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NSR database version of April 11, 2024.

Search: Author = T.Walcher

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2023KE04      Phys.Rev.Lett. 130, 152502 (2023)

S.Kegel, P.Achenbach, S.Bacca, N.Barnea, J.Bericic, D.Bosnar, L.Correa, M.O.Distler, A.Esser, H.Fonvieille, I.Friscic, M.Heilig, P.Herrmann, M.Hoek, P.Klag, T.Kolar, W.Leidemann, H.Merkel, M.Mihovilovic, J.Muller, U.Muller, G.Orlandini, J.Pochodzalla, B.S.Schlimme, M.Schoth, F.Schulz, C.Sfienti, S.Sirca, R.Spreckels, Y.Stottinger, M.Thiel, A.Tyukin, T.Walcher, A.Weber

Measurement of the α-Particle Monopole Transition Form Factor Challenges Theory: A Low-Energy Puzzle for Nuclear Forces?

NUCLEAR REACTIONS 4He(e-, e-'), E=450, 690, 795 MeV; measured reaction products; deduced missing mass spectrum, monopole transition form factor, resonance parameters, modern nuclear forces, including those derived within chiral effective field theory fail to reproduce the excitation of the α particle. The Mainz Microtron MAMI.

doi: 10.1103/PhysRevLett.130.152502
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2016MA64      Eur.Phys.J. A 52, 298 (2016)

M.Makek, P.Achenbach, C.Ayerbe Gayoso, C.Barbieri, J.C.Bernauer, R.Bohm, D.Bosnar, A.Denig, M.O.Distler, I.Friscic, C.Giusti, H.Merkel, U.Muller, L.Nungesser, J.Pochodzalla, S.Sanches Majos, B.S.Schlimme, M.Schwamb, Th.Walcher, for the A1 Collaboration

Differential cross section measurement of the 12C(e, e'pp)10Beg.s. reaction

NUCLEAR REACTIONS 12C(e, e'pp)10Begs, E=163 MeV; measured Ep, Ip using Si detectors and Ie, Ip using high-resolution magnetic spectrometers, pp-coin, ep-coin; deduced σ(E, θ). 10Be deduced excitation energy spectrum after triple coin; calculated σ(E, θ) using Pavia reaction code.

doi: 10.1140/epja/i2016-16298-3
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2014BE19      Phys.Rev. C 90, 015206 (2014)

J.C.Bernauer, M.O.Distler, J.Friedrich, Th.Walcher, P.Achenbach, C.Ayerbe Gayoso, R.Bohm, D.Bosnar, L.Debenjak, L.Doria, A.Esser, H.Fonvieille, M.Gomez Rodriguez, J.M.Friedrich, M.Makek, H.Merkel, D.G.Middleton, U.Muller, L.Nungesser, J.Pochodzalla, M.Potokar, S.Sanchez Majos, B.S.Schlimme, S.Sirca, M.Weinriefer

Electric and magnetic form factors of the proton

doi: 10.1103/PhysRevC.90.015206
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2013SP05      Eur.Phys.J. A 49, 136 (2013)

N.Sparveris, S.Stave, P.Achenbach, C.Ayerbe Gayoso, D.Baumann, J.Bernauer, A.M.Bernstein, R.Bohm, D.Bosnar, T.Botto, A.Christopoulou, D.Dale, M.Ding, M.O.Distler, L.Doria, J.Friedrich, A.Karabarbounis, M.Makek, H.Merkel, U.Muller, I.Nakagawa, R.Neuhausen, L.Nungesser, C.N.Papanicolas, A.Piegsa, J.Pochodzalla, M.Potokar, M.Seimetz, S.Sirca, S.Stiliaris, Th.Walcher, M.Weis

Measurements of the γ*p → Δ reaction at low Q2

NUCLEAR REACTIONS 1H(polarized e, e'p)π0, E(cm)=1205-1240 MeV; measured Ep, Ip(θ); deduced three unpolarized σ. Compared with published calculations.

doi: 10.1140/epja/i2013-13136-2
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2011DI01      Phys.Lett. B 696, 343 (2011)

M.O.Distler, J.C.Bernauer, T.Walcher

The RMS charge radius of the proton and Zemach moments

NUCLEAR STRUCTURE 1H; analyzed electric form factor measurements; deduced Zemach moments of nuclear charge distribution.

doi: 10.1016/j.physletb.2010.12.067
Citations: PlumX Metrics


2009MI18      Phys.Rev.Lett. 103, 152501 (2009)

D.G.Middleton, J.R.M.Annand, M.A.Antelo, C.Ayerbe, P.Barneo, D.Baumann, J.Bermuth, J.Bernauer, H.P.Blok, R.Bohm, D.Bosnar, M.Ding, M.O.Distler, J.Friedrich, J.Garcia Llongo, D.I.Glazier, J.Golak, W.Glockle, P.Grabmayr, T.Hehl, J.Heim, W.H.A.Hesselink, E.Jans, H.Kamada, G.J.Manas, M.Kohl, L.Lapikas, I.J.D.MacGregor, I.Martin, J.C.McGeorge, H.Merkel, P.Merle, K.Monstad, F.Moschini, U.Muller, A.Nogga, R.Perez-Benito, Th.Pospischil, M.Potokar, G.Rosner, M.Seimetz, R.Skibinski, H.de Vries, Th.Walcher, D.P.Watts, M.Weinriefer, M.Weiss, H.Witala, B.Zihlmann

Investigation of the Exclusive 3He(e, e'pn)1H Reaction

NUCLEAR REACTIONS 3He(e, e'np), E=220-270 MeV; measured Ee, Ie, Ep, Ip and En, In; deduced σ. Continuum Fadeev calculations.

doi: 10.1103/PhysRevLett.103.152501
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2008BO32      Phys.Rev. C 78, 054001 (2008)

W.U.Boeglin, H.Arenhovel, K.I.Blomqvist, R.Bohm, M.Distler, R.Edelhoff, I.Ewald, R.Florizone, J.Friedrich, R.Geiges, M.Kahrau, M.Korn, H.Kramer, K.W.Krygier, V.Kunde, A.Liesenfeld, K.Merle, R.Neuhausen, E.A.J.M.Offermann, Th.Pospischil, A.W.Richter, G.Rosner, P.Sauer, S.Schardt, A.Serdarevic, A.Wagner, Th.Walcher, S.Wolf, J.Jourdan, I.Sick, M.Kuss, M.Potokar, A.Rokavec, B.Vodenik, S.Sirca

fLT response function of 2H(e, e'p)n at Q2=0.33 GeV/c)2

NUCLEAR REACTIONS 2H(e, e'p), E=855.11 MeV; measured σ, missing momentum, kinematic variables; deduced interference response function. Comparison with Coupled Channels Calculations.

doi: 10.1103/PhysRevC.78.054001
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2008JA10      Eur.Phys.J. A 37, 1 (2008)

P.Janssens, L.Doria, P.Achenbach, C.Ayerbe Gayoso, D.Baumann, J.C.Bernauer, I.K.Bensafa, R.Bohm, D.Bosnar, E.Burtin, N.D'Hose, X.Defay, M.Ding, M.O.Distler, H.Fonvieille, J.Friedrich, J.M.Friedrich, G.Laveissiere, M.Makek, J.Marroncle, H.Merkel, U.Muller, L.Nungesser, B.Pasquini, J.Pochodzalla, O.Postavaru, M.Potokar, D.Ryckbosch, S.Sanchez Majos, B.S.Schlimme, M.Seimetz, S.Sirca, G.Tamas, R.Van de Vyver, L.Van Hoorebeke, A.Van Overloop, Th.Walcher, M.Weinriefer

A new measurement of the structure functions PLL - PTT/ε and PLT in virtual Compton scattering at Q2 = 0.33 (GeV/c)2

NUCLEAR REACTIONS 1H(polarized e, e'γ), E=854.6 MeV; measured electron, proton and missing mass spectra; deduced unpolarized σ, structure functions.

doi: 10.1140/epja/i2008-10609-3
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2008MI26      Few-Body Systems 44, 171 (2008)

D.G.Middleton, J.R.M.Annand, M.A.Antelo, C.Ayerbe, P.Barneo, D.Baumann, J.Bermuth, J.Bernauer, H.P.Blok, R.Bohm, D.Bosnar, M.Ding, M.O.Distler, J.Friedrich, J.Garcia Llongo, D.I.Glazier, P.Grabmayr, T.Hehl, J.Heim, W.H.A.Hesselink, E.Jans, G.J.Manas, M.Kohl, L.Lapikas, I.J.D.MacGregor, I.Martin, J.C.McGeorge, H.Merkel, P.Merle, K.Monstad, F.Moschini, U.Muller, R.Perez Benito, Th.Pospischil, M.Potokar, G.Rosner, M.Seimitz, H.de Vries, Th.Walcher, D.P.Watts, M.Weinriefer, M.Weiss, B.Zihlmann

