Direct observation of proton emission in 11Be

Y. Ayyad; B. Olaizola; W. Mittig; G. Potel; V. Zelevinsky; M. Horoi; S. Beceiro-Novo; M. Alcorta; C. Andreoiu; T. Ahn; M. Anholm; L. Atar; A. Babu; D. Bazin; N. Bernier; S.S. Bhattacharjee; M. Bowry; R. Caballero-Folch; M. Cortesi; C. Dalitz; E. Dunling; A.B. Garnsworthy; M. Holl; B. Kootte; K.G. Leach; J.S. Randhawa; Y. Saito; C. Santamaria; P. Šiurytė; C.E. Svensson; R. Umashankar; N. Watwood; D. Yates

doi:10.1103/PhysRevLett.123.082501

Direct observation of proton emission in ¹¹Be

Y. Ayyad^*, B. Olaizola, W. Mittig, G. Potel, V. Zelevinsky, M. Horoi, S. Beceiro-Novo, M. Alcorta, C. Andreoiu, T. Ahn, M. Anholm, L. Atar, A. Babu, D. Bazin, N. Bernier, S.S. Bhattacharjee, M. Bowry, R. Caballero-Folch, M. Cortesi, C. DalitzE. Dunling, A.B. Garnsworthy, M. Holl, B. Kootte, K.G. Leach, J.S. Randhawa, Y. Saito, C. Santamaria, P. Šiurytė, C.E. Svensson, R. Umashankar, N. Watwood, D. Yates

^*Corresponding author for this work

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

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Abstract

The elusive β^-p⁺ decay was observed in ¹¹Be by directly measuring the emitted protons and their energy distribution for the first time with the prototype Active Target Time Projection Chamber in an experiment performed at ISAC-TRIUMF. The measured β^-p⁺ branching ratio is orders of magnitude larger than any previous theoretical model predicted. This can be explained by the presence of a narrow resonance in ¹¹B above the proton separation energy.

Original language	English
Article number	082501
Number of pages	5
Journal	Physical Review Letters
Volume	123
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevLett.123.082501
Publication status	Published - 22 Aug 2019
Externally published	Yes

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2019 08 22 Ayyad et al Proton finalFinal published version, 240 KB

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Ayyad, Y., Olaizola, B., Mittig, W., Potel, G., Zelevinsky, V., Horoi, M., Beceiro-Novo, S., Alcorta, M., Andreoiu, C., Ahn, T., Anholm, M., Atar, L., Babu, A., Bazin, D., Bernier, N., Bhattacharjee, S. S., Bowry, M., Caballero-Folch, R., Cortesi, M., ... Yates, D. (2019). Direct observation of proton emission in ¹¹Be. Physical Review Letters, 123(8), Article 082501. https://doi.org/10.1103/PhysRevLett.123.082501

@article{89f8b1a7eaca4e44abe0e9d8e6dd8b88,

title = "Direct observation of proton emission in 11Be",

abstract = "The elusive β-p+ decay was observed in 11Be by directly measuring the emitted protons and their energy distribution for the first time with the prototype Active Target Time Projection Chamber in an experiment performed at ISAC-TRIUMF. The measured β-p+ branching ratio is orders of magnitude larger than any previous theoretical model predicted. This can be explained by the presence of a narrow resonance in 11B above the proton separation energy.",

author = "Y. Ayyad and B. Olaizola and W. Mittig and G. Potel and V. Zelevinsky and M. Horoi and S. Beceiro-Novo and M. Alcorta and C. Andreoiu and T. Ahn and M. Anholm and L. Atar and A. Babu and D. Bazin and N. Bernier and S.S. Bhattacharjee and M. Bowry and R. Caballero-Folch and M. Cortesi and C. Dalitz and E. Dunling and A.B. Garnsworthy and M. Holl and B. Kootte and K.G. Leach and J.S. Randhawa and Y. Saito and C. Santamaria and P. {\v S}iurytė and C.E. Svensson and R. Umashankar and N. Watwood and D. Yates",

year = "2019",

month = aug,

day = "22",

doi = "10.1103/PhysRevLett.123.082501",

language = "English",

volume = "123",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "8",

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Ayyad, Y, Olaizola, B, Mittig, W, Potel, G, Zelevinsky, V, Horoi, M, Beceiro-Novo, S, Alcorta, M, Andreoiu, C, Ahn, T, Anholm, M, Atar, L, Babu, A, Bazin, D, Bernier, N, Bhattacharjee, SS, Bowry, M, Caballero-Folch, R, Cortesi, M, Dalitz, C, Dunling, E, Garnsworthy, AB, Holl, M, Kootte, B, Leach, KG, Randhawa, JS, Saito, Y, Santamaria, C, Šiurytė, P, Svensson, CE, Umashankar, R, Watwood, N & Yates, D 2019, 'Direct observation of proton emission in ¹¹Be', Physical Review Letters, vol. 123, no. 8, 082501. https://doi.org/10.1103/PhysRevLett.123.082501

TY - JOUR

T1 - Direct observation of proton emission in 11Be

AU - Ayyad, Y.

AU - Olaizola, B.

AU - Mittig, W.

AU - Potel, G.

AU - Zelevinsky, V.

AU - Horoi, M.

AU - Beceiro-Novo, S.

AU - Alcorta, M.

AU - Andreoiu, C.

AU - Ahn, T.

AU - Anholm, M.

AU - Atar, L.

AU - Babu, A.

AU - Bazin, D.

AU - Bernier, N.

AU - Bhattacharjee, S.S.

AU - Bowry, M.

AU - Caballero-Folch, R.

AU - Cortesi, M.

AU - Dalitz, C.

AU - Dunling, E.

AU - Garnsworthy, A.B.

AU - Holl, M.

AU - Kootte, B.

AU - Leach, K.G.

AU - Randhawa, J.S.

AU - Saito, Y.

AU - Santamaria, C.

AU - Šiurytė, P.

AU - Svensson, C.E.

AU - Umashankar, R.

AU - Watwood, N.

AU - Yates, D.

PY - 2019/8/22

Y1 - 2019/8/22

N2 - The elusive β-p+ decay was observed in 11Be by directly measuring the emitted protons and their energy distribution for the first time with the prototype Active Target Time Projection Chamber in an experiment performed at ISAC-TRIUMF. The measured β-p+ branching ratio is orders of magnitude larger than any previous theoretical model predicted. This can be explained by the presence of a narrow resonance in 11B above the proton separation energy.

AB - The elusive β-p+ decay was observed in 11Be by directly measuring the emitted protons and their energy distribution for the first time with the prototype Active Target Time Projection Chamber in an experiment performed at ISAC-TRIUMF. The measured β-p+ branching ratio is orders of magnitude larger than any previous theoretical model predicted. This can be explained by the presence of a narrow resonance in 11B above the proton separation energy.

U2 - 10.1103/PhysRevLett.123.082501

DO - 10.1103/PhysRevLett.123.082501

M3 - Article

SN - 0031-9007

VL - 123

JO - Physical Review Letters

JF - Physical Review Letters

IS - 8

M1 - 082501

ER -

Direct observation of proton emission in 11Be

Abstract

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Direct observation of proton emission in ¹¹Be