Halo structure of Be-14

M  Labiche; N A  Orr; F M  Marques; J C  Angelique; L  Axelsson; B  Benoit; U C  Bergmann; M J G  Borge; W N  Catford; S P G  Chappell; N M  Clarke; G  Costa; N  Curtis; A  D'Arrigo; E D  Brennand; O  Dorvaux; G  Fazio; M  Freer; B R  Fulton; G  Giardina; S  Grevy; D  Guillemaud-Mueller; F  Hanappe; B  Heusch; K L  Jones; B  Jonson; C  Le Brun; S  Leenhardt; M  Lewitowicz; K  Markenroth; A C  Mueller; T  Nilsson; A  Ninane; G  Nyman; F  de Oliveira; I  Piqueras; K  Riisager; M G  Saint Laurent; F  Sarazin; S M  Singer; O  Sorlin; L  Stuttge

Halo structure of Be-14

M Labiche, N A Orr, F M Marques, J C Angelique, L Axelsson, B Benoit, U C Bergmann, M J G Borge, W N Catford, S P G Chappell, N M Clarke, G Costa, N Curtis, A D'Arrigo, E D Brennand, O Dorvaux, G Fazio, M Freer, B R Fulton, G GiardinaS Grevy, D Guillemaud-Mueller, F Hanappe, B Heusch, K L Jones, B Jonson, C Le Brun, S Leenhardt, M Lewitowicz, K Markenroth, A C Mueller, T Nilsson, A Ninane, G Nyman, F de Oliveira, I Piqueras, K Riisager, M G Saint Laurent, F Sarazin, S M Singer, O Sorlin, L Stuttge

Research output: Contribution to journal › Article › peer-review

Abstract

The two-neutron halo nucleus Be-14 has been investigated in a kinematically complete measurement of the fragments (Be-12 and neutrons) produced in dissociation at 35 MeV/nucleon on C and Pb targets. Two-neutron removal cross sections, neutron angular distributions, and invariant mass spectra were measured, and the contributions from electromagnetic dissociation (EMD) were deduced. Comparison with three-body model calculations suggests that the halo wave function contains a large nu (2s(1/2))(2) admixture. The EMD invariant mass spectrum exhibited enhanced strength near threshold consistent with a nonresonant soft-dipole excitation.

Original language	English
Pages (from-to)	600-603
Number of pages	4
Journal	Physical Review Letters
Volume	86
Issue number	4
Publication status	Published - 22 Jan 2001

Cite this

@article{df637265441648c0ad8d9f120c670561,

title = "Halo structure of Be-14",

abstract = "The two-neutron halo nucleus Be-14 has been investigated in a kinematically complete measurement of the fragments (Be-12 and neutrons) produced in dissociation at 35 MeV/nucleon on C and Pb targets. Two-neutron removal cross sections, neutron angular distributions, and invariant mass spectra were measured, and the contributions from electromagnetic dissociation (EMD) were deduced. Comparison with three-body model calculations suggests that the halo wave function contains a large nu (2s(1/2))(2) admixture. The EMD invariant mass spectrum exhibited enhanced strength near threshold consistent with a nonresonant soft-dipole excitation.",

author = "M Labiche and Orr, {N A} and Marques, {F M} and Angelique, {J C} and L Axelsson and B Benoit and Bergmann, {U C} and Borge, {M J G} and Catford, {W N} and Chappell, {S P G} and Clarke, {N M} and G Costa and N Curtis and A D'Arrigo and Brennand, {E D} and O Dorvaux and G Fazio and M Freer and Fulton, {B R} and G Giardina and S Grevy and D Guillemaud-Mueller and F Hanappe and B Heusch and Jones, {K L} and B Jonson and {Le Brun}, C and S Leenhardt and M Lewitowicz and K Markenroth and Mueller, {A C} and T Nilsson and A Ninane and G Nyman and {de Oliveira}, F and I Piqueras and K Riisager and {Saint Laurent}, {M G} and F Sarazin and Singer, {S M} and O Sorlin and L Stuttge",

year = "2001",

month = jan,

day = "22",

language = "English",

volume = "86",

pages = "600--603",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "4",

}

Labiche, M, Orr, NA, Marques, FM, Angelique, JC, Axelsson, L, Benoit, B, Bergmann, UC, Borge, MJG, Catford, WN, Chappell, SPG, Clarke, NM, Costa, G, Curtis, N, D'Arrigo, A, Brennand, ED, Dorvaux, O, Fazio, G, Freer, M, Fulton, BR, Giardina, G, Grevy, S, Guillemaud-Mueller, D, Hanappe, F, Heusch, B, Jones, KL, Jonson, B, Le Brun, C, Leenhardt, S, Lewitowicz, M, Markenroth, K, Mueller, AC, Nilsson, T, Ninane, A, Nyman, G, de Oliveira, F, Piqueras, I, Riisager, K, Saint Laurent, MG, Sarazin, F, Singer, SM, Sorlin, O & Stuttge, L 2001, 'Halo structure of Be-14', Physical Review Letters, vol. 86, no. 4, pp. 600-603.

TY - JOUR

T1 - Halo structure of Be-14

AU - Labiche, M

AU - Orr, N A

AU - Marques, F M

AU - Angelique, J C

AU - Axelsson, L

AU - Benoit, B

AU - Bergmann, U C

AU - Borge, M J G

AU - Catford, W N

AU - Chappell, S P G

AU - Clarke, N M

AU - Costa, G

AU - Curtis, N

AU - D'Arrigo, A

AU - Brennand, E D

AU - Dorvaux, O

AU - Fazio, G

AU - Freer, M

AU - Fulton, B R

AU - Giardina, G

AU - Grevy, S

AU - Guillemaud-Mueller, D

AU - Hanappe, F

AU - Heusch, B

AU - Jones, K L

AU - Jonson, B

AU - Le Brun, C

AU - Leenhardt, S

AU - Lewitowicz, M

AU - Markenroth, K

AU - Mueller, A C

AU - Nilsson, T

AU - Ninane, A

AU - Nyman, G

AU - de Oliveira, F

AU - Piqueras, I

AU - Riisager, K

AU - Saint Laurent, M G

AU - Sarazin, F

AU - Singer, S M

AU - Sorlin, O

AU - Stuttge, L

PY - 2001/1/22

Y1 - 2001/1/22

N2 - The two-neutron halo nucleus Be-14 has been investigated in a kinematically complete measurement of the fragments (Be-12 and neutrons) produced in dissociation at 35 MeV/nucleon on C and Pb targets. Two-neutron removal cross sections, neutron angular distributions, and invariant mass spectra were measured, and the contributions from electromagnetic dissociation (EMD) were deduced. Comparison with three-body model calculations suggests that the halo wave function contains a large nu (2s(1/2))(2) admixture. The EMD invariant mass spectrum exhibited enhanced strength near threshold consistent with a nonresonant soft-dipole excitation.

AB - The two-neutron halo nucleus Be-14 has been investigated in a kinematically complete measurement of the fragments (Be-12 and neutrons) produced in dissociation at 35 MeV/nucleon on C and Pb targets. Two-neutron removal cross sections, neutron angular distributions, and invariant mass spectra were measured, and the contributions from electromagnetic dissociation (EMD) were deduced. Comparison with three-body model calculations suggests that the halo wave function contains a large nu (2s(1/2))(2) admixture. The EMD invariant mass spectrum exhibited enhanced strength near threshold consistent with a nonresonant soft-dipole excitation.

M3 - Article

SN - 0031-9007

VL - 86

SP - 600

EP - 603

JO - Physical Review Letters

JF - Physical Review Letters

IS - 4

ER -