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NSR database version of April 24, 2024.

Search: Author = S.Gardner

Found 22 matches.

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2023BA25      Phys.Lett. B 844, 138080 (2023)

M.Bashkanov, D.P.Watts, S.Kay, S.Abt, P.Achenbach, P.Adlarson, F.Afzal, Z.Ahmed, C.S.Akondi, J.R.M.Annand, H.J.Arends, R.Beck, M.Biroth, N.Borisov, A.Braghieri, W.J.Briscoe, F.Cividini, C.Collicott, S.Costanza, A.Denig, E.J.Downie, P.Drexler, S.Fegan, A.Fix, S.Gardner, D.Ghosal, D.I.Glazier, I.Gorodnov, W.Gradl, M.Gunther, D.Gurevich, L.Heijkenskjold, D.Hornidge, G.M.Huber, A.Kaser, V.L.Kashevarov, M.Korolija, B.Krusche, A.Lazarev, K.Livingston, S.Lutterer, I.J.D.MacGregor, D.M.Manley, P.P.Martel, R.Miskimen, E.Mornacchi, C.Mullen, A.Neganov, A.Neiser, M.Ostrick, P.B.Otte, D.Paudyal, P.Pedroni, A.Powell, S.N.Prakhov, V.Sokhoyan, K.Spieker, O.Steffen, I.I.Strakovsky, T.Strub, I.Supek, A.Thiel, M.Thiel, A.Thomas, Yu.A.Usov, S.Wagner, J.Wettig, M.Wolfes, N.Zachariou

First measurement of polarisation transfer Cnx, in deuteron photodisintegration

NUCLEAR REACTIONS 2H(polarized γ, X), E=370-700 MeV; measured reaction products; deduced the polarisation transfer from a circularly-polarised photon to the final state neutron in deuterium photodisintegration. Cryogenic liquid deuterium target within the Crystal Ball detector at MAMI.

doi: 10.1016/j.physletb.2023.138080
Citations: PlumX Metrics


2023GA13      Phys.Rev. C 107, 055501 (2023)

S.Gardner, G.Muralidhara

Toward a unified treatment of ΔS = 0 parity violation in low-energy nuclear processes

NUCLEAR REACTIONS 1H(polarized p, p), E=13.6, 15, 45 MeV; 1H(polarized n, γ), (polarized n, p), E cold; analyzed data on parity-violating asymmetry; deduced parity-violating meson-nucleon coupling constants.

doi: 10.1103/PhysRevC.107.055501
Citations: PlumX Metrics


2021BE29      Phys.Rev. C 104, 045802 (2021)

J.M.Berryman, S.Gardner

Neutron star structure with a new force between quarks

doi: 10.1103/PhysRevC.104.045802
Citations: PlumX Metrics


2019AK10      Eur.Phys.J. A 55, 202 (2019)

C.S.Akondi, K.Bantawa, D.M.Manley, S.Abt, P.Achenbach, F.Afzal, P.Aguar-Bartolome, Z.Ahmed, J.R.M.Annand, H.J.Arends, M.Bashkanov, R.Beck, M.Biroth, N.Borisov, A.Braghieri, W.J.Briscoe, F.Cividini, C.Collicott, S.Costanza, A.Denig, M.Dieterle, E.J.Downie, P.Drexler, M.I.Ferretti-Bondy, S.Gardner, D.I.Glazier, I.Gorodnov, W.Gradl, M.Gunther, D.Gurevich, S.Kay, L.Heijkenskjold, D.Hornidge, G.M.Huber, M.Kaser, V.L.Kashevarov, M.Korolija, B.Krusche, A.Lazarev, K.Livingston, S.Lutterer, J.C.McGeorge, I.J.D.MacGregor, P.P.Martel, D.G.Middleton, R.Miskimen, E.Mornacchi, A.Mushkarenkov, C.Mullen, A.Neganov, A.Neiser, M.Oberle, M.Ostrick, P.B.Otte, B.Oussena, D.Paudyal, P.Pedroni, A.Powell, S.N.Prakhov, G.Ron, T.Rostomyan, A.Sarty, C.Sfienti, V.Sokhoyan, K.Spieker, O.Steffen, I.I.Strakovsky, Th.Strub, I.Supek, A.Thiel, M.Thiel, A.Thomas, M.Unverzagt, Yu.A.Usov, N.K.Walford, D.P.Watts, S.Wagner, D.Werthmuller, J.Wettig, L.Witthauer, M.Wolfes

