Scattering of the Halo Nucleus Be 11 on Au 197 at Energies around the Coulomb Barrier

V. Pesudo; M. J.G. Borge; A. M. Moro; J. A. Lay; E. Nácher; J. Gómez-Camacho; O. Tengblad; L. Acosta; M. Alcorta; M. A.G. Alvarez; C. Andreoiu; P. C. Bender; R. Braid; M. Cubero; A. Di Pietro; J. P. Fernández-García; P. Figuera; M. Fisichella; B. R. Fulton; A. B. Garnsworthy; G. Hackman; U. Hager; O. S. Kirsebom; K. Kuhn; M. Lattuada; G. Marquínez-Durán; I. Martel; D. Miller; M. Moukaddam; P. D. O'Malley; A. Perea; M. M. Rajabali; A. M. Sánchez-Benítez; F. Sarazin; V. Scuderi; C. E. Svensson; C. Unsworth; Z. M. Wang

doi:10.1103/PhysRevLett.118.152502

Scattering of the Halo Nucleus Be 11 on Au 197 at Energies around the Coulomb Barrier

V. Pesudo, M. J.G. Borge, A. M. Moro, J. A. Lay, E. Nácher, J. Gómez-Camacho, O. Tengblad, L. Acosta, M. Alcorta, M. A.G. Alvarez, C. Andreoiu, P. C. Bender, R. Braid, M. Cubero, A. Di Pietro, J. P. Fernández-García, P. Figuera, M. Fisichella, B. R. Fulton, A. B. GarnsworthyG. Hackman, U. Hager, O. S. Kirsebom, K. Kuhn, M. Lattuada, G. Marquínez-Durán, I. Martel, D. Miller, M. Moukaddam, P. D. O'Malley, A. Perea, M. M. Rajabali, A. M. Sánchez-Benítez, F. Sarazin, V. Scuderi, C. E. Svensson, C. Unsworth, Z. M. Wang

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Abstract

Angular distributions of the elastic, inelastic, and breakup cross sections of the halo nucleus Be11 on Au197 were measured at energies below (Elab=31.9 MeV) and around (39.6 MeV) the Coulomb barrier. These three channels were unambiguously separated for the first time for reactions of Be11 on a high-Z target at low energies. The experiment was performed at TRIUMF (Vancouver, Canada). The differential cross sections were compared with three different calculations: semiclassical, inert-core continuum-coupled-channels and continuum-coupled-channels ones with including core deformation. These results show conclusively that the elastic and inelastic differential cross sections can only be accounted for if core-excited admixtures are taken into account. The cross sections for these channels strongly depend on the B(E1) distribution in Be11, and the reaction mechanism is sensitive to the entanglement of core and halo degrees of freedom in Be11.

Original language	English
Article number	152502
Number of pages	6
Journal	Physical Review Letters
Volume	118
Issue number	15
Early online date	12 Apr 2017
DOIs	https://doi.org/10.1103/PhysRevLett.118.152502
Publication status	Published - 14 Apr 2017

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10.1103/PhysRevLett.118.152502

PhysRevLett.118.152502Final published version, 468 KBLicence: CC BY

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Pesudo, V., Borge, M. J. G., Moro, A. M., Lay, J. A., Nácher, E., Gómez-Camacho, J., Tengblad, O., Acosta, L., Alcorta, M., Alvarez, M. A. G., Andreoiu, C., Bender, P. C., Braid, R., Cubero, M., Di Pietro, A., Fernández-García, J. P., Figuera, P., Fisichella, M., Fulton, B. R., ... Wang, Z. M. (2017). Scattering of the Halo Nucleus Be 11 on Au 197 at Energies around the Coulomb Barrier. Physical Review Letters, 118(15), Article 152502. https://doi.org/10.1103/PhysRevLett.118.152502

@article{7d361383c9b64343ae4e23b338a862f3,

title = "Scattering of the Halo Nucleus Be 11 on Au 197 at Energies around the Coulomb Barrier",

abstract = "Angular distributions of the elastic, inelastic, and breakup cross sections of the halo nucleus Be11 on Au197 were measured at energies below (Elab=31.9 MeV) and around (39.6 MeV) the Coulomb barrier. These three channels were unambiguously separated for the first time for reactions of Be11 on a high-Z target at low energies. The experiment was performed at TRIUMF (Vancouver, Canada). The differential cross sections were compared with three different calculations: semiclassical, inert-core continuum-coupled-channels and continuum-coupled-channels ones with including core deformation. These results show conclusively that the elastic and inelastic differential cross sections can only be accounted for if core-excited admixtures are taken into account. The cross sections for these channels strongly depend on the B(E1) distribution in Be11, and the reaction mechanism is sensitive to the entanglement of core and halo degrees of freedom in Be11.",