3He(e, e'pp) and 3He(e, e'pn) reactions at AmPS and MAMI

NUCLEAR REACTIONS 3He(e, e'2p), (e, e'np), E not given; measured cross sections.

doi: 10.1007/s00601-008-0283-x
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2008SP05      Phys.Rev. C 78, 018201 (2008)

N.F.Sparveris, P.Achenbach, C.Ayerbe Gayoso, D.Baumann, J.Bernauer, A.M.Bernstein, R.Bohm, D.Bosnar, T.Botto, A.Christopoulou, D.Dale, M.Ding, M.O.Distler, L.Doria, J.Friedrich, A.Karabarbounis, M.Makek, H.Merkel, U.Muller, I.Nakagawa, R.Neuhausen, L.Nungesser, C.N.Papanicolas, B.Pasquini, A.Piegsa, J.Pochodzalla, M.Potokar, M.Seimetz, S.Sirca, S.Stave, S.Stiliaris, Th.Walcher, M.Weis

Virtual Compton scattering measurements in the γ* N → Δ transition

NUCLEAR REACTIONS 1H(e, e'p), E=855 MeV; measured virtual Compton scattering σ, missing mass spectra; deduced magnetic dipole amplitude.

doi: 10.1103/PhysRevC.78.018201
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2008ST16      Phys.Rev. C 78, 025209 (2008)

S.Stave, N.Sparveris, M.O.Distler, I.Nakagawa, P.Achenbach, C.Ayerbe Gayoso, D.Baumann, J.Bernauer, A.M.Bernstein, R.Bohm, D.Bosnar, T.Botto, A.Christopoulou, D.Dale, M.Ding, L.Doria, J.Friedrich, A.Karabarbounis, M.Makek, H.Merkel, U.Muller, R.Neuhausen, L.Nungesser, C.N.Papanicolas, A.Piegsa, J.Pochodzalla, M.Potokar, M.Seimetz, S.Sirca, S.Stiliaris, Th.Walcher, M.Weis, for the A1 Collaboration

Measurements of the γ*p → Δ reaction at low Q2: Probing the mesonic contribution

NUCLEAR REACTIONS p(polarized e, e'p)π, E=705, 795, 855 MeV; measured σ, σ(θ).Comparison with model calculations.

doi: 10.1103/PhysRevC.78.025209
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2008WE11      Eur.Phys.J. A 38, 27 (2008)

M.Weis, P.Bartsch, D.Baumann, J.Bermuth, A.M.Bernstein, K.Bohinc, R.Bohm, M.Ding, M.O.Distler, I.Ewald, J.M.Friedrich, J.Friedrich, M.Kahrau, M.Kohl, K.W.Krygier, A.Liesenfeld, H.Merkel, P.Merle, U.Muller, R.Neuhausen, M.M.Pavan, Th.Pospischil, M.Potokar, G.Rosner, H.Schmieden, M.Seimetz, S.Sirca, A.Wagner, Th.Walcher, for The A1 Collaboration

Separated cross-sections in π0 electroproduction at threshold at Q2 = 0.05 GeV2/c2

NUCLEAR REACTIONS 1H(e, e'p), E=854.49 MeV; measured neutral pion production σ(θ), missing mass spectra. 1H(polarized e, e'p), E=854.49 MeV; measured beam helicity asymmetry. Comparison with model calculations.

doi: 10.1140/epja/i2008-10644-6
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2007BE55      Eur.Phys.J. A 32, 69 (2007)

I.K.Bensafa, P.Achenbach, M.A.Antelo, C.Ayerbe, D.Baumann, R.Bohm, D.Bosnar, E.Burtin, X.Defay, N.D'Hose, M.Ding, M.O.Distler, L.Doria, H.Fonvieille, J.M.Friedrich, J.Friedrich, J.Garcia Llongo, P.Janssens, G.J.Manas, M.Kohl, G.Laveissiere, M.Lloyd, M.Makek, J.Marroncle, H.Merkel, P.Merle, U.Muller, L.Nungesser, B.Pasquini, R.Perez Benito, J.Pochodzalla, M.Potokar, G.Rosner, S.Sanchez Majos, M.Seimetz, S.Sirca, T.Spitzenberg, G.Tamas, R.Van de Vyver, L.Van Hoorebeke, Th.Walcher, M.Weis

Beam-helicity asymmetry in photon and pion electroproduction in the Δ (1232)-resonance region at Q2 = 0.35(GeV/c)2

doi: 10.1140/epja/i2006-10277-3
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2007ME24      Phys.Rev.Lett. 99, 132301 (2007)

H.Merkel, P.Achenbach, C.Ayerbe Gayoso, J.C.Bernauer, R.Bohm, D.Bosnar, B.Cheymol, M.O.Distler, L.Doria, H.Fonvieille, J.Friedrich, P.Janssens, M.Makek, U.Muller, L.Nungesser, J.Pochodzalla, M.Potokar, S.Sanchez Majos, B.S.Schlimme, S.Sirca, L.Tiator, Th.Walcher, M.Weinriefer, for the A1 Collaboration

Recoil Polarization and Beam-Recoil Double Polarization Measurement of η Electroproduction on the Proton in the Region of the S11(1535) Resonance

doi: 10.1103/PhysRevLett.99.132301
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2007SP06      Phys.Lett. B 651, 102 (2007)

N.F.Sparveris, P.Achenbach, C.Ayerbe Gayoso, D.Baumann, J.Bernauer, A.M.Bernstein, R.Bohm, D.Bosnar, T.Botto, A.Christopoulou, D.Dale, M.Ding, M.O.Distler, L.Doria, J.Friedrich, A.Karabarbounis, M.Makek, H.Merkel, U.Muller, I.Nakagawa, R.Neuhausen, L.Nungesser, C.N.Papanicolas, A.Piegsa, J.Pochodzalla, M.Potokar, M.Seimetz, S.Sirca, S.Stave, S.Stiliaris, Th.Walcher, M.Weis

Determination of quadrupole strengths in the γ*p → Δ(1232) transition at Q2 = 0.20 (GeV/c)2

doi: 10.1016/j.physletb.2007.04.056
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2007WA44      Eur.Phys.J. A 34, 447 (2007), Erratum Eur.Phys.J. A 39, 137 (2009)

Th.Walcher, H.Arenhovel, K.Aulenbacher, R.Barday, A.Jankowiak

A surprising method for polarising antiprotons

doi: 10.1140/epja/i2007-10462-x
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2006EL02      Eur.Phys.J. A 27, 91 (2006)

D.Elsner, A.Sule, P.Barneo, P.Bartsch, D.Baumann, J.Bermuth, R.Bohm, D.Bosnar, M.Ding, M.Distler, D.Drechsel, I.Ewald, J.Friedrich, J.M.Friedrich, S.Grozinger, P.Jennewein, S.Kamalov, F.H.Klein, M.Kohl, K.W.Krygier, H.Merkel, P.Merle, U.Muller, R.Neuhausen, Th.Pospischil, M.Potokar, G.Rosner, H.Schmieden, M.Seimetz, O.Strahle, L.Tiator, Th.Walcher, M.Weis

Measurement of the LT-asymmetry in π0 electroproduction at the energy of the Δ(1232)-resonance

NUCLEAR REACTIONS 1H(polarized e, e'π0), E=855 MeV; measured longitudinal-transverse asymmetry at forward and backward angles; deduced multipole ratios. Comparison with model predictions and other data.

doi: 10.1140/epja/i2005-10212-2
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2006MI22      Eur.Phys.J. A 29, 261 (2006); Erratum Eur.Phys.J. A 30, 469 (2006)

D.G.Middleton, J.R.M.Annand, C.Barbieri, P.Barneo, P.Bartsch, D.Baumann, J.Bermuth, D.Bosnar, H.P.Blok, R.Bohm, M.Ding, M.O.Distler, D.Elsner, J.Friedrich, C.Giusti, D.I.Glazier, P.Grabmayr, S.Grozinger, T.Hehl, J.Heim, W.H.A.Hesselink, E.Jans, F.Klein, M.Kohl, L.Lapikas, I.J.D.MacGregor, I.Martin, J.C.McGeorge, H.Merkel, P.Merle, F.Moschini, U.Muller, Th.Pospischil, G.Rosner, H.Schmieden, M.Seimetz, A.Sule, H.de Vries, Th.Walcher, D.P.Watts, M.Weis, B.Zihlmann

