Search for unbound<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi mathvariant="normal">Be</mml:mi><mml:mprescripts /><mml:none /><mml:mrow><mml:mn>15</mml:mn></mml:mrow></mml:mmultiscripts></mml:math>states in the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mn>3</mml:mn><mml:mi>n</mml:mi></mml:mrow><mml:mo>+</mml:mo><mml:mmultiscripts><mml:mi mathvariant="normal">Be</mml:mi><mml:mprescripts /><mml:none /><mml:mrow><mml:mn>12</mml:mn></mml:mrow>

Kuchera, A. N.; Spyrou, A.; Smith, J. K.; Baumann, T.; Christian, G.; DeYoung, Paul; Finck, J. E.; Frank, N.; Jones, Michael D.; Kohley, Z.; Mosby, S.; Peters, William A.; Thoennessen, M.

doi:10.1103/physrevc.91.017304

Cited by 12 publications

(10 citation statements)

References 24 publications

(70 reference statements)

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“…These events probably originate from the more dissipative reactions which could bias the data towards α/2p2n removal relative to 2p removal. A similar suppression of the 2p removal cross-section was observed in the breakup of 17 C, where also only the lowenergy tail of the momentum distribution was measured [26].…”

Section: Discussionsupporting

confidence: 53%

“…[5] in order to explain our decay energy spectrum. In addition, α removal has also been suggested to explain the population of 12 Be from a 55 MeV/nucleon 17 C beam incident on a beryllium target [26]. The α-removal 3-body distribution for 10 He was derived from the same model used to explain the removal from 11 Li as presented in Ref.…”

Section: Discussionmentioning

confidence: 99%

“…Since the cross section for 2p2n removal is estimated to be at least an order of magnitude smaller than the 2p removal reaction [26,27] we consider the possibility of α removal. This process was proposed in Ref.…”

Section: Discussionmentioning

confidence: 99%

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Further insights into the reactionBe14(CH2,X)He10
Jones
¹
,
Kohley
²
,
Baumann
³

et al. 2015
Phys. Rev. C
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A previously published measurement of the reaction of a 59 MeV/nucleon 14 Be beam on a deuterated polyethylene target was further analyzed to search for 12 He as well as initial state effects in the population of the 10 He ground state. No evidence for either was found. A lower limit of about 1 MeV was determined for a possible resonance in 12 He. In addition, the 3-body decay energy spectrum of 10 He could not be described by a reaction mechanism calculation based on the halo structure of the initial 14 Be assuming a direct α-particle removal reaction.

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Section: Discussionsupporting

confidence: 53%

Section: Discussionmentioning

confidence: 99%

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Further insights into the reactionBe14(CH2,X)He10
Jones
¹
,
Kohley
²
,
Baumann
³

et al. 2015
Phys. Rev. C
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9
0
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0
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“…al. proposed that there is a small chance of finding the 1d 3/2 state in 15 Be at 2.69 MeV [34]. Including this state, keeping the 1d 5/2 at 1.8 MeV, and using the same s-wave as models D and D3B, the ground state energy of 16 Be was at 1.06 MeV, without including a three-body interaction.…”

Section: Discussionmentioning

confidence: 99%

Three-body model for the two-neutron emission ofBe16

2017

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Background: While diproton decay was first theorized in 1960 and first measured in 2002, it was first observed only in 2012.The measurement of 14 Be in coincidence with two neutrons suggests that 16 Be does decay through the simultaneous emission of two strongly correlated neutrons.Purpose: In this work, we construct a full three-body model of 16 Be (as 14 Be + n + n) in order to investigate its configuration in the continuum and in particular the structure of its ground state.Method: In order to describe the three-body system, effective n-14 Be potentials were constructed, constrained by the experimental information on 15 Be. The hyperspherical R-matrix method was used to solve the three-body scattering problem, and the resonance energy of 16 Be was extracted from a phase shift analysis.Results: In order to reproduce the experimental resonance energy of 16 Be within this three-body model, a three-body interaction was needed. For extracting the width of the ground state of 16 Be, we use the full width at half maximum of the derivative of the three-body phase shifts and the width of the three-body elastic scattering cross section. Conclusions:Our results confirm a dineutron structure for 16 Be, dependent on the internal structure of the subsystem 15 Be.

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“…[8]. A similar method was used to search for 3n events coming from 15 Be in another study [9]. Since a 4n event will induce more scattering than a 2n event, a simultaneous fit across several multiplicities is sensitive to the number of neutrons emitted.…”

Section: Discussionmentioning

confidence: 99%

Search for 4ncontributions in the reaction¹⁴Be(CH₂,X)¹⁰He

Jones

Kohley

Baumann

et al. 2016

EPJ Web of Conferences

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Search for unboundBe15states in the3n+Be12

Cited by 12 publications

References 24 publications

Further insights into the reactionBe14(CH2,X)He10
Jones
¹
,
Kohley
²
,
Baumann
³

et al. 2015
Phys. Rev. C
Self Cite
9
0
1
0
View full text Add to dashboard Cite

Further insights into the reactionBe14(CH2,X)He10
Jones
¹
,
Kohley
²
,
Baumann
³

et al. 2015
Phys. Rev. C
Self Cite
9
0
1
0
View full text Add to dashboard Cite

Three-body model for the two-neutron emission ofBe16

Search for 4ncontributions in the reaction¹⁴Be(CH₂,X)¹⁰He

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Search for unboundBe15states in the3n+Be12

Cited by 12 publications

References 24 publications

Further insights into the reactionBe14(CH2,X)He10Jones1, Kohley2, Baumann3 et al. 2015Phys. Rev. CSelf Cite9010View full textAdd to dashboardCite

Further insights into the reactionBe14(CH2,X)He10Jones1, Kohley2, Baumann3 et al. 2015Phys. Rev. CSelf Cite9010View full textAdd to dashboardCite

Three-body model for the two-neutron emission ofBe16

Search for 4ncontributions in the reaction14Be(CH2,X)10He

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About

Further insights into the reactionBe14(CH2,X)He10
Jones
¹
,
Kohley
²
,
Baumann
³

et al. 2015
Phys. Rev. C
Self Cite
9
0
1
0
View full text Add to dashboard Cite

Further insights into the reactionBe14(CH2,X)He10
Jones
¹
,
Kohley
²
,
Baumann
³

et al. 2015
Phys. Rev. C
Self Cite
9
0
1
0
View full text Add to dashboard Cite

Search for 4ncontributions in the reaction¹⁴Be(CH₂,X)¹⁰He