P. Banerjee

Nuclear Theory · Submitted 14 Jan 1999

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim However, it appears that the existing experimental data do not allow to draw a clear conclusion about the ground state configuration of this nucleus.

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Compiled by classifier-1.13.0 via TypeSafe API, question bank abstract-p1-20260923, 2026-09-23: 1 request, 5,081 input tokens.

What the abstract itself states, as probabilities: claims first 0.04 · states limitation 0.88 · human participants 0.01 · controlled comparison 0.06 · randomized assignment 0.01 · states quantitative result 0.95 · compares with prior results 0.88 · mentions code or data availability 0.02.

The abstract, sentence by sentence

arXiv listing abstract v2. Results and the main claim are underlined; show every role.

We aim to re-investigate the structure of the neutron rich exotic nucleus ^{19}C through studies of its Coulomb breakup reactions, assuming that its excitation is to states in the low energy continuum. The method used retains all finite-range effects associated with the interactions between the breakup fragments and can use realistic wave functions for this possibly halo nucleus. We apply the method to compute the longitudinal momentum distribution of ^{18}C, exclusive neutron angular distribution and relative energy spectrum of ^{19}C following Coulomb breakup of ^{19}C on heavy targets at beam energies below 100 MeV/nucleon. The calculated results are compared with recently available experimental data. In the majority of the few cases, the data favour ^{18}C(0^+) \otimes 1s_{1/2} as the probable ground state configuration of ^{19}C, with a one-neutron separation energy of 0.53 MeV. However, it appears that the existing experimental data do not allow to draw a clear conclusion about the ground state configuration of this nucleus.

background contribution method result interpretation main claim

What the classifier reports for each sentence. The number is the probability it gave the label.
#	sentence	role	the authors' own work	states the main conclusion	strength
s0	We aim to re-investigate the structure of the neutron rich exotic nucleus ^{19}C through studies of its Coulomb breakup reactions, assuming that its excitation is to states in the low energy continuum.	contribution 0.81	0.33	0.04	hedged possibility 0.60
s1	The method used retains all finite-range effects associated with the interactions between the breakup fragments and can use realistic wave functions for this possibly halo nucleus.	method 0.99	0.56	0.02	asserted 0.92
s2	We apply the method to compute the longitudinal momentum distribution of ^{18}C, exclusive neutron angular distribution and relative energy spectrum of ^{19}C following Coulomb breakup of ^{19}C on heavy targets at beam energies below 100 MeV/nucleon.	method 0.57	0.92	0.04	asserted 0.99
s3	The calculated results are compared with recently available experimental data.	method 0.49	0.73	0.03	asserted 0.90
s4	In the majority of the few cases, the data favour ^{18}C(0^+) \otimes 1s_{1/2} as the probable ground state configuration of ^{19}C, with a one-neutron separation energy of 0.53 MeV.	result 0.82	0.64	0.54	hedged possibility 0.96
s5	However, it appears that the existing experimental data do not allow to draw a clear conclusion about the ground state configuration of this nucleus.	limitation 0.57	0.56	0.51	hedged possibility 0.93

What kind of paper the classifier reports this is: simulation study 0.87 · evidence from simulation or computation 0.78.

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arXiv listing abstract v2

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The paper

Original abstract

We aim to re-investigate the structure of the neutron rich exotic nucleus ^{19}C through studies of its Coulomb breakup reactions, assuming that its excitation is to states in the low energy continuum. The method used retains all finite-range effects associated with the interactions between the breakup fragments and can use realistic wave functions for this possibly halo nucleus. We apply the method to compute the longitudinal momentum distribution of ^{18}C, exclusive neutron angular distribution and relative energy spectrum of ^{19}C following Coulomb breakup of ^{19}C on heavy targets at beam energies below 100 MeV/nucleon. The calculated results are compared with recently available experimental data. In the majority of the few cases, the data favour ^{18}C(0^+) \otimes 1s_{1/2} as the probable ground state configuration of ^{19}C, with a one-neutron separation energy of 0.53 MeV. However, it appears that the existing experimental data do not allow to draw a clear conclusion about the ground state configuration of this nucleus.

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