First measurements of the 16O(e, e'pn)14N reaction

NUCLEAR REACTIONS 2H, 16O(e, e'np), E=855 MeV; measured particle spectra. 14N deduced excited states.

doi: 10.1140/epja/i2005-10314-9
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2005AH01      Eur.Phys.J. A 23, 113 (2005)

J.Ahrens, V.M.Alexeev, J.R.M.Annand, H.J.Arends, R.Beck, G.Caselotti, S.N.Cherepnya, D.Drechsel, L.V.Filkov, K.Fohl, I.Giller, P.Grabmayr, T.Hehl, D.Hornidge, V.L.Kashevarov, M.Kotulla, D.Krambrich, B.Krusche, M.Lang, J.C.McGeorge, I.J.D.MacGregor, V.Metag, M.Moinester, R.Novotny, M.Pfeiffer, M.Rost, S.Schadmand, S.Scherer, A.Thomas, C.Unkmeir, Th.Walcher

Measurement of the π+-meson polarizabilities via the γp → γπ+n reaction

NUCLEAR REACTIONS 1H(γ, π+γ), E=537-817 MeV; measured Eγ, En, (pion)nγ-coin, σ(θ); deduced pion polarizabilities. Tagged photon beam, comparison with model predictions.

doi: 10.1140/epja/i2004-10056-2
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2005AH07      Eur.Phys.J. A 26, 135 (2005)

J.Ahrens, S.Altieri, J.R.M.Annand, H.-J.Arends, R.Beck, A.Braghieri, N.d'Hose, H.Dutz, S.Goertz, P.Grabmayr, S.Hasegawa, E.Heid, H.Holvoet, L.Van Hoorebeke, N.Horikawa, T.Iwata, O.Jahn, P.Jennewein, R.Kondratiev, J.Krimmer, M.Lang, B.Lannoy, K.Livingston, J.C.McGeorge, W.Meyer, A.Panzeri, P.Pedroni, T.Pinelli, I.Preobrajenski, G.Reicherz, G.Rosner, M.Rost, T.Rostomyan, D.Ryckbosch, M.Schumacher, B.Seitz, G.Tamas, A.Thomas, R.van de Vyver, Th.Walcher, F.Zapadtka

Measurement of the G asymmetry for the γp → Nπ channels in the Δ(1232) resonance region

NUCLEAR REACTIONS 1H(polarized γ, π0), (polarized γ, π+), e ≈ 340 MeV; measured σ(θ), G asymmetries, related polarization observables. Polarized target.

doi: 10.1140/epja/i2005-10158-3
Citations: PlumX Metrics


2005GL03      Eur.Phys.J. A 24, 101 (2005)

D.I.Glazier, M.Seimetz, J.R.M.Annand, H.Arenhovel, M.A.Antelo, C.Ayerbe, P.Bartsch, D.Baumann, J.Bermuth, R.Bohm, D.Bosnar, M.Ding, M.O.Distler, D.Elsner, J.Friedrich, S.Hedicke, P.Jennewein, G.J.Manas, F.H.Klein, F.Klein, M.Kohl, K.W.Krygier, K.Livingston, I.J.D.MacGregor, M.Makek, H.Merkel, P.Merle, D.Middleton, U.Muller, R.Neuhausen, L.Nungesser, M.Ostrick, R.Perez Benito, J.Pochodzalla, Th.Pospischil, M.Potokar, A.Reiter, G.Rosner, J.Sanner, H.Schmieden, A.Sule, Th.Walcher, D.P.Watts, M.Weis, and the A1 Collaboration

Measurement of the electric form factor of the neutron at Q2 = 0.3-0.8 (GeV/c)2

NUCLEAR REACTIONS 2H(polarized e, e'n), E=660, 855, 883 MeV; measured asymmetry, polarization transfer. 1n deduced electric form factor.

doi: 10.1140/epja/i2004-10115-8
Citations: PlumX Metrics


2005WA10      Nucl.Phys. A752, 185c (2005)

T.Walcher

Physics at MAMI C

doi: 10.1016/j.nuclphysa.2005.02.151
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2004AN27      Eur.Phys.J. A 22, 449 (2004)

K.A.Aniol, M.B.Epstein, E.Gama, D.J.Margaziotis, W.Bertozzi, J.P.Chen, D.Dale, R.E.J.Florizone, S.Gilad, A.J.Sarty, J.A.Templon, S.P.Van Verst, J.Zhao, Z.-L.Zhou, P.Bartsch, W.U.Boeglin, R.Boehm, M.O.Distler, I.Ewald, J.M.Friedrich, J.M.Friedrich, R.Geiges, P.Jennewein, M.Kahrau, K.W.Krygier, A.Liesenfeld, H.Merkel, K.Merle, U.Muller, R.Neuhausen, E.A.J.M.Offermann, Th.Pospischil, G.Rosner, H.Schmieden, A.Wagner, Th.Walcher, M.Kuss, A.Richter, G.Schrieder, K.Bohinc, M.Potokar, S.Sirca, J.M.Udias, J.R.Vignote, R.Schiavilla

Measurement of RLT and ATL in the 4He(e, e'p)3H reaction at pmiss of 130-300 MeV/c

NUCLEAR REACTIONS 4He(e, e'p), E=675, 855 MeV; measured σ(E, θ), transverse-longitudinal asymmetry, response function. Comparison with model predictions.

doi: 10.1140/epja/i2004-10040-x
Citations: PlumX Metrics


2003BE39      Phys.Lett. B 564, 199 (2003)

J.Bermuth, P.Merle, C.Carasco, D.Baumann, R.Bohm, D.Bosnar, M.Ding, M.O.Distler, J.Friedrich, J.M.Friedrich, J.Golak, W.Glockle, M.Hauger, W.Heil, P.Jennewein, J.Jourdan, H.Kamada, A.Klein, M.Kohl, B.Krusche, K.W.Krygier, H.Merkel, U.Muller, R.Neuhausen, A.Nogga, Ch.Normand, E.Otten, Th.Pospischil, M.Potokar, D.Rohe, H.Schmieden, J.Schmiedeskamp, M.Seimetz, I.Sick, S.Sirca, R.Skibinski, G.Testa, Th.Walcher, G.Warren, M.Weis, H.Witala, H.Wohrle, M.Zeier

The neutron charge from factor and target analyzing powers from 3He(pol)(e(pol), e'n) scattering

NUCLEAR REACTIONS 3He(polarized e, e'n), E=854.5 MeV; measured particle spectra, asymmetries, analyzing power; deduced final state interaction effects. 1n deduced charge form factor. Polarized target.

doi: 10.1016/S0370-2693(03)00725-1
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2003CA09      Phys.Lett. B 559, 41 (2003)

C.Carasco, J.Bermuth, P.Merle, P.Bartsch, D.Baumann, R.Bohm, D.Bosnar, M.Ding, M.O.Distler, J.Friedrich, J.M.Friedrich, J.Golak, W.Glockle, M.Hauger, W.Heil, P.Jennewein, J.Jourdan, H.Kamada, A.Klein, M.Kohl, K.W.Krygier, H.Merkel, U.Muller, R.Neuhausen, A.Nogga, Ch.Normand, E.Otten, Th.Pospischil, M.Potokar, D.Rohe, H.Schmieden, J.Schmiedeskamp, M.Seimetz, I.Sick, S.Sirca, R.Skibinski, G.Testa, Th.Walcher, G.Warren, M.Weis, H.Witala, H.Wohrle, M.Zeier

Final state interaction effects in 3He(pol)(e(pol), e'p)

NUCLEAR REACTIONS 3He(polarized e, e'p), E=854.5 MeV; measured Ep, σ(θ), asymmetries; deduced final-state interaction effects. Polarized target, comparison with model predictions.

doi: 10.1016/S0370-2693(03)00306-X
Citations: PlumX Metrics


2003FR19      Eur.Phys.J. A 17, 607 (2003)

J.Friedrich, Th.Walcher

A coherent interpretation of the form factors of the nucleon in terms of a pion cloud and constituent quarks

NUCLEAR STRUCTURE 1n, 1H; analyzed electric and magnetic form factor data; deduced pion cloud features. Constituent quark model.

doi: 10.1140/epja/i2003-10025-3
Citations: PlumX Metrics


2003KO32      Phys.Rev. C 67, 065204 (2003)

