Determination of the Axial-Vector Weak Coupling Constant with Ultracold Neutrons

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dc.contributor.author

Liu, J

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Mendenhall, MP

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Holley, AT

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Back, HO

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Bowles, TJ

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Broussard, LJ

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Carr, R

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Clayton, S

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Currie, S

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Filippone, BW

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García, A

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Geltenbort, P

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Hickerson, KP

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Hoagland, J

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Hogan, GE

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Hona, B

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Ito, TM

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Liu, C-Y

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Makela, M

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Mammei, RR

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Martin, JW

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Melconian, D

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Morris, CL

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Pattie, RW

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Pérez Galván, A

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Pitt, ML

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Plaster, B

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Ramsey, JC

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Rios, R

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Russell, R

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Saunders, A

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Seestrom, SJ

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Sondheim, WE

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Tatar, E

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Vogelaar, RB

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VornDick, B

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Wrede, C

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Yan, H

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Young, AR

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UCNA Collaboration

dc.date.accessioned

2011-06-21T17:27:51Z

dc.date.available

2011-06-21T17:27:51Z

dc.date.issued

2010

dc.description.abstract

A precise measurement of the neutron decay beta asymmetry A(0) has been carried out using polarized ultracold neutrons from the pulsed spallation ultracold neutron source at the Los Alamos Neutron Science Center. Combining data obtained in 2008 and 2009, we report A(0) = -0.119 66 +/- 0.000 89(-0.001 40)(+0.001 23), from which we determine the ratio of the axial- vector to vector weak coupling of the nucleon gA/gV = -1.275 90(-0.004 45)(+0.004 09).

dc.description.version

Version of Record

dc.identifier.citation

Liu,J.;Mendenhall,M. P.;Holley,A. T.;Back,H. O.;Bowles,T. J.;Broussard,L. J.;Carr,R.;Clayton,S.;Currie,S.;Filippone,B. W.;Garcia,A.;Geltenbort,P.;Hickerson,K. P.;Hoagland,J.;Hogan,G. E.;Hona,B.;Ito,T. M.;Liu,C. -Y;Makela,M.;Mammei,R. R.;Martin,J. W.;Melconian,D.;Morris,C. L.;Pattie,R. W., Jr.;Galvan,A. Perez;Pitt,M. L.;Plaster,B.;Ramsey,J. C.;Rios,R.;Russell,R.;Saunders,A.;Seestrom,S. J.;Sondheim,W. E.;Tatar,E.;Vogelaar,R. B.;VornDick,B.;Wrede,C.;Yan,H.;Young,A. R.;UCNA Collaboration. 2010. Determination of the Axial-Vector Weak Coupling Constant with Ultracold Neutrons. Physical Review Letters 105(18): 181803-181803.

dc.identifier.issn

0031-9007

dc.identifier.uri

https://hdl.handle.net/10161/4303

dc.language.iso

en_US

dc.publisher

American Physical Society (APS)

dc.relation.isversionof

10.1103/PhysRevLett.105.181803

dc.relation.journal

Physical Review Letters

dc.subject

beta-decay

dc.subject

polarized neutrons

dc.subject

asymmetry

dc.subject

proton

dc.subject

tests

dc.subject

physics, multidisciplinary

dc.title

Determination of the Axial-Vector Weak Coupling Constant with Ultracold Neutrons

dc.title.alternative
dc.type

Other article

duke.date.pubdate

2010-10-29

duke.description.issue

18

duke.description.volume

105

pubs.begin-page

181803

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