Experimental study of the γp → K0Σ+, γn → K0Λ, and γn → K0Σ0 reactions at the Mainz Microtron

doi: 10.1140/epja/i2019-12924-x
Citations: PlumX Metrics


2017DI10      Phys.Lett. B 770, 523 (2017)

M.Dieterle, L.Witthauer, F.Cividini, S.Abt, P.Achenbach, P.Adlarson, F.Afzal, Z.Ahmed, C.S.Akondi, J.R.M.Annand, H.J.Arends, M.Bashkanov, R.Beck, M.Biroth, N.S.Borisov, A.Braghieri, W.J.Briscoe, S.Costanza, C.Collicott, A.Denig, E.J.Downie, P.Drexler, M.I.Ferretti-Bondy, S.Gardner, S.Garni, D.I.Glazier, D.Glowa, W.Gradl, M.Gunther, G.M.Gurevich, D.Hamilton, D.Hornidge, G.M.Huber, A.Kaser, V.L.Kashevarov, S.Kay, I.Keshelashvili, R.Kondratiev, M.Korolija, B.Krusche, A.B.Lazarev, J.M.Linturi, V.Lisin, K.Livingston, S.Lutterer, I.J.D.MacGregor, J.Mancell, D.M.Manley, P.P.Martel, V.Metag, W.Meyer, R.Miskimen, E.Mornacchi, A.Mushkarenkov, A.B.Neganov, A.Neiser, M.Oberle, M.Ostrick, P.B.Otte, D.Paudyal, P.Pedroni, A.Polonski, S.N.Prakhov, A.Rajabi, G.Reicherz, G.Ron, T.Rostomyan, A.Sarty, C.Sfienti, M.H.Sikora, V.Sokhoyan, K.Spieker, O.Steffen, I.I.Strakovsky, Th.Strub, I.Supek, A.Thiel, M.Thiel, A.Thomas, M.Unverzagt, Yu.A.Usov, S.Wagner, N.K.Walford, D.P.Watts, D.Werthmuller, J.Wettig, M.Wolfes, L.Zana

First measurement of the polarization observable E and helicity-dependent cross sections in single π0 photoproduction from quasi-free nucleons

NUCLEAR REACTIONS 2H(γ, π0), E=400-1450 MeV; measured reaction products; deduced σ.

doi: 10.1016/j.physletb.2017.04.079
Citations: PlumX Metrics


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
Citations: PlumX Metrics

Data from this article have been entered in the XUNDL database. For more information, click here.


2016GA38      Eur.Phys.J. A 52, 333 (2016)

S.Gardner, for the A2 Collaboration at MAMI

Photon asymmetry measurements of γ(pol)p → π0p for Eγ= 320-650 MeV

NUCLEAR REACTIONS 1H(polarized γ, π0), E(cm)=1214-1450 MeV[liquid hydrogen target]; measured bremsstrahlung induced π0 asymmetry using CB (Crystal Ball of 672 NaI(Tl) crystals) as a central calorimeter and TAPS (384 BaF2) as a forward one; deduced 2γ invariant mass distributions, γ asymmetry vs θ, Legendre coefficients.

doi: 10.1140/epja/i2016-16333-5
Citations: PlumX Metrics


2015AL28      Eur.Phys.J. A 51, 123 (2015), Erratum Eur.Phys.J. A 51, 138 (2015)

R.Al Jebali, J.R.M.Annand, J.-O.Adler, I.Akkurt, E.Buchanan, J.Brudvik, K.Fissum, S.Gardner, D.J.Hamilton, K.Hansen, L.Isaksson, K.Livingston, M.Lundin, J.C.McGeorge, I.J.D.MacGregor, R.MacRae, D.G.Middleton, A.J.H.Reiter, G.Rosner, B.Schroder, J.Sjogren, D.Sokhan, B.Strandberg

A helium gas scintillator active target for photoreaction measurements

doi: 10.1140/epja/i2015-15123-y
Citations: PlumX Metrics


2013GA09      Hyperfine Interactions 214, 71 (2013)

S.Gardner, D.He

T-odd momentum correlation in radiative β decay

doi: 10.1007/s10751-013-0781-1
Citations: PlumX Metrics


2013GA22      Phys.Rev. C 87, 065504 (2013)

S.Gardner, B.Plaster

Framework for maximum likelihood analysis of neutron β decay observables to resolve the limits of the V-A law

RADIOACTIVITY 1n(β-); analyzed β decay observables through maximum likelihood statistical method. Global fits to Monte Carlo pseudodata. Standard model parameters and CVC hypothesis. Discussed limits of the V-A law of standard model.