M.Kohl, M.A.Antelo, C.Ayerbe, D.Baumann, R.Bohm, D.Bosnar, M.Ding, M.O.Distler, J.Friedrich, J.Garcia Llongo, P.Jennewein, G.J.Manas, H.Merkel, P.Merle, U.Muller, R.Neuhausen, L.Nungesser, R.Perez Benito, J.Pochodzalla, M.Potokar, C.Rangacharyulu, A.Richter, G.Schrieder, M.Seimetz, Th.Walcher, M.Weis

Search for narrow nucleon resonances below pion threshold in the H(e, e'π+)X and 2H(e, e'p)X reactions

NUCLEAR REACTIONS 1H(e, e'π+X), E=660, 855 MeV; 2H(e, e'pX), E=660, 883 MeV; measured missing mass spectra; deduced nucleon resonance features.

doi: 10.1103/PhysRevC.67.065204
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2002BA34      Phys.Rev.Lett. 88, 142001 (2002)

P.Bartsch, D.Baumann, J.Bermuth, R.Bohm, K.Bohinc, D.Bosnar, M.Ding, M.Distler, D.Drechsel, D.Elsner, I.Ewald, J.Friedrich, J.M.Friedrich, S.Grozinger, S.Hedicke, P.Jennewein, M.Kahrau, S.S.Kamalov, F.Klein, K.W.Krygier, A.Liesenfeld, H.Merkel, P.Merle, U.Muller, R.Neuhausen, Th.Pospischil, M.Potokar, G.Rosner, H.Schmieden, M.Seimetz, A.Sule, L.Tiator, A.Wagner, Th.Walcher, M.Weis

Measurement of the Beam-Helicity Asymmetry in the p(e(pol), e'p)π0 Reaction at the Energy of the Δ(1232) Resonance

NUCLEAR REACTIONS 1H(polarized e, e'π0), (polarized e, e'pX), E=854.5 MeV; measured missing mass, beam-helicity asymmetry. Comparison with model predictions.

doi: 10.1103/PhysRevLett.88.142001
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2002KO16      Phys.Lett. 530B, 67 (2002)

M.Kohl, P.Bartsch, D.Baumann, J.Bermuth, R.Bohm, K.Bohinc, S.Derber, M.Ding, M.O.Distler, I.Ewald, J.Friedrich, J.M.Friedrich, P.Jennewein, M.Kahrau, S.S.Kamalov, A.Kozlov, K.W.Krygier, M.Kuss, A.Liesenfeld, H.Merkel, P.Merle, U.Muller, R.Neuhausen, Th.Pospischil, M.Potokar, C.Rangacharyulu, A.Richter, D.Rohe, G.Rosner, H.Schmieden, G.Schrieder, M.Seimetz, S.Sirca, T.Suda, L.Tiator, M.Urban, A.Wagner, Th.Walcher, J.Wambach, M.Weis, A.Wirzba

Self Energies of the Pion and the Δ Isobar from the 3He(e, e'π+)3H Reaction

NUCLEAR REACTIONS 3He(e, e'π+), E=855 MeV; measured σ(θ, E), longitudinal and transverse σ(θ); deduced reduction in π+ mass. Chiral Perturbation Theory.

doi: 10.1016/S0370-2693(02)01345-X
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2002KU01      Phys.Lett. 524B, 26 (2002)

G.Kubon, H.Anklin, P.Bartsch, D.Baumann, W.U.Boeglin, K.Bohinc, R.Bohm, M.O.Distler, I.Ewald, J.Friedrich, J.M.Friedrich, M.Hauger, A.Honegger, P.Jennewein, J.Jourdan, M.Kahrau, K.W.Krygier, A.Liesenfeld, H.Merkel, U.Muller, R.Neuhausen, Ch.Normand, Th.Petitjean, Th.Pospischil, M.Potokar, D.Rohe, G.Rosner, H.Schmieden, I.Sick, S.Sirca, Ph.Trueb, A.Wagner, Th.Walcher, G.Warren, M.Weis, H.Wohrle, M.Zeier, J.Zhao, B.Zihlmann

Precise Neutron Magnetic Form Factors

NUCLEAR REACTIONS 2H(e, e'p), (e, e'n), E=555, 600, 855 MeV; measured relative σ(Q2). 1n deduced magnetic form factors.

doi: 10.1016/S0370-2693(01)01386-7
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2001DI06      Phys.Lett. 500B, 47 (2001)

S.Dieterich, P.Bartsch, D.Baumann, J.Bermuth, K.Bohinc, R.Bohm, D.Bosnar, S.Derber, M.Ding, M.Distler, I.Ewald, J.Friedrich, J.M.Friedrich, R.Gilman, C.Glashausser, M.Hauger, P.Jennewein, J.Jourdan, J.J.Kelly, M.Kohl, A.Kozlov, K.W.Krygier, G.Kumbartzki, J.Lac, A.Liesenfeld, H.Merkel, U.Muller, R.Neuhausen, Th.Pospischil, R.D.Ransome, D.Rohe, G.Rosner, H.Schmieden, M.Seimetz, I.Sick, S.Strauch, J.M.Udias, J.R.Vignote, A.Wagner, Th.Walcher, G.Warren, M.Weis

Polarization Transfer in the 4He((pol)e, e'p(pol))3H Reaction

NUCLEAR REACTIONS 4He(polarized e, e'p), E=854.5 MeV; measured polarization transfer vs missing momentum. Comparison with model predictions.

doi: 10.1016/S0370-2693(01)00052-1
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2001EW01      Phys.Lett. 499B, 238 (2001)

I.Ewald, P.Bartsch, D.Baumann, J.Bermuth, A.M.Bernstein, K.Bohinc, R.Bohm, N.Clawiter, S.Derber, M.Ding, M.O.Distler, J.Friedrich, J.M.Friedrich, M.Kahrau, M.Kohl, A.Kozlov, K.W.Krygier, A.Liesenfeld, H.Merkel, P.Merle, U.Muller, R.Neuhausen, M.Pavan, Th.Pospischil, M.Potokar, D.Rohe, G.Rosner, H.Schmieden, S.Sirca, A.Wagner, Th.Walcher, M.Weis

Coherent π0 Threshold Production from the Deuteron at Q2 = 0.1 GeV2/c2

NUCLEAR REACTIONS 2H(e, e'π0), E=345, 435, 720 MeV; measured missing mass distributions, σ(θ), σ; deduced partial wave contributions. Comparison with Chiral Perturbation theory.

doi: 10.1016/S0370-2693(00)01396-4
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2001KO24      Nucl.Phys. A684, 460c (2001)

A.Kozlov, K.A.Aniol, P.Bartsch, D.Baumann, W.Bertozzi, R.Bohm, K.Bohinc, J.P.Chen, D.Dale, L.Dennis, S.Derber, M.Ding, M.O.Distler, P.Dragovitsch, I.Ewald, K.G.Fissum, R.E.J.Florizone, J.Friedrich, J.M.Friedrich, R.Geiges, S.Gilad, P.Jennewein, M.Kahrau, M.Kohl, K.W.Krygier, A.Liesenfeld, D.J.Margaziotis, H.Merkel, P.Merle, U.Muller, R.Neuhausen, T.Pospischil, G.Riccardi, R.Roche, G.Rosner, D.Rowntree, A.J.Sarty, H.Schmieden, S.Sirca, J.A.Templon, M.N.Thompson, A.Wagner, Th.Walcher, M.Weis, J.Zhao, Z.Zhou

The Longitudinal and Transverse Response of the 4He(e, e'p) Reaction in the Dip Region

NUCLEAR REACTIONS 4He(e, e'p), E=570, 675, 855 MeV; measured σ(E, θ), momentum distributions; deduced reaction mechanism features.

doi: 10.1016/S0375-9474(01)00504-8
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2001PO08      Phys.Rev.Lett. 86, 2959 (2001)

Th.Pospischil, P.Bartsch, D.Baumann, J.Bermuth, R.Bohm, K.Bohinc, S.Derber, M.Ding, M.Distler, D.Drechsel, D.Elsner, I.Ewald, J.Friedrich, J.M.Friedrich, R.Geiges, S.Hedicke, P.Jennewein, M.Kahrau, S.S.Kamalov, F.Klein, K.W.Krygier, J.Lac, A.Liesenfeld, J.McIntyre, H.Merkel, P.Merle, U.Muller, R.Neuhausen, M.Potokar, R.D.Ransome, D.Rohe, G.Rosner, H.Schmieden, M.Seimetz, S.Sirca, I.Sick, A.Sule, L.Tiator, A.Wagner, Th.Walcher, G.A.Warren, M.Weis

