Precision measurement of the neutron β-decay asymmetry

M. P. Mendenhall; R. W. Pattie; Y. Bagdasarova; D. B. Berguno; L. J. Broussard; R. Carr; S. Currie; X. Ding; B. W. Filippone; A. García; P. Geltenbort; K. P. Hickerson; J. Hoagland; A. T. Holley; R. Hong; T. M. Ito; A. Knecht; C. Y. Liu; J. L. Liu; M. Makela; R. R. Mammei; J. W. Martin; D. Melconian; S. D. Moore; C. L. Morris; A. Pérez Galván; R. Picker; M. L. Pitt; B. Plaster; J. C. Ramsey; R. Rios; A. Saunders; S. J. Seestrom; E. I. Sharapov; W. E. Sondheim; E. Tatar; R. B. Vogelaar; B. Vorndick; C. Wrede; A. R. Young; B. A. Zeck

doi:10.1103/PhysRevC.87.032501

Precision measurement of the neutron β-decay asymmetry

M. P. Mendenhall, R. W. Pattie, Y. Bagdasarova, D. B. Berguno, L. J. Broussard, R. Carr, S. Currie, X. Ding, B. W. Filippone, A. García, P. Geltenbort, K. P. Hickerson, J. Hoagland, A. T. Holley, R. Hong, T. M. Ito, A. Knecht, C. Y. Liu, J. L. Liu, M. MakelaR. R. Mammei, J. W. Martin, D. Melconian, S. D. Moore, C. L. Morris, A. Pérez Galván, R. Picker, M. L. Pitt, B. Plaster, J. C. Ramsey, R. Rios, A. Saunders, S. J. Seestrom, E. I. Sharapov, W. E. Sondheim, E. Tatar, R. B. Vogelaar, B. Vorndick, C. Wrede, A. R. Young, B. A. Zeck

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Abstract

A new measurement of the neutron β-decay asymmetry A₀ has been carried out by the UCNA Collaboration using polarized ultracold neutrons (UCNs) from the solid deuterium UCN source at the Los Alamos Neutron Science Center. Improvements in the experiment have led to reductions in both statistical and systematic uncertainties leading to A₀=-0.11954( _55)stat(_98)syst, corresponding to the ratio of axial-vector to vector coupling λ≡g_A/g _V=-1.2756(30).

Original language	English
Article number	032501
Journal	Physical Review C - Nuclear Physics
Volume	87
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevC.87.032501
State	Published - Mar 25 2013

Funding

Funders	Funder number
U.S. Department of Energy Chinese Academy of Sciences Guangzhou Municipal Science and Technology Project Oak Ridge National Laboratory Extreme Science and Engineering Discovery Environment National Science Foundation National Energy Research Scientific Computing Center National Natural Science Foundation of China	1205977, 0855538, 0653222

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1103/PhysRevC.87.032501

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Mendenhall, M. P., Pattie, R. W., Bagdasarova, Y., Berguno, D. B., Broussard, L. J., Carr, R., Currie, S., Ding, X., Filippone, B. W., García, A., Geltenbort, P., Hickerson, K. P., Hoagland, J., Holley, A. T., Hong, R., Ito, T. M., Knecht, A., Liu, C. Y., Liu, J. L., ... Zeck, B. A. (2013). Precision measurement of the neutron β-decay asymmetry. Physical Review C - Nuclear Physics, 87(3), Article 032501. https://doi.org/10.1103/PhysRevC.87.032501

@article{7db3e273a26e4bcbb396a739dd212dc1,

title = "Precision measurement of the neutron β-decay asymmetry",

abstract = "A new measurement of the neutron β-decay asymmetry A0 has been carried out by the UCNA Collaboration using polarized ultracold neutrons (UCNs) from the solid deuterium UCN source at the Los Alamos Neutron Science Center. Improvements in the experiment have led to reductions in both statistical and systematic uncertainties leading to A0=-0.11954( 55)stat(98)syst, corresponding to the ratio of axial-vector to vector coupling λ≡gA/g V=-1.2756(30).",