doi: 10.1103/PhysRevC.87.065504
Citations: PlumX Metrics


2010GA31      Nucl.Phys. A844, 234c (2010)

S.Gardner

Shedding light on the symmetries of dark matter

doi: 10.1016/j.nuclphysa.2010.05.041
Citations: PlumX Metrics


2006BR30      Phys.Lett. B 643, 22 (2006)

S.J.Brodsky, S.Gardner

Evidence for the absence of gluon orbital angular momentum in the nucleon

doi: 10.1016/j.physletb.2006.10.024
Citations: PlumX Metrics


2005GA37      J.Res.Natl.Inst.Stand.Technol. 110, 411 (2005)

S.Gardner, V.Bernard, Ulf-G.Meissner, C.Zhang

Radiative Neutron β-Decay in Effective Field Theory

RADIOACTIVITY 1n(β-); calculated photon spectrum, polarization. Effective field theory.

doi: 10.6028/jres.110.062
Citations: PlumX Metrics


2004BE44      Phys.Lett. B 593, 105 (2004); Erratum Phys.Lett. B 599, 348 (2004)

V.Bernard, S.Gardner, U.-G.Meissner, C.Zhang

Radiative neutron β-decay in effective field theory

RADIOACTIVITY 1n(β-); calculated photon spectrum, polarization for radiative decay. Effective field theory.

doi: 10.1016/j.physletb.2004.04.064
Citations: PlumX Metrics


2004GA43      Phys.Lett. B 598, 188 (2004)

S.Gardner, V.Bernard, U.-G.Meissner

Radiative tritium β-decay and the neutrino mass

RADIOACTIVITY 3H(β-); calculated Eβ, radiative corrections. Implications for neutrino mass determination discussed.

doi: 10.1016/j.physletb.2004.08.006
Citations: PlumX Metrics


2003ME34      Eur.Phys.J. A 18, 543 (2003)

Ulf.-G.Meissner, S.Gardner

Chiral dynamics and B → 3π decay

doi: 10.1140/epja/i2002-10279-1
Citations: PlumX Metrics


2001GA37      Phys.Rev.Lett. 86, 5666 (2001)

S.Gardner, C.Zhang

Sharpening Low-Energy, Standard-Model Tests via Correlation Coefficients in Neutron β Decay

RADIOACTIVITY 1n(β-); analyzed correlation coefficients, recoil-order corrections. Implications for Standard Model tests discussed.

doi: 10.1103/PhysRevLett.86.5666
Citations: PlumX Metrics


1996GA03      Phys.Rev. C53, 1143 (1996)

S.Gardner, C.J.Horowitz, J.Piekarewicz

Isospin-Violating Meson-Nucleon Vertices as an Alternate Mechanism of Charge-Symmetry Breaking

doi: 10.1103/PhysRevC.53.1143
Citations: PlumX Metrics


1995GA31      Phys.Rev.Lett. 75, 2462 (1995)

S.Gardner, C.J.Horowitz, J.Piekarewicz

Charge-Symmetry-Breaking Potentials from Isospin-Violating Meson-Baryon Coupling Constants

NUCLEAR REACTIONS 1H(polarized n, n), E=183 MeV; analyzed n, p analyzing power difference data; deduced charge symmetry breaking potential characteristics. Polarized target.

doi: 10.1103/PhysRevLett.75.2462
Citations: PlumX Metrics


1994CH42      Phys.Rev. C50, 3079 (1994)

M.-C.Chu, S.Gardner, T.Matsui, R.Seki

Pion Interferometry with Pion-Source-Medium Interactions

NUCLEAR REACTIONS 197Au(28Si, X), E at 14.6 GeV/c/nucleon; analyzed correlation function data, inclusive 2π- production; deduced extended pion source effects.

doi: 10.1103/PhysRevC.50.3079
Citations: PlumX Metrics


1994GA21      Phys.Rev. C50, 1137 (1994)

S.Gardner, C.J.Horowitz, J.Piekarewicz

Dynamical Color Correlations in a SU(2)(c) Quark Exchange Model of Nuclear Matter

doi: 10.1103/PhysRevC.50.1137
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1994GA32      Phys.Rev. C50, 2822 (1994)

S.Gardner, J.Piekarewicz

Relativistically Generated Asymmetry in the Missing-Momentum Distribution from the (e, e'p) Reaction

NUCLEAR REACTIONS 16O(e, e'p), E not given; calculated longitudinal reduced σ vs missing momentum, missing momentum distribution asymmetry. Relativistic distorted wave, plane wave impulse approximation.

doi: 10.1103/PhysRevC.50.2822
Citations: PlumX Metrics


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