Measurement of the Recoil Polarization in the p(e(pol), e'p(pol)π0 Reaction at the Δ(1232) Resonance

NUCLEAR REACTIONS 1H(polarized e, e'π0), E=854.4 MeV; measured recoil proton polarization components; deduced Coulomb quadrupole to magnetic dipole ratio. Mainz unitary isobar model.

doi: 10.1103/PhysRevLett.86.2959
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2001PO27      Eur.Phys.J. A 12, 125 (2001)

Th.Pospischil, P.Bartsch, D.Baumann, R.Bohm, K.Bohinc, M.Ding, S.Derber, M.O.Distler, D.Elsner, I.Ewald, J.Friedrich, J.M.Friedrich, S.Grozinger, S.Hedicke, P.Jennewein, J.Jourdan, M.Kahrau, F.Klein, K.W.Krygier, J.Lac, A.Liesenfeld, S.Malov, J.McIntyre, H.Merkel, P.Merle, U.Muller, R.Neuhausen, M.Potokar, R.D.Ransome, D.Rohe, G.Rosner, J.Sanner, H.Schmieden, M.Seimetz, S.Sirca, I.Sick, O.Strahle, A.Sule, A.Wagner, Th.Walcher, M.Weis

Measurement of GEp/GMp via Polarization Transfer at Q2 = 0.4 GeV/c2

NUCLEAR REACTIONS 1H(polarized e, e), E=854.4 MeV; measured polarization transfer; deduced form factor ratio.

doi: 10.1007/s100500170046
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2001SC51      Phys.Rev.Lett. 87, 232501 (2001)

A.Schmidt, P.Achenbach, J.Ahrens, H.J.Arends, R.Beck, A.M.Bernstein, V.Hejny, M.Kotulla, B.Krusche, V.Kuhr, R.Leukel, I.J.D.McGregor, J.C.McGeorge, V.Metag, V.M.Olmos de Leon, F.Rambo, U.Siodlaczek, H.Stroher, Th.Walcher, J.Weiss, F.Wissmann, M.Wolf

Test of Low-Energy Theorems for 1H(γ(pol), π0)1H in the Threshold Region

NUCLEAR REACTIONS 1H(polarized γ, π0), E=144-168 MeV; measured σ, σ(θ), photon asymmetry; deduced partial wave amplitudes. Tagged-photon beam.

doi: 10.1103/PhysRevLett.87.232501
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2001SI24      Eur.Phys.J. A 10, 365 (2001)

U.Siodlaczek, P.Achenbach, J.Ahrens, J.R.M.Annand, H.-J.Arends, R.Beck, R.Bilger, H.Clement, V.Hejny, M.Kotulla, B.Krusche, V.Kuhr, R.Leukel, J.C.McGeorge, V.Metag, R.Novotny, V.Olmos de Leon, F.Rambo, M.Schepkin, A.Schmidt, I.Seluzhenkov, H.Stroher, G.J.Wagner, Th.Walcher, J.Weiss, F.Wissmann, M.Wolf

Coherent and Incoherent π0 Photoproduction from the Deuteron

NUCLEAR REACTIONS 2H(γ, π0), (γ, π0n), E=140-306 MeV; measured missing energy spectra, σ(θ), σ. Tagged photons.

doi: 10.1007/s100500170120
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2001WA06      Nucl.Phys. A680, 25c (2001)

T.Walcher

Latest Results from the Mainz Microtron MAMI

doi: 10.1016/S0375-9474(00)00383-3
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2001WA21      Phys.Rev. C63, 064605 (2001)

T.Walcher

Schematic Model for Narrow Δ(1232) Resonances Bound in a Nucleus

NUCLEAR STRUCTURE 12C; calculated bound Δ resonance state features.

doi: 10.1103/PhysRevC.63.064605
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2001WA31      Nucl.Phys. A690, 78c (2001)

T.Walcher

Nucleon-Nucleon Correlations in Nuclei

NUCLEAR REACTIONS 12C(e, e'2pX), E=705 MeV; 16O(e, e'2p), E=855 MeV; measured proton spectra, σ(E, θ); deduced nucleon-nucleon potential features.

doi: 10.1016/S0375-9474(01)00932-0
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2001WA47      Phys.Lett. 522B, 10 (2001)

T.Walcher

A Model for the Mass-Number Independence of the Antiproton Annihilation on Nuclei at Low Energies

doi: 10.1016/S0370-2693(01)01284-9
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2000BE05      Phys.Rev. C61, 035204 (2000)

R.Beck, H.P.Krahn, J.Ahrens, J.R.M.Annand, H.J.Arends, G.Audit, A.Braghieri, N.d'Hose, D.Drechsel, O.Hanstein, J.C.McGeorge, R.O.Owens, P.Pedroni, T.Pinelli, G.Tamas, L.Tiator, Th.Walcher

Determination of the E2/M1 Ratio in the γN → Δ(1232) Transition from a Simultaneous Measurement of p(γ(pol), p)π0 and p(γ(pol), π+)n

NUCLEAR REACTIONS 1H(polarized γ, π0), (polarized γ, π+), E=270-420 MeV; measured σ(θ), asymmetry; deduced Δ resonance associated E2/M1 ratio. Tagged photons.

doi: 10.1103/PhysRevC.61.035204
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2000FR07      Nucl.Phys. A663-664, 389c (2000)

J.M.Friedrich, P.Bartsch, D.Baumann, J.Berthot, P.Y.Bertin, V.Breton, W.U.Boeglin, R.Bohm, N.d'Hose, T.Caprano, S.Derber, N.Degrande, M.Ding, M.O.Distler, J.E.Ducret, R.Edelhoff, I.Ewald, H.Fonvieille, J.Friedrich, R.Geiges, Th.Gousset, P.A.M.Guichon, H.Holvoet, Ch.Hyde-Wright, P.Jennewein, M.Kahrau, S.Kerhoas, M.Korn, H.Kramer, K.W.Krygier, V.Kunde, B.Lannoy, D.Lhuillier, A.Liesenfeld, C.Marchand, D.Marchand, J.Martino, H.Merkel, K.Merle, P.Merle, G.De Meyer, J.Mougey, R.Neuhausen, E.Offermann, Th.Pospischil, G.Quemener, O.Ravel, Y.Roblin, J.Roche, D.Rohe, G.Rosner, D.Ryckbosch, P.Sauer, H.Schmieden, S.Schardt, G.Tamas, M.Tytgat, M.Vanderhaeghen, L.Van Hoorebeke, R.Van de Vyver, J.Van de Wiele, P.Vernin, A.Wagner, Th.Walcher

The First Dedicated Virtual Compton Scattering Experiment at MAMI

NUCLEAR REACTIONS 1H(e, e'γ), E not given; measured ep-coin, σ(E, θ(e), θ(p)); deduced structure function.

doi: 10.1016/S0375-9474(99)00624-7
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2000RO21      Phys.Rev.Lett. 85, 708 (2000)

J.Roche, J.M.Friedrich, D.Lhuillier, P.Bartsch, D.Baumann, J.Berthot, P.Y.Bertin, V.Breton, W.U.Boeglin, R.Bohm, N.D'Hose, S.Derber, N.Degrande, M.Ding, M.O.Distler, J.E.Ducret, I.Ewald, H.Fonvieille, J.Friedrich, P.A.M.Guichon, H.Holvoet, Ch.E.Hyde-Wright, P.Jennewein, M.Kahrau, S.Kerhoas, K.W.Krygier, B.Lannoy, A.Liesenfeld, C.Marchand, D.Marchand, J.Marroncle, J.Martino, H.Merkel, P.Merle, G.De Meyer, J.Mougey, U.Muller, R.Neuhausen, Th.Pospischil, G.Quemener, O.Ravel, Y.Roblin, D.Rohe, G.Rosner, D.Ryckbosch, H.Schmieden, G.Tamas, M.Tytgat, M.Vanderhaeghen, L.Van Hoorebeke, R.Van de Vyver, J.Van de Wiele, P.Vernin, A.Wagner, Th.Walcher, M.Weiss

First Determination of Generalized Polarizabilities of the Proton by a Virtual Compton Scattering Experiment

NUCLEAR REACTIONS 1H(polarized e, e'γ), E=855 MeV; measured σ(E, θ(e), θ(p)). 1H deduced dynamic structure functions, generalized polarizibilities. High-resolution spectrometers, virtual Compton scattering.

doi: 10.1103/PhysRevLett.85.708
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2000SI10      Nucl.Phys. A663-664, 428c (2000)

