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NSR database version of April 11, 2024.

Search: Author = H.P.Mumm

Found 15 matches.

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2023WI03      Phys.Rev. D 107, 118501 (2023)

F.E.Wietfeldt, R.Biswas, J.Caylor, B.Crawford, M.S.Dewey, N.Fomin, G.L.Greene, C.C.Haddock, S.F.Hoogerheide, H.P.Mumm, J.S.Nico, W.M.Snow, J.Zuchegno

Comment on "Search for explanation of the neutron lifetime anomaly"

RADIOACTIVITY 1NN(β-); analyzed available data; deduced T1/2 measurement validation, lack of missing corrections and systematic uncertainties. The beam neutron lifetime experiment performed at NIST.

doi: 10.1103/PhysRevD.107.118501
Citations: PlumX Metrics


2019AS01      Nucl.Instrum.Methods Phys.Res. A922, 287 (2019)

J.Ashenfelter, A.B.Balantekin, C.Baldenegro, H.R.Band, C.D.Bass, D.E.Bergeron, D.Berish, L.J.Bignell, N.S.Bowden, J.Boyle, J.Bricco, J.P.Brodsky, C.D.Bryan, A.B.Telles, J.J.Cherwinka, T.Classen, K.Commeford, A.J.Conant, A.A.Cox, D.Davee, D.Dean, G.Deichert, M.V.Diwan, M.J.Dolinski, A.Erickson, M.Febbraro, B.T.Foust, J.K.Gaison, A.Galindo-Uribarri, C.E.Gilbert, K.E.Gilje, A.Glenn, B.W.Goddard, B.T.Hackett, K.Han, S.Hans, A.B.Hansell, K.M.Heeger, B.Heffron, J.Insler, D.E.Jaffe, X.Ji, D.C.Jones, K.Koehler, O.Kyzylova, C.E.Lane, T.J.Langford, J.LaRosa, B.R.Littlejohn, F.Lopez, X.Lu, D.A.Martinez Caicedo, J.T.Matta, R.D.McKeown, M.P.Mendenhall, H.J.Miller, J.M.Minock, P.E.Mueller, H.P.Mumm, J.Napolitano, R.Neilson, J.A.Nikkel, D.Norcini, S.Nour, D.A.Pushin, X.Qian, E.Romero-Romero, R.Rosero, D.Sarenac, B.S.Seilhan, R.Sharma, P.T.Surukuchi, C.Trinh, M.A.Tyra, R.L.Varner, B.Viren, J.M.Wagner, W.Wang, B.White, C.White, J.Wilhelmi, T.Wise, H.Yao, M.Yeh, Y.-R.Yen, A.Zhang, C.Zhang, X.Zhang, M.Zhao

The PROSPECT reactor antineutrino experiment

doi: 10.1016/j.nima.2018.12.079
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2019SW01      Phys.Rev. C 100, 015204 (2019)

H.E.Swanson, B.R.Heckel, C.D.Bass, T.D.Bass, J.M.Dawkins, J.C.Horton, D.Luo, W.M.Snow, S.B.Walbridge, B.E.Crawford, K.Gan, A.M.Micherdzinska, C.Huffer, D.M.Markoff, H.P.Mumm, J.S.Nico, M.Sarsour, E.I.Sharapov, V.Zhumabekova

Experimental upper bound and theoretical expectations for parity-violating neutron spin rotation in 4He

NUCLEAR REACTIONS 4He(polarized n, n), E=cold neutrons; measured polarization, parity-violating neutron spin rotation angle per unit length using a neutron optics crossed polarizer-analyzer with liquid 4He medium at the NIST Center for Neutron Research; deduced result consistent with zero. Comparison with previous experimental results, and with theoretical predictions. Reviewed the theoretical status of parity violation in then+4He system.

doi: 10.1103/PhysRevC.100.015204
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2016BA29      Phys.Rev.Lett. 116, 242501 (2016)

M.J.Bales, R.Alarcon, C.D.Bass, E.J.Beise, H.Breuer, J.Byrne, T.E.Chupp, K.J.Coakley, R.L.Cooper, M.S.Dewey, S.Gardner, T.R.Gentile, D.He, H.P.Mumm, J.S.Nico, B.O'Neill, A.K.Thompson, F.E.Wietfeldt, for the RDK II Collaboration

Precision Measurement of the Radiative β Decay of the Free Neutron

RADIOACTIVITY 1NN(β-); measured decay products, Eγ, Iγ, Eβ, Iβ, Ep, Ip; deduced photon energy spectrum from neutron radiative decay branching ratio and its uncertainties. Comparison with theoretical calculations.

doi: 10.1103/PhysRevLett.116.242501
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Data from this article have been entered in the XUNDL database. For more information, click here.