author = "Mendenhall, \{M. P.\} and Pattie, \{R. W.\} and Y. Bagdasarova and Berguno, \{D. B.\} and Broussard, \{L. J.\} and R. Carr and S. Currie and X. Ding and Filippone, \{B. W.\} and A. Garc{\'i}a and P. Geltenbort and Hickerson, \{K. P.\} and J. Hoagland and Holley, \{A. T.\} and R. Hong and Ito, \{T. M.\} and A. Knecht and Liu, \{C. Y.\} and Liu, \{J. L.\} and M. Makela and Mammei, \{R. R.\} and Martin, \{J. W.\} and D. Melconian and Moore, \{S. D.\} and Morris, \{C. L.\} and \{P{\'e}rez Galv{\'a}n\}, A. and R. Picker and Pitt, \{M. L.\} and B. Plaster and Ramsey, \{J. C.\} and R. Rios and A. Saunders and Seestrom, \{S. J.\} and Sharapov, \{E. I.\} and Sondheim, \{W. E.\} and E. Tatar and Vogelaar, \{R. B.\} and B. Vorndick and C. Wrede and Young, \{A. R.\} and Zeck, \{B. A.\}",

year = "2013",

month = mar,

day = "25",

doi = "10.1103/PhysRevC.87.032501",

language = "English",

volume = "87",

number = "3",

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Mendenhall, MP, Pattie, RW, Bagdasarova, Y, Berguno, DB, Broussard, LJ, Carr, R, Currie, S, Ding, X, Filippone, BW, García, A, Geltenbort, P, Hickerson, KP, Hoagland, J, Holley, AT, Hong, R, Ito, TM, Knecht, A, Liu, CY, Liu, JL, Makela, M, Mammei, RR, Martin, JW, Melconian, D, Moore, SD, Morris, CL, Pérez Galván, A, Picker, R, Pitt, ML, Plaster, B, Ramsey, JC, Rios, R, Saunders, A, Seestrom, SJ, Sharapov, EI, Sondheim, WE, Tatar, E, Vogelaar, RB, Vorndick, B, Wrede, C, Young, AR & Zeck, BA 2013, 'Precision measurement of the neutron β-decay asymmetry', Physical Review C - Nuclear Physics, vol. 87, no. 3, 032501. https://doi.org/10.1103/PhysRevC.87.032501

TY - JOUR

T1 - Precision measurement of the neutron β-decay asymmetry

AU - Mendenhall, M. P.

AU - Pattie, R. W.

AU - Bagdasarova, Y.

AU - Berguno, D. B.

AU - Broussard, L. J.

AU - Carr, R.

AU - Currie, S.

AU - Ding, X.

AU - Filippone, B. W.

AU - García, A.

AU - Geltenbort, P.

AU - Hickerson, K. P.

AU - Hoagland, J.

AU - Holley, A. T.

AU - Hong, R.

AU - Ito, T. M.

AU - Knecht, A.

AU - Liu, C. Y.

AU - Liu, J. L.

AU - Makela, M.

AU - Mammei, R. R.

AU - Martin, J. W.

AU - Melconian, D.

AU - Moore, S. D.

AU - Morris, C. L.

AU - Pérez Galván, A.

AU - Picker, R.

AU - Pitt, M. L.

AU - Plaster, B.

AU - Ramsey, J. C.

AU - Rios, R.

AU - Saunders, A.

AU - Seestrom, S. J.

AU - Sharapov, E. I.

AU - Sondheim, W. E.

AU - Tatar, E.

AU - Vogelaar, R. B.

AU - Vorndick, B.

AU - Wrede, C.

AU - Young, A. R.

AU - Zeck, B. A.

PY - 2013/3/25

Y1 - 2013/3/25

N2 - A new measurement of the neutron β-decay asymmetry A0 has been carried out by the UCNA Collaboration using polarized ultracold neutrons (UCNs) from the solid deuterium UCN source at the Los Alamos Neutron Science Center. Improvements in the experiment have led to reductions in both statistical and systematic uncertainties leading to A0=-0.11954( 55)stat(98)syst, corresponding to the ratio of axial-vector to vector coupling λ≡gA/g V=-1.2756(30).

AB - A new measurement of the neutron β-decay asymmetry A0 has been carried out by the UCNA Collaboration using polarized ultracold neutrons (UCNs) from the solid deuterium UCN source at the Los Alamos Neutron Science Center. Improvements in the experiment have led to reductions in both statistical and systematic uncertainties leading to A0=-0.11954( 55)stat(98)syst, corresponding to the ratio of axial-vector to vector coupling λ≡gA/g V=-1.2756(30).

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UR - http://www.scopus.com/inward/citedby.url?scp=84875983654&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.87.032501

DO - 10.1103/PhysRevC.87.032501

M3 - Article

AN - SCOPUS:84875983654

SN - 0556-2813

VL - 87

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 3

M1 - 032501

ER -

Precision measurement of the neutron β-decay asymmetry

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