Using Nab to determine correlations in unpolarized neutron decay

L. J. Broussard; S. Baeßler; T. L. Bailey; N. Birge; J. D. Bowman; C. B. Crawford; C. Cude-Woods; D. E. Fellers; N. Fomin; E. Frlež; M. T.W. Gericke; L. Hayen; A. P. Jezghani; H. Li; N. Macsai; M. F. Makela; R. R. Mammei; D. Mathews; P. L. McGaughey; P. E. Mueller; D. Počanić; C. A. Royse; A. Salas-Bacci; S. K.L. Sjue; J. C. Ramsey; N. Severijns; E. C. Smith; J. Wexler; R. A. Whitehead; A. R. Young; B. A. Zeck

doi:10.1007/s10751-018-1538-7

Using Nab to determine correlations in unpolarized neutron decay

L. J. Broussard, S. Baeßler, T. L. Bailey, N. Birge, J. D. Bowman, C. B. Crawford, C. Cude-Woods, D. E. Fellers, N. Fomin, E. Frlež, M. T.W. Gericke, L. Hayen, A. P. Jezghani, H. Li, N. Macsai, M. F. Makela, R. R. Mammei, D. Mathews, P. L. McGaughey, P. E. MuellerD. Počanić, C. A. Royse, A. Salas-Bacci, S. K.L. Sjue, J. C. Ramsey, N. Severijns, E. C. Smith, J. Wexler, R. A. Whitehead, A. R. Young, B. A. Zeck

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

10 Scopus citations

Abstract

The Nab experiment will measure the ratio of the weak axial-vector and vector coupling constants λ = g_A/g_V with precision δλ/λ ∼ 3 × 10^{− 4} and search for a Fierz term b_F at a level Δb_F < 10^{− 3}. The Nab detection system uses thick, large area, segmented silicon detectors to very precisely determine the decay proton’s time of flight and the decay electron’s energy in coincidence and reconstruct the correlation between the antineutrino and electron momenta. Excellent understanding of systematic effects affecting timing and energy reconstruction using this detection system are required. To explore these effects, a series of ex situ studies have been undertaken, including a search for a Fierz term at a less sensitive level of Δb_F < 10^{− 2} in the beta decay of ⁴⁵Ca using the UCNA spectrometer.

Original language	English
Article number	1
Journal	Hyperfine Interactions
Volume	240
Issue number	1
DOIs	https://doi.org/10.1007/s10751-018-1538-7
State	Published - Jun 1 2019

Bibliographical note

Publisher Copyright:
© 2018, Springer Nature Switzerland AG.

Keywords

Beta spectrum
Neutron beta decay
Nuclear beta decay
Silicon detector

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Nuclear and High Energy Physics
Condensed Matter Physics
Physical and Theoretical Chemistry

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10.1007/s10751-018-1538-7

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Broussard, L. J., Baeßler, S., Bailey, T. L., Birge, N., Bowman, J. D., Crawford, C. B., Cude-Woods, C., Fellers, D. E., Fomin, N., Frlež, E., Gericke, M. T. W., Hayen, L., Jezghani, A. P., Li, H., Macsai, N., Makela, M. F., Mammei, R. R., Mathews, D., McGaughey, P. L., ... Zeck, B. A. (2019). Using Nab to determine correlations in unpolarized neutron decay. Hyperfine Interactions, 240(1), Article 1. https://doi.org/10.1007/s10751-018-1538-7

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title = "Using Nab to determine correlations in unpolarized neutron decay",

abstract = "The Nab experiment will measure the ratio of the weak axial-vector and vector coupling constants λ = gA/gV with precision δλ/λ ∼ 3 × 10− 4 and search for a Fierz term bF at a level ΔbF < 10− 3. The Nab detection system uses thick, large area, segmented silicon detectors to very precisely determine the decay proton{\textquoteright}s time of flight and the decay electron{\textquoteright}s energy in coincidence and reconstruct the correlation between the antineutrino and electron momenta. Excellent understanding of systematic effects affecting timing and energy reconstruction using this detection system are required. To explore these effects, a series of ex situ studies have been undertaken, including a search for a Fierz term at a less sensitive level of ΔbF < 10− 2 in the beta decay of 45Ca using the UCNA spectrometer.",

keywords = "Beta spectrum, Neutron beta decay, Nuclear beta decay, Silicon detector",