U.Siodlaczek, P.Achenbach, J.Ahrens, H.-J.Arends, R.Beck, R.Bilger, H.Clement, V.Hejny, M.Kotulla, B.Krusche, V.Kuhr, R.Leukel, V.Metag, R.Novotny, V.Olmos de Leon, F.Rambo, M.Schepkin, A.Schmidt, M.Schumacher, H.Stroher, G.J.Wagner, Th.Walcher, J.Weiss, F.Wissmann, M.Wolf

Measurement of Coherent and Incoherent π0 Photoproduction Off the Deuteron with Tagged Photons Up to the Δ Region

NUCLEAR REACTIONS 2H(γ, π0), E=130-306 MeV; measured pions missing energy spectra, σ(θ). Tagged photons.

doi: 10.1016/S0375-9474(99)00675-2
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2000SI39      Eur.Phys.J. A 9, 309 (2000)

U.Siodlaczek, P.Achenbach, J.Ahrens, H.-J.Arends, R.Beck, R.Bilger, H.Clement, V.Hejny, J.D.Kellie, M.Kotulla, B.Krusche, V.Kuhr, R.Leukel, J.C.McGeorge, V.Metag, R.Novotny, V.Olmos de Leon, F.Rambo, M.Schepkin, A.Schmidt, H.Stroher, G.J.Wagner, Th.Walcher, J.Weiss, F.Wissmann, M.Wolf

Search for Narrow Dibaryon Resonances in Neutral Pion Photoproduction from the Deuteron

NUCLEAR REACTIONS 2H(γ, π0), E=140-300 MeV; measured σ(θ, E); deduced absence of resonances in the 2-baryon system.

doi: 10.1007/s100500070015
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2000WA09      Nucl.Phys. A666-667, 193c (2000)

T.Walcher

ELFE: An electron laboratory for Europe

doi: 10.1016/S0375-9474(00)00028-2
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2000WI05      Nucl.Phys. A663-664, 397c (2000)

F.Wissmann, P.Achenbach, J.Ahrens, H.-J.Arends, R.Beck, R.Bilger, M.Camen, G.P.Capitani, G.Caselotti, G.Galler, P.Grabmayr, F.Harter, T.Hehl, E.Heid, V.Hejny, O.Jahn, P.Jennewein, R.Kondratev, K.Kossert, M.Kotulla, B.Krusche, V.Kuhr, M.Lang, R.Leukel, M.I.Levchuk, V.Lisin, A.I.Lvov, A.M.Massone, V.Metag, A.Natter, R.Novotny, V.Olmos de Leon, P.Ottonello, J.Peise, A.Polonsky, I.Preobrashenskij, S.Proff, F.Rambo, A.Robbiano, D.Rosenkranz, M.Sanzone, E.Schilling, A.Schmidt, M.Schumacher, B.Seitz, U.Siodlaczek, F.Smend, H.Stroher, H.Vorwerk, Th.Walcher, J.Weiss, M.Wolf, S.Wolf, F.Zapadtka

Compton Scattering from the Free and Bound Proton Above π-Threshold

NUCLEAR REACTIONS 1,2H(γ, γ'X), E=200-800 MeV; measured σ(θ).

doi: 10.1016/S0375-9474(99)00626-0
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1999BA31      Eur.Phys.J. A 4, 209 (1999)

P.Bartsch, D.Baumann, J.Bermuth, K.Bohinc, R.Bohm, D.Bosnar, N.Clawiter, S.Derber, M.Ding, M.O.Distler, A.Ebbes, I.Ewald, J.M.Friedrich, J.Friedrich, P.Jennewein, M.Kahrau, M.Kohl, A.Kozlov, K.W.Krygier, M.Kuss, A.Liesenfeld, H.Merkel, K.Merle, U.Muller, R.Neuhausen, T.Pospischil, M.Potokar, D.Rohe, G.Rosner, H.Schmieden, S.Sirca, A.Wagner, T.Walcher, M.Weis, S.Wolf

Evidence for Narrow Δ0(1232) States in the 12C(e, e'pπ-)11C Reaction

NUCLEAR REACTIONS 12C(e, e'pπ-), E=600, 855 MeV; measured missing momentum, excitation energy spectra. 12C deduced bound Δ0 resonance states, widths. Triple coincidence measurement. Weak coupling model analysis.

doi: 10.1007/s100500050220
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1999BE58      Eur.Phys.J. A 6, 329 (1999)

J.Becker, H.G.Andresen, J.R.M.Annand, K.Aulenbacher, K.Beuchel, J.Blume-Werry, Th.Dombo, P.Drescher, M.Ebert, D.Eyl, A.Frey, P.Grabmayr, T.Grossmann, P.Hartmann, T.Hehl, W.Heil, C.Herberg, J.Hoffmann, J.D.Kellie, F.Klein, K.Livingston, M.Leduc, M.Meyerhoff, H.Moller, Ch.Nachtigall, A.Natter, M.Ostrick, E.W.Otten, R.O.Owens, S.Plutzer, E.Reichert, D.Rohe, M.Schafer, H.Schmieden, R.Sprengard, M.Steigerwald, K.-H.Steffens, R.Surkau, Th.Walcher, R.Watson, E.Wilms

Determination of the Neutron Electric Form Factor from the Reaction 3He(e, e'n) at Medium Momentum Transfer

NUCLEAR REACTIONS 3He(polarized e, e'n), E not given; measured σ(θ), asymmetry vs momentum transfer. 1n deduced electric form factor. Polarized target. Comparisons with previous results.

doi: 10.1007/s100500050351
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1999FL02      Phys.Rev.Lett. 83, 2308 (1999)

R.E.J.Florizone, W.Bertozzi, J.P.Chen, D.Dale, S.Gilad, A.J.Sarty, J.A.Templon, S.P.Van Verst, J.Zhao, Z.-L.Zhou, P.Bartsch, W.U.Boeglin, R.Bohm, M.O.Distler, I.Ewald, J.Friedrich, J.M.Friedrich, R.Geiges, P.Jennewein, M.Kahrau, K.W.Krygier, A.Liesenfeld, H.Merkel, K.Merle, U.Muller, R.Neuhausen, E.A.J.M.Offermann, Th.Pospischil, G.Rosner, H.Schmieden, A.Wagner, Th.Walcher, K.A.Aniol, M.B.Epstein, D.J.Margaziotis, M.Kuss, A.Richter, G.Schrieder, K.Bohinc, M.Potokar, S.Sirca

High-Precision Studies of the 3He(e, e'p) Reaction at the Quasielastic Peak

NUCLEAR REACTIONS 3He(e, e'p), E=540, 675, 855 MeV; measured σ(E, θ(p), θ(e)); deduced two-body-breakup, continuum momentum distributions. Quasielastic kinematics.

doi: 10.1103/PhysRevLett.83.2308
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1999HE16      Eur.Phys.J. A 5, 131 (1999)

C.Herberg, M.Ostrick, H.G.Andresen, J.R.M.Annand, K.Aulenbacher, J.Becker, P.Drescher, D.Eyl, A.Frey, P.Grabmayr, S.J.Hall, P.Hartmann, T.Hehl, W.Heil, J.Hoffmann, D.Ireland, J.D.Kellie, F.Klein, K.Livingston, Ch.Nachtigall, A.Natter, E.W.Otten, R.O.Owens, E.Reichert, D.Rohe, H.Schmieden, R.Sprengard, M.Steigerwald, K.-H.Steffens, Th.Walcher, R.Watson

Determination of the Neutron Electric Form Factor in the D(e, e'n)p Reaction and the Influence of Nuclear Binding

NUCLEAR REACTIONS 2H(e, e'n), E not given; measured recoil polarization ratio. 1n deduced electric form factor.

doi: 10.1007/s100500050268
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1999LI41      Phys.Lett. 468B, 20 (1999)

A.Liesenfeld, A.W.Richter, S.Sirca, K.I.Blomqvist, W.U.Boeglin, K.Bohinc, R.Bohm, M.Distler, D.Drechsel, R.Edelhoff, I.Ewald, J.Friedrich, J.M.Friedrich, R.Geiges, M.Kahrau, M.Korn, K.W.Krygier, V.Kunde, H.Merkel, K.Merle, U.Muller, R.Neuhausen, T.Pospischil, M.Potokar, A.Rokavec, G.Rosner, P.Sauer, S.Schardt, H.Schmieden, L.Tiator, B.Vodenik, A.Wagner, Th.Walcher, S.Wolf

A Measurement of the Axial Form Factor of the Nucleon by the p(e, e'π+)n Reaction at W = 1125 MeV

