Direct Observation of Proton Emission in Be11

Ayyad, Y.; Olaizola, B.; Mittig, W.; Potel, Gregory Aguilar; 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.; Bowry, M.; Cortesi, M.; Dalitz, C.; Dunling, E.; Garnsworthy, A. B.; Holl, M.; Kootte, B.; Leach, K. G.; Randhawa, J. S.; Saito, Y.; Santamaria, C.; Šiurytė, P.; Svensson, C. E.; Umashankar, R.; Watwood, N.; Yates, D.

doi:10.1103/PhysRevLett.123.082501

Direct Observation of Proton Emission in ${}^{11}{Be}$

Journal Article · Thu Aug 22 00:00:00 EDT 2019 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.123.082501· OSTI ID:1606205

Ayyad, Y. ^[1]; Olaizola, B. ^[2]; Mittig, W. ^[3]; Potel, Gregory Aguilar ^[4]; Zelevinsky, V. ^[3]; Horoi, M. ^[5]; Beceiro-Novo, S. ^[3]; Alcorta, M. ^[2]; Andreoiu, C. ^[6]; Ahn, T. ^[7]; Anholm, M. ^[8]; Atar, L. ^[9]; Babu, A. ^[2]; Bazin, D. ^[3]; Bernier, N. ^[10]; Bhattacharjee, S. S. ^[2]; Bowry, M. ^[2]; Bowry, M. ^[2]; Cortesi, M. ^[3]; Dalitz, C. ^[11] more »

Michigan State Univ., East Lansing, MI (United States); Lawrence Livermore National Laboratory
TRIUMF, Vancouver, BC (Canada)
Michigan State Univ., East Lansing, MI (United States)
Michigan State Univ., East Lansing, MI (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Central Michigan Univ., Mount Pleasant, MI (United States)
Simon Fraser Univ., Burnaby, BC (Canada)
Univ. of Notre Dame, IN (United States)
TRIUMF, Vancouver, BC (Canada); Univ. of Manitoba, Winnipeg (Canada)
Univ. of Guelph, ON (Canada)
TRIUMF, Vancouver, BC (Canada); Univ. of British Columbia, Vancouver, BC (Canada)
Niederrhein Univ. of Applied Sciences (Germany)
TRIUMF, Vancouver, BC (Canada); Univ. of York (United Kingdom)
TRIUMF, Vancouver, BC (Canada); Saint Marys Univ., Halifax, NS (Canada)
Colorado School of Mines, Golden, CO (United States)
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
TRIUMF, Vancouver, BC (Canada); Univ. of Surrey, Guildford (United Kingdom)

The rare

β^{-} p^{+}

decay was observed in

{}_{11}{Be}

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 other theoretical model predicted. This can be explained by the presence of a narrow resonance in

{}_{11}B

above the proton separation energy.

View Accepted Manuscript (DOE)

Research Organization:: Colorado School of Mines, Golden, CO (United States); Michigan State Univ., East Lansing, MI (United States)

Sponsoring Organization:: National Research Council Canada; National Science Foundation (NSF); Natural Sciences and Engineering Research Council of Canada; Natural Sciences and Engineering Research Council of Canada; USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)

Grant/Contract Number:: SC0013617; SC0017649

OSTI ID:: 1606205

Alternate ID(s):: OSTI ID: 1558703

Journal Information:: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 8 Vol. 123; ISSN 0031-9007; ISSN PRLTAO

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited By (1)

Convenient Location of a Near-Threshold Proton-Emitting Resonance in B 11 Okołowicz, J.; Płoszajczak, M.; Nazarewicz, W. Physical Review Letters, Vol. 124, Issue 4 https://doi.org/10.1103/physrevlett.124.042502	journal	January 2020

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delayed particle emission
−p+
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