2016MU05      Phys.Rev. C 93, 065502 (2016)

H.P.Mumm, M.G.Huber, W.Bauder, N.Abrams, C.M.Deibel, C.R.Huffer, P.R.Huffman, K.W.Schelhammer, R.Janssens, C.L.Jiang, R.H.Scott, R.C.Pardo, K.E.Rehm, R.Vondrasek, C.M.Swank, C.M.O'Shaughnessy, M.Paul, L.Yang

High-sensitivity measurement of 3He - 4He isotopic ratios for ultracold neutron experiments

ATOMIC MASSES 3,4He; measured absolute isotopic ratio of 3He to 4He with a high sensitivity at ATLAS-ANL facility. Relevance to neutron half-life measurements using ultra-cold neutrons.

doi: 10.1103/PhysRevC.93.065502
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2016PH02      Phys.Rep. 612, 1 (2016)

D.G.Phillips II, W.M.Snow, K.Babu, S.Banerjee, D.V.Baxter, Z.Berezhiani, M.Bergevin, S.Bhattacharya, G.Brooijmans, L.Castellanos, M.-C.Chen, C.E.Coppola, R.Cowsik, J.A.Crabtree, P.Das, E.B.Dees, A.Dolgov, P.D.Ferguson, M.Frost, T.Gabriel, A.Gal, F.Gallmeier, K.Ganezer, E.Golubeva, G.Greene, B.Hartfiel, A.Hawari, L.Heilbronn, C.Johnson, Y.Kamyshkov, B.Kerbikov, M.Kitaguchi, B.Z.Kopeliovich, V.B.Kopeliovich, V.A.Kuzmin, C-Y.Liu, P.McGaughey, M.Mocko, R.Mohapatra, N.Mokhov, G.Muhrer, H.P.Mumm, L.Okun, R.W.Pattie, Jr., C.Quigg, E.Ramberg, A.Ray, A.Roy, A.Ruggles, U.Sarkar, A.Saunders, A.P.Serebrov, H.M.Shimizu, R.Shrock, A.K.Sikdar, S.Sjue, S.Striganov, L.W.Townsend, R.Tschirhart, A.Vainshtein, R.Van Kooten, Z.Wang, A.R.Young

Neutron-antineutron oscillations: Theoretical status and experimental prospects

COMPILATION A=1; compiled experimental and theoretical information.

doi: 10.1016/j.physrep.2015.11.001
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2013CH11      Hyperfine Interactions 214, 97 (2013)

T.E.Chupp, R.L.Cooper, K.P.Coulter, S.J.Freedman, B.K.Fujikawa, G.L.Jones, A.Garcia, H.P.Mumm, J.S.Nico, A.K.Thompson, C.Trull, F.E.Wietfeldt, J.F.Wilkerson, for the emiT II Collaboration

Time reversal and the neutron

RADIOACTIVITY 1NN(β-); measured Eβ, Iβ, Ep, Ip, p-E-coin.; deduced triple correlation value, phase of the axial-vector coupling relative to the vector coupling.

doi: 10.1007/s10751-013-0776-y
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2012CH36      Phys.Rev. C 86, 035505 (2012)

T.E.Chupp, R.L.Cooper, K.P.Coulter, S.J.Freedman, B.K.Fujikawa, A.Garcia, G.L.Jones, H.P.Mumm, J.S.Nico, A.K.Thompson, C.A.Trull, F.E.Wietfeldt, J.F.Wilkerson

Search for a T-odd, P-even triple correlation in neutron decay

RADIOACTIVITY 1n(β-); measured Ep, Ip, Eβ, (proton)(electron)-coin, proton time of flight in the decay of longitudinally polarized neutron using emiT apparatus at NIST Center for Neutron Research (NCNR); deduced T-odd, P-even triple correlation D, phase of the ratio of the axial-vector and vector coupling constants.

doi: 10.1103/PhysRevC.86.035505
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2011MU15      Phys.Rev.Lett. 107, 102301 (2011)

H.P.Mumm, T.E.Chupp, R.L.Cooper, K.P.Coulter, S.J.Freedman, B.K.Fujikawa, A.Garcia, G.L.Jones, J.S.Nico, A.K.Thompson, C.A.Trull, J.F.Wilkerson, F.E.Wietfeldt

New Limit on Time-Reversal Violation in Beta Decay

doi: 10.1103/PhysRevLett.107.092301
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Data from this article have been entered in the XUNDL database. For more information, click here.