author = "V. Pesudo and Borge, {M. J.G.} and Moro, {A. M.} and Lay, {J. A.} and E. N{\'a}cher and J. G{\'o}mez-Camacho and O. Tengblad and L. Acosta and M. Alcorta and Alvarez, {M. A.G.} and C. Andreoiu and Bender, {P. C.} and R. Braid and M. Cubero and {Di Pietro}, A. and Fern{\'a}ndez-Garc{\'i}a, {J. P.} and P. Figuera and M. Fisichella and Fulton, {B. R.} and Garnsworthy, {A. B.} and G. Hackman and U. Hager and Kirsebom, {O. S.} and K. Kuhn and M. Lattuada and G. Marqu{\'i}nez-Dur{\'a}n and I. Martel and D. Miller and M. Moukaddam and O'Malley, {P. D.} and A. Perea and Rajabali, {M. M.} and S{\'a}nchez-Ben{\'i}tez, {A. M.} and F. Sarazin and V. Scuderi and Svensson, {C. E.} and C. Unsworth and Wang, {Z. M.}",

year = "2017",

month = apr,

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doi = "10.1103/PhysRevLett.118.152502",

language = "English",

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Pesudo, V, Borge, MJG, Moro, AM, Lay, JA, Nácher, E, Gómez-Camacho, J, Tengblad, O, Acosta, L, Alcorta, M, Alvarez, MAG, Andreoiu, C, Bender, PC, Braid, R, Cubero, M, Di Pietro, A, Fernández-García, JP, Figuera, P, Fisichella, M, Fulton, BR, Garnsworthy, AB, Hackman, G, Hager, U, Kirsebom, OS, Kuhn, K, Lattuada, M, Marquínez-Durán, G, Martel, I, Miller, D, Moukaddam, M, O'Malley, PD, Perea, A, Rajabali, MM, Sánchez-Benítez, AM, Sarazin, F, Scuderi, V, Svensson, CE, Unsworth, C & Wang, ZM 2017, 'Scattering of the Halo Nucleus Be 11 on Au 197 at Energies around the Coulomb Barrier', Physical Review Letters, vol. 118, no. 15, 152502. https://doi.org/10.1103/PhysRevLett.118.152502

TY - JOUR

T1 - Scattering of the Halo Nucleus Be 11 on Au 197 at Energies around the Coulomb Barrier

AU - Pesudo, V.

AU - Borge, M. J.G.

AU - Moro, A. M.

AU - Lay, J. A.

AU - Nácher, E.

AU - Gómez-Camacho, J.

AU - Tengblad, O.

AU - Acosta, L.

AU - Alcorta, M.

AU - Alvarez, M. A.G.

AU - Andreoiu, C.

AU - Bender, P. C.

AU - Braid, R.

AU - Cubero, M.

AU - Di Pietro, A.

AU - Fernández-García, J. P.

AU - Figuera, P.

AU - Fisichella, M.

AU - Fulton, B. R.

AU - Garnsworthy, A. B.

AU - Hackman, G.

AU - Hager, U.

AU - Kirsebom, O. S.

AU - Kuhn, K.

AU - Lattuada, M.

AU - Marquínez-Durán, G.

AU - Martel, I.

AU - Miller, D.

AU - Moukaddam, M.

AU - O'Malley, P. D.

AU - Perea, A.

AU - Rajabali, M. M.

AU - Sánchez-Benítez, A. M.

AU - Sarazin, F.

AU - Scuderi, V.

AU - Svensson, C. E.

AU - Unsworth, C.

AU - Wang, Z. M.

PY - 2017/4/14

Y1 - 2017/4/14

N2 - Angular distributions of the elastic, inelastic, and breakup cross sections of the halo nucleus Be11 on Au197 were measured at energies below (Elab=31.9 MeV) and around (39.6 MeV) the Coulomb barrier. These three channels were unambiguously separated for the first time for reactions of Be11 on a high-Z target at low energies. The experiment was performed at TRIUMF (Vancouver, Canada). The differential cross sections were compared with three different calculations: semiclassical, inert-core continuum-coupled-channels and continuum-coupled-channels ones with including core deformation. These results show conclusively that the elastic and inelastic differential cross sections can only be accounted for if core-excited admixtures are taken into account. The cross sections for these channels strongly depend on the B(E1) distribution in Be11, and the reaction mechanism is sensitive to the entanglement of core and halo degrees of freedom in Be11.

AB - Angular distributions of the elastic, inelastic, and breakup cross sections of the halo nucleus Be11 on Au197 were measured at energies below (Elab=31.9 MeV) and around (39.6 MeV) the Coulomb barrier. These three channels were unambiguously separated for the first time for reactions of Be11 on a high-Z target at low energies. The experiment was performed at TRIUMF (Vancouver, Canada). The differential cross sections were compared with three different calculations: semiclassical, inert-core continuum-coupled-channels and continuum-coupled-channels ones with including core deformation. These results show conclusively that the elastic and inelastic differential cross sections can only be accounted for if core-excited admixtures are taken into account. The cross sections for these channels strongly depend on the B(E1) distribution in Be11, and the reaction mechanism is sensitive to the entanglement of core and halo degrees of freedom in Be11.

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U2 - 10.1103/PhysRevLett.118.152502

DO - 10.1103/PhysRevLett.118.152502

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VL - 118

JO - Physical Review Letters

JF - Physical Review Letters

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ER -

Scattering of the Halo Nucleus Be 11 on Au 197 at Energies around the Coulomb Barrier

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Brian Robert Fulton, Ch. Phys., F. Inst. Phys.

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Scattering of the Halo Nucleus Be 11 on Au 197 at Energies around the Coulomb Barrier

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Brian Robert Fulton, Ch. Phys., F. Inst. Phys.

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