NUCLEAR REACTIONS 1H(e, e'π+), E=405-855 MeV; measured longitudinal, transverse σ(θ); deduced axial mass parameter. Effective Lagrangian model.

doi: 10.1016/S0370-2693(99)01204-6
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1999OS01      Phys.Rev.Lett. 83, 276 (1999)

M.Ostrick, C.Herberg, H.G.Andresen, J.R.M.Annand, K.Aulenbacher, J.Becker, P.Drescher, D.Eyl, A.Frey, P.Grabmayr, P.Hartmann, T.Hehl, W.Heil, J.Hoffmann, D.Ireland, J.D.Kellie, F.Klein, K.Livingston, Ch.Nachtigall, A.Natter, E.W.Otten, R.O.Owens, E.Reichert, D.Rohe, H.Schmieden, R.Sprengard, M.Steigerwald, K.-H.Steffens, Th.Walcher, R.Watson

Measurement of the Neutron Electric Form Factor GE, n in the Quasifree 2H(e(pol), e'n(pol))p Reaction

NUCLEAR REACTIONS 2H(polarized e, e'n), E=855 MeV; measured asymmetries, other polarization observables. 1n deduced electric form factor. Neutron polarimeter.

doi: 10.1103/PhysRevLett.83.276
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1999RO19      Phys.Rev.Lett. 83, 4257 (1999)

D.Rohe, P.Bartsch, D.Baumann, J.Becker, J.Bermuth, K.Bohinc, R.Bohm, S.Buttazzoni, T.Caprano, N.Clawiter, A.Deninger, S.Derber, M.Ding, M.Distler, A.Ebbes, M.Ebert, I.Ewald, J.Friedrich, J.M.Friedrich, R.Geiges, T.Grossmann, M.Hauger, W.Heil, A.Honegger, P.Jennewein, J.Jourdan, M.Kahrau, A.Klein, M.Kohl, K.W.Krygier, G.Kubon, A.Liesenfeld, H.Merkel, K.Merle, P.Merle, M.Muhlbauer, U.Muller, R.Neuhausen, E.W.Otten, Th.Petitjean, Th.Pospischil, M.Potokar, G.Rosner, H.Schmieden, I.Sick, S.Sirca, R.Surkau, A.Wagner, Th.Walcher, G.Warren, M.Weis, H.Wohrle, M.Zeier

Measurement of the Neutron Electric Form Factor Gen at 0.67 (GeV/c)2 via 3He(pol)(e(pol), e'n)

NUCLEAR REACTIONS 3He(polarized e, e'n), E=854 MeV; measured electron spectra, neutron spectra, asymmetries. 1n deduced electric form factor. Polarized target.

doi: 10.1103/PhysRevLett.83.4257
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1999RO30      Nucl.Phys. (Supplement) A654, 547c (1999)

J.Roche, P.Bartsch, J.Berthot, P.Y.Bertin, V.Breton, W.U.Boeglin, R.Bohm, N.d'Hose, T.Caprano, S.Derber, N.Degrande, M.Distler, J.E.Ducret, R.Edelhoff, I.Ewald, H.Fonvieille, J.Friedrich, J.M.Friedrich, R.Geiges, Th.Gousset, P.A.M.Guichon, H.Holvoet, Ch.Hyde-Wright, P.Jennewein, M.Kahrau, S.Kerhoas, M.Korn, H.Kramer, K.W.Krygier, V.Kunde, B.Lannoy, D.Lhuillier, A.Liesenfeld, C.Marchand, D.Marchand, J.Martino, H.Merkel, K.Merle, P.Merle, G.De Meyer, J.Mougey, R.Neuhausen, E.Offermann, Th.Pospischil, G.Quemener, O.Ravel, Y.Roblin, G.Rosner, D.Ryckbosch, P.Sauer, H.Schmieden, S.Schardt, G.Tamas, M.Tytgat, M.Vanderhaeghen, L.Van Hoorebeke, R.Van de Vyver, J.Van de Wiele, P.Vernin, A.Wagner, Th.Walcher, S.Wolf

Virtual Compton Scattering Under π0 Threshold at Q2 = 0.33 GeV2. Preliminary Results.

NUCLEAR REACTIONS 1H(e, e'γ), E=750-855 MeV; measured ep-coin, photon polarization, σ(θ). Virtual Compton scattering.

doi: 10.1016/S0375-9474(00)88498-5
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1999WI15      Nucl.Phys. A660, 232 (1999)

F.Wissmann, V.Kuhr, O.Jahn, H.Vorwerk, P.Achenbach, J.Ahrens, H.-J.Arends, R.Beck, M.Camen, G.Caselotti, E.Heid, V.Hejny, P.Jennewein, R.Kondratev, K.Kossert, M.Kotulla, B.Krusche, M.Lang, R.Leukel, M.I.Levchuk, V.Lisin, V.Metag, R.Novotny, V.Olmos de Leon, A.Polonsky, I.Preobrashenskij, F.Rambo, D.Rosenkranz, E.Schilling, A.Schmidt, M.Schumacher, B.Seitz, U.Siodlaczek, H.Stroher, A.Thomas, Th.Walcher, J.Weiss, M.Wolf, F.Zapadtka

Compton Scattering from the Free and Bound Proton at Backward Angles Above π-Threshold

NUCLEAR REACTIONS 1H(γ, γ'), E=200-410 MeV; 2H(γ, γ'), E=200-290 MeV; measured Eγ, σ(θ); deduced proton spin polarizabilities. Dispersion theory.

doi: 10.1016/S0375-9474(99)00419-4
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1998AN13      Phys.Lett. 428B, 248 (1998)

H.Anklin, L.J.deBever, K.I.Blomqvist, W.U.Boeglin, R.Bohm, M.Distler, R.Edelhoff, J.Friedrich, D.Fritschi, R.Geiges, J.Gotz, A.Honegger, P.Jennewein, J.Jourdan, M.Kahrau, M.Korn, H.Kramer, K.W.Krygier, G.Kubon, V.Kunde, A.Liesenfeld, G.Masson, K.Merle, R.Neuhausen, E.A.J.M.Offermann, Th.Petitjean, Th.Pospischil, M.Potokar, L.M.Qin, A.W.Richter, A.Rokavec, G.Rosner, P.Sauer, S.Schardt, I.Sick, S.Sirca, Ph.Trueb, M.Tuccillo, B.Vodenik, A.Wagner, Th.Walcher, G.Warren, S.Wolf, J.Zhao, M.Zeier, B.Zihlmann

Precise Measurements of the Neutron Magnetic Form Factor

NUCLEAR REACTIONS 2H(e, e'p), (e, e'n), E not given; measured σ ratios vs momentum transfer; deduced neutron magnetic form factor G(mn).

doi: 10.1016/S0370-2693(98)00442-0
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1998BL06      Phys.Lett. 421B, 71 (1998)

K.I.Blomqvist, W.U.Boeglin, R.Bohm, M.Distler, R.Edelhoff, J.Friedrich, R.Geiges, M.K.Jones, M.Kahrau, M.Korn, H.Kramer, K.W.Krygier, V.Kunde, M.Kuss, A.Liesenfeld, K.Merle, C.L.Morris, R.Neuhausen, E.A.J.M.Offermann, Th.Pospischil, M.Potokar, R.D.Ransome, A.W.Richter, B.G.Ritchie, A.Rokavec, G.Rosner, J.Ryckebusch, P.Sauer, S.Schardt, B.Vodenik, A.Wagner, Th.Walcher, S.Wolf, M.K.Yadav

Investigation of Short-Range Nucleon-Nucleon Correlations using the Reaction 12C(e, e'pp) in Close to 4π Geometry

NUCLEAR REACTIONS 12C(e, e'2p), E=705 MeV; measured nine-fold σ(E, θ), missing momentum spectra; deduced short-range nucleon-nucleon correlations.

doi: 10.1016/S0370-2693(98)00024-0
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1998BL07      Phys.Lett. 424B, 33 (1998)

K.I.Blomqvist, W.U.Boeglin, R.Bohm, M.Distler, R.Edelhoff, I.Ewald, R.Florizone, J.Friedrich, R.Geiges, J.Jourdan, M.Kahrau, M.Korn, H.Kramer, K.W.Krygier, V.Kunde, M.Kuss, A.Liesenfeld, K.Merle, R.Neuhausen, E.A.J.M.Offermann, Th.Pospischil, M.Potokar, A.W.Richter, A.Rokavec, G.Rosner, P.Sauer, S.Schardt, A.Serdarevic, B.Vodenik, I.Sick, S.Sirca, A.Wagner, Th.Walcher, S.Wolf