author = "Broussard, {L. J.} and S. Bae{\ss}ler and Bailey, {T. L.} and N. Birge and Bowman, {J. D.} and Crawford, {C. B.} and C. Cude-Woods and Fellers, {D. E.} and N. Fomin and E. Frle{\v z} and Gericke, {M. T.W.} and L. Hayen and Jezghani, {A. P.} and H. Li and N. Macsai and Makela, {M. F.} and Mammei, {R. R.} and D. Mathews and McGaughey, {P. L.} and Mueller, {P. E.} and D. Po{\v c}ani{\'c} and Royse, {C. A.} and A. Salas-Bacci and Sjue, {S. K.L.} and Ramsey, {J. C.} and N. Severijns and Smith, {E. C.} and J. Wexler and Whitehead, {R. A.} and Young, {A. R.} and Zeck, {B. A.}",

note = "Publisher Copyright: {\textcopyright} 2018, Springer Nature Switzerland AG.",

year = "2019",

month = jun,

day = "1",

doi = "10.1007/s10751-018-1538-7",

language = "English",

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Broussard, LJ, Baeßler, S, Bailey, TL, Birge, N, Bowman, JD, Crawford, CB, Cude-Woods, C, Fellers, DE, Fomin, N, Frlež, E, Gericke, MTW, Hayen, L, Jezghani, AP, Li, H, Macsai, N, Makela, MF, Mammei, RR, Mathews, D, McGaughey, PL, Mueller, PE, Počanić, D, Royse, CA, Salas-Bacci, A, Sjue, SKL, Ramsey, JC, Severijns, N, Smith, EC, Wexler, J, Whitehead, RA, Young, AR & Zeck, BA 2019, 'Using Nab to determine correlations in unpolarized neutron decay', Hyperfine Interactions, vol. 240, no. 1, 1. https://doi.org/10.1007/s10751-018-1538-7

TY - JOUR

T1 - Using Nab to determine correlations in unpolarized neutron decay

AU - Broussard, L. J.

AU - Baeßler, S.

AU - Bailey, T. L.

AU - Birge, N.

AU - Bowman, J. D.

AU - Crawford, C. B.

AU - Cude-Woods, C.

AU - Fellers, D. E.

AU - Fomin, N.

AU - Frlež, E.

AU - Gericke, M. T.W.

AU - Hayen, L.

AU - Jezghani, A. P.

AU - Li, H.

AU - Macsai, N.

AU - Makela, M. F.

AU - Mammei, R. R.

AU - Mathews, D.

AU - McGaughey, P. L.

AU - Mueller, P. E.

AU - Počanić, D.

AU - Royse, C. A.

AU - Salas-Bacci, A.

AU - Sjue, S. K.L.

AU - Ramsey, J. C.

AU - Severijns, N.

AU - Smith, E. C.

AU - Wexler, J.

AU - Whitehead, R. A.

AU - Young, A. R.

AU - Zeck, B. A.

PY - 2019/6/1

Y1 - 2019/6/1

N2 - The Nab experiment will measure the ratio of the weak axial-vector and vector coupling constants λ = gA/gV with precision δλ/λ ∼ 3 × 10− 4 and search for a Fierz term bF at a level ΔbF < 10− 3. The Nab detection system uses thick, large area, segmented silicon detectors to very precisely determine the decay proton’s time of flight and the decay electron’s energy in coincidence and reconstruct the correlation between the antineutrino and electron momenta. Excellent understanding of systematic effects affecting timing and energy reconstruction using this detection system are required. To explore these effects, a series of ex situ studies have been undertaken, including a search for a Fierz term at a less sensitive level of ΔbF < 10− 2 in the beta decay of 45Ca using the UCNA spectrometer.

AB - The Nab experiment will measure the ratio of the weak axial-vector and vector coupling constants λ = gA/gV with precision δλ/λ ∼ 3 × 10− 4 and search for a Fierz term bF at a level ΔbF < 10− 3. The Nab detection system uses thick, large area, segmented silicon detectors to very precisely determine the decay proton’s time of flight and the decay electron’s energy in coincidence and reconstruct the correlation between the antineutrino and electron momenta. Excellent understanding of systematic effects affecting timing and energy reconstruction using this detection system are required. To explore these effects, a series of ex situ studies have been undertaken, including a search for a Fierz term at a less sensitive level of ΔbF < 10− 2 in the beta decay of 45Ca using the UCNA spectrometer.

KW - Beta spectrum

KW - Neutron beta decay

KW - Nuclear beta decay

KW - Silicon detector

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U2 - 10.1007/s10751-018-1538-7

DO - 10.1007/s10751-018-1538-7

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SN - 0304-3843

VL - 240

JO - Hyperfine Interactions

JF - Hyperfine Interactions

IS - 1

M1 - 1

ER -

Using Nab to determine correlations in unpolarized neutron decay

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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