Neutron halos in the excited states of 
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Belyaeva, T. L.; Goncharov, S. A.; Demyanova, A. S.; Ogloblin, A. A.; Danilov, A. N.; Маслов, В. А.; Sobolev, Yu. G.; Trzaska, W. H.; Khlebnikov, S. V.; Tyurin, G. P.; Burtebaev, N.; Janseitov, D. M.; Mukhamejanov, Y. S.

doi:10.1103/physrevc.98.034602

Cited by 18 publications

(24 citation statements)

References 52 publications

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“…Calculations [1] showed that the rms radii of the last neutron in the second 2¯, 1.67 MeV and third 1¯, 2.62 MeV excited states of 12 B far exceed those for the g.s. and the first 2 + , 0.95 MeV excited state.…”

Section: B Statesmentioning

confidence: 97%

“…Radii of the valence neutron for the first 5 excited states of 12 B were determined. In current work obtained results for excited states of 12 B [1] are compared with preliminary results of MDM analysis of existing ( 3 He,t) and ( 3 He, 3 He') literature data for isobar analog states in 12 N and 12 C.…”

Section: Introductionmentioning

confidence: 93%

“…Results of the our group ANC analysis of the 11 B(d,p) 12 B reaction data at E lab = 21.5 MeV are shown in [1]. Radii of the valence neutron for the first 5 excited states of 12 B were determined.…”

Section: Introductionmentioning

confidence: 99%

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Triplet ¹²B–¹²C–¹²N: Search for States with Halo

Danilov

Demyanova

Ogloblin

et al. 2020

Proceedings of 13th International Conference on Nucleus-Nucleus Collisions

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Previously in [1] neutron halo was confirmed for the 2¯, 1.67 MeV and 1¯, 2.62 MeV states in 12 B on base of Asymptotic Normalization Coefficients (ANC) method analysis of the obtained experimental data. An unexpected result was received for the unbound 3¯, 3.39 MeV state. Its halo radius was found to be increased and equal to ~ 5.9 fm. This result can be considered as an evidence of the halo-like structure in this 12 B state. It should be noted that last neutron in this state has a non-zero orbital momentum (l=2). So question arises about possible existence of states with halo in other members of the isobaric triplet 12 B-12 C-12 N. We can expect the formation of a proton halo in the 2¯, 1.19 MeV and 1¯, 1.80 MeV states of 12 N and 2¯, 16.62 MeV and 1¯, 17.23 MeV states of 12 C. To check this prediction preliminary Modified Diffraction Model (MDM) analysis of existing (3 He,t) and (3 He, 3 He') experimental data was done.

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Section: B Statesmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 93%

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Triplet ¹²B–¹²C–¹²N: Search for States with Halo

Danilov

Demyanova

Ogloblin

et al. 2020

Proceedings of 13th International Conference on Nucleus-Nucleus Collisions

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“…Now we study excited states of 12 N, namely the 2 + (0.96 MeV), 2 − (1.19 MeV), and 1 − (1.80 MeV) states of 12 N. We propose to use the MDM and apply it to analyze the ( 3 He,t) reaction data. Obtained radii for 12 N in the 2 − and 1 − states will be compared with those re- ceived for the excited states of 12 B [4]. The problem is that existing data are not completed enough to make definite conclusion about the radii of the 2 − and 1 − states in 12 N. The existing in the literature data are presented only at three energies: 36 [9], 49.8 [10], and 81 MeV [11].…”

Section: Introductionmentioning

confidence: 99%

“…B[4] and preliminary results of ANC analysis for 12 C[27] are present inTable 2. ± 0.06 d) 50 d) Notes.…”

mentioning

confidence: 99%

States of the 12N Nucleus with Increased Radii

Demyanova¹,

Danilov²,

Ogloblin³

et al. 2020

Jetp Lett.

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The differential cross sections of the 12 C( 3 He,t) 12 N reaction leading to formation of the 1 + (ground state), 2 + (0.96 MeV), 2 − (1.19 MeV), and 1 − (1.80 MeV) states of 12 N are measured at E( 3 He)=40 MeV. The analysis of the data is carried out within the modified diffraction model (MDM) and distorted wave Born approximation (DWBA). Enhanced rms radii were obtained for the ground, 2 − (1.19 MeV), and 1 − (1.80 MeV) states. We revealed that 12 B, 12 N, and 12 C in the IAS with T=1, and spin-parities 2 − and 1 − have increased radii and exhibit properties of neutron and proton halo states.

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Radiative Neutron Capture Rate of $$^{11}$$B$$(n,\gamma )^{12}$$B Reaction from the Coulomb Dissociation of $$^{12}$$B

Shubhchintak,

Singh,

Chatterjee

et al. 2024

Few-Body Syst

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We calculate the $$^{11}$$ 11 B$$(n,\gamma )^{12}$$ ( n , γ ) 12 B reaction rate which is an important constituent in nucleosynthesis networks and is contributed by resonant as well as non-resonant capture. For the resonant rate, we use the narrow resonance approximation whereas the non-resonant contribution is calculated with the Coulomb dissociation method for which we use finite-range distorted wave Born approximation theory. We then compare our calculated rate of $$^{11}$$ 11 B$$(n,\gamma )^{12}$$ ( n , γ ) 12 B reaction with those reported earlier and with other charged particle reactions on $$^{11}$$ 11 B.

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Neutron halos in the excited states of B12

Cited by 18 publications

References 52 publications

Triplet ¹²B–¹²C–¹²N: Search for States with Halo

Triplet ¹²B–¹²C–¹²N: Search for States with Halo

States of the 12N Nucleus with Increased Radii

Radiative Neutron Capture Rate of $$^{11}$$B$$(n,\gamma )^{12}$$B Reaction from the Coulomb Dissociation of $$^{12}$$B

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Neutron halos in the excited states of B12

Cited by 18 publications

References 52 publications

Triplet 12B–12C–12N: Search for States with Halo

Triplet 12B–12C–12N: Search for States with Halo

States of the 12N Nucleus with Increased Radii

Radiative Neutron Capture Rate of $$^{11}$$B$$(n,\gamma )^{12}$$B Reaction from the Coulomb Dissociation of $$^{12}$$B

Contact Info

Product

Resources

About

Triplet ¹²B–¹²C–¹²N: Search for States with Halo

Triplet ¹²B–¹²C–¹²N: Search for States with Halo