Large Recoil Momenta in the D(e, e'p)n Reaction

NUCLEAR REACTIONS 2H(e, e'p), E=855.11 MeV; measured σ(θ(e), θ(p)) vs missing momentum; deduced possible virtual nucleon excitation role. Model comparisons.

doi: 10.1016/S0370-2693(98)00151-8
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1998DI03      Phys.Rev.Lett. 80, 2294 (1998)

M.O.Distler, A.M.Bernstein, K.I.Blomqvist, W.U.Boeglin, R.Bohm, R.Edelhoff, J.Friedrich, R.Geiges, M.Kahrau, M.Korn, H.Kramer, K.W.Krygier, V.Kunde, M.Kuss, A.Liesenfeld, H.Merkel, K.Merle, R.Neuhausen, Th.Pospischil, M.Potokar, A.Rokavec, A.W.Richter, G.Rosner, P.Sauer, St.Schardt, H.Schmieden, S.Sirca, B.Vodenik, A.Wagner, Th.Walcher, St.Wolf

Measurement of Separated Structure Functions in the p(e, e'p)π0 Reaction at Threshold and Chiral Perturbation Theory

NUCLEAR REACTIONS 1H(e, e'π0), E=435, 555, 855 MeV; measured pion σ(E, θ); deduced structure functions. Comparison with chiral perturbation theory calculations.

doi: 10.1103/PhysRevLett.80.2294
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1998KL12      Phys.Rev.Lett. 81, 2831 (1998)

F.Klein, E.W.Otten, H.Schmieden, Th.Walcher

Comment on ' Comparison of Polarization Observables in Electron Scattering from the Proton and Deuteron '

doi: 10.1103/PhysRevLett.81.2831
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1997BE04      Phys.Rev.Lett. 78, 606 (1997); Erratum Phys.Rev.Lett. 79, 4515 (1997)

R.Beck, H.P.Krahn, J.Ahrens, H.J.Arends, G.Audit, A.Braghieri, N.d'Hose, S.J.Hall, V.Isbert, J.D.Kellie, I.J.D.MacGregor, P.Pedroni, T.Pinelli, G.Tamas, Th.Walcher, S.Wartenberg

Measurement of the E2/M1 Ratio in the N → Δ Transition using the Reaction p(γ(pol), p)π0

NUCLEAR REACTIONS 1H(polarized γ, π0), E=270-420 MeV; measured σ(θ), photon asymmetries, σ(θp); deduced E2/M1 ratio in N → δ transition.

doi: 10.1103/PhysRevLett.78.606
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1997BL13      Nucl.Phys. A626, 871 (1997)

K.I.Blomqvist, W.U.Boeglin, R.Bohm, M.Distler, R.Edelhoff, J.Friedrich, R.Geiges, M.Kahrau, S.Kamalov, M.Kirchbach, M.Kohl, M.Korn, H.Kramer, K.W.Krygier, V.Kunde, M.Kuss, J.M.Laget, A.Liesenfeld, K.Merle, R.Neuhausen, E.A.J.M.Offermann, Th.Pospischil, M.Potokar, C.Rangacharyulu, A.Richter, A.W.Richter, A.Rokavec, G.Rosner, P.Sauer, St.Schardt, G.Schrieder, T.Suda, L.Tiator, B.Vodenik, A.Wagner, Th.Walcher, St.Wolf

Pion Electroproduction in the 3He(e, e'π+)3H Reaction at Intermediate Energies

NUCLEAR REACTIONS 3He(e, e'π+), E=555-855 MeV; measured transverse, longitudinal σ(θ(π)); deduced transverse, longitudinal structure functions. Standard Born amplitudes for elementary pion production, three-body Fadeev wave functions.

doi: 10.1016/S0375-9474(97)00463-6
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1997BR15      Z.Phys. A358, 107 (1997)

K.-H.Brenzinger, C.Herberg, B.Limburg, H.Backe, S.Dambach, H.Euteneuer, F.Hagenbuck, H.Hartmann, K.Johann, K.H.Kaiser, O.Kettig, G.Knies, G.Kube, W.Lauth, H.Schope, Th.Walcher

Investigation of the Production Mechanism of Parametric X-Ray Radiation

doi: 10.1007/s002180050283
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1997HA28      Phys.Lett. 401B, 229 (1997)

F.Harter, J.Ahrens, R.Beck, B.Krusche, V.Metag, M.Schmitz, H.Stroher, Th.Walcher, M.Wolf

Two Neutral Pion Photoproduction Off the Proton between Threshold and 800 MeV

NUCLEAR REACTIONS 1H(γ, 2π0), E=threshold-800 MeV; measured two-pion photoproduction σ(E); deduced Δ(1232)-resonance role as intermediate state.

doi: 10.1016/S0370-2693(97)00423-1
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1997HU08      Nucl.Phys. A620, 385 (1997)

A.Hunger, J.Peise, A.Robbiano, J.Ahrens, I.Anthony, H.-J.Arends, R.Beck, G.P.Capitani, B.Dolbilkin, H.Falkenberg, G.Galler, S.J.Hall, J.D.Kellie, R.Kondratev, R.Kordsmeier, V.Lisin, A.I.L'vov, G.J.Miller, C.Molinari, P.Ottonello, A.R.Reolon, M.Sanzone, M.Schmitz, M.Schneider, M.Schumacher, O.Selke, Th.Walcher, F.Wissmann, S.Wolf, A.Zucchiatti

Compton Scattering by the Proton Through θ(cms) = 75° and 90° in the Δ-Resonance Region

NUCLEAR REACTIONS 1H(γ, γ), E=200-500 MeV; measured Compton scattering σ(θ); deduced multipole distribution. Dispersion relations. Δ-resonance.

doi: 10.1016/S0375-9474(97)00184-X
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetM0521.


1996BL02      Z.Phys. A353, 415 (1996)

K.I.Blomqvist, W.U.Boeglin, R.Bohm, M.Distler, D.Drechsel, R.Edelhoff, J.Friedrich, R.Geiges, O.Hanstein, M.Kahrau, M.Korn, H.Kramer, K.W.Krygier, V.Kunde, M.Kuss, A.Liesenfeld, K.Merle, R.Neuhausen, E.A.J.M.Offermann, Th.Pospischil, M.Potokar, A.Rokavec, A.W.Richter, G.Rosner, P.Sauer, S.Schardt, H.Schmieden, S.Sirca, L.Tiator, B.Vodenik, A.Wagner, Th.Walcher, S.Wolf

Precise Pion Electroproduction in the p(e, e'π+)n Reaction at W = 1125 MeV

NUCLEAR REACTIONS 1H(e, e'π+), E(cm)=1125 MeV; measured missing energy spectra, coincidence, longitudinal σ, asymmetry; deduced longitudinal, transverse structure functions, interference term.

doi: 10.1007/BF01285153
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1996BL20      Phys.Rev.Lett. 77, 2396 (1996)

K.I.Blomqvist, W.U.Boeglin, R.Bohm, M.Distler, R.Edelhoff, J.Friedrich, R.Geiges, M.Kahrau, M.Korn, H.Kramer, K.W.Krygier, V.Kunde, M.Kuss, J.M.Laget, A.Liesenfeld, K.Merle, R.Neuhausen, E.A.J.M.Offermann, Th.Pospischil, M.Potokar, C.Rangacharyulu, A.Rokavec, A.Richter, A.W.Richter, G.Rosner, P.Sauer, St.Schardt, G.Schrieder, T.Suda, B.Vodenik, A.Wagner, Th.Walcher, St.Wolf

Forward-Angle 3He(e, e'π±) Coincident Electroproduction and the Search for Δ's in the Ground State of 3He

NUCLEAR REACTIONS 3He(e, e'π+), E=555-855 MeV; measured σ(θ(π)) vs missing mass; deduced preformed Δ++ related features.

doi: 10.1103/PhysRevLett.77.2396
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1996PE19      Phys.Lett. 384B, 37 (1996)

J.Peise, A.Hunger, J.Ahrens, I.Anthony, H.-J.Arends, R.Beck, G.P.Capitani, B.Dolbilkin, H.Falkenberg, S.J.Hall, P.Jennewein, J.D.Kellie, R.Kondratev, R.Kordsmeier, V.Lisin, A.I.Lvov, G.J.Miller, C.Molinari, A.R.Reolon, A.Robbiano, M.Sanzone, M.Schmitz, M.Schneider, M.Schumacher, O.Selke, Th.Walcher, F.Wissmann