2011SN01      Phys.Rev. C 83, 022501 (2011)

W.M.Snow, C.D.Bass, T.D.Bass, B.E.Crawford, K.Gan, B.R.Heckel, D.Luo, D.M.Markoff, A.M.Micherdzinska, H.P.Mumm, J.S.Nico, A.K.Opper, M.Sarsour, E.I.Sharapov, H.E.Swanson, S.B.Walbridge, V.Zhumabekova

Upper bound on parity-violating neutron spin rotation in 4He

NUCLEAR REACTIONS 4He(polarized n, n), E=slow; measured neutron spin rotation angle per unit length; deduced upper bound on parity-violating neutron spin rotation.

doi: 10.1103/PhysRevC.83.022501
Citations: PlumX Metrics


2010CO03      Phys.Rev. C 81, 035503 (2010)

R.L.Cooper, T.E.Chupp, M.S.Dewey, T.R.Gentile, H.P.Mumm, J.S.Nico, A.K.Thompson, B.M.Fisher, I.Kremsky, F.E.Wietfeldt, E.J.Beise, K.G.Kiriluk, J.Byrne, K.J.Coakley, C.Fu

Radiative β decay of the free neutron

RADIOACTIVITY 1n(β-); measured Eγ, Ep, E(e), peγ-coin; deduced branching ratio for radiative decay (inner bremsstrahlung) of neutron in 15-340 keV photon energy range. Monte-Carlo simulations of the spectra. Comparison with theoretical predictions.

doi: 10.1103/PhysRevC.81.035503
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Data from this article have been entered in the XUNDL database. For more information, click here.


2006NI13      Nature(London) 444, 1059 (2006)

J.S.Nico, M.S.Dewey, T.R.Gentile, H.P.Mumm, A.K.Thompson, B.M.Fisher, I.Kremsky, F.E.Wietfeldt, T.E.Chupp, R.L.Cooper, E.J.Beise, K.G.Kiriluk, J.Byrne, K.J.Coakley

Observation of the radiative decay mode of the free neutron

RADIOACTIVITY 1n(β-); measured Eγ, βγ-, (proton)γ-coin; deduced branching ratio for radiative decay.

doi: 10.1038/nature05390
Citations: PlumX Metrics


2005BA56      J.Res.Natl.Inst.Stand.Technol. 110, 205 (2005)

C.D.Bass, J.M.Dawkins, D.Luo, A.Micherdzinska, M.Sarsour, W.M.Snow, H.P.Mumm, J.S.Nico, P.R.Huffman, D.M.Markoff, B.R.Heckel, H.E.Swanson

Measurement of the Parity-Violating Neutron Spin Rotation in 4He

doi: 10.6028/jres.110.025
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2000JO03      Nucl.Instrum.Methods Phys.Res. A440, 648 (2000)

G.L.Jones, J.M.Adams, J.M.Anaya, T.J.Bowles, T.E.Chupp, K.P.Coulter, M.S.Dewey, S.J.Freedman, B.K.Fujikawa, A.Garcia, G.L.Greene, S.-R.Hwang, L.J.Lising, H.P.Mumm, J.S.Nico, R.G.H.Robertson, T.D.Steiger, W.A.Teasdale, A.K.Thompson, E.G.Wasserman, F.E.Wietfeldt, J.F.Wilkerson

Time Reversal in Polarized Neutron Decay: The emiT experiment

RADIOACTIVITY 1n(β-); measured proton-electron correlations following polarized neutron decay.

doi: 10.1016/S0168-9002(99)01056-6
Citations: PlumX Metrics


2000LI42      Phys.Rev. C62, 055501 (2000)

L.J.Lising, S.R.Hwang, J.M.Adams, T.J.Bowles, M.C.Browne, T.E.Chupp, K.P.Coulter, M.S.Dewey, S.J.Freedman, B.K.Fujikawa, A.Garcia, G.L.Greene, G.L.Jones, H.P.Mumm, J.S.Nico, J.M.Richardson, R.G.H.Robertson, T.D.Steiger, W.A.Teasdale, A.K.Thompson, E.G.Wasserman, F.E.Wietfeldt, R.C.Welsh, J.F.Wilkerson, and the emiT Collaboration

New Limit on the D Coefficient in Polarized Neutron Decay

RADIOACTIVITY 1n(β-); measured pβ-coin following polarized neutron decay; deduced limits on time-reversal invariance coefficient.

doi: 10.1103/PhysRevC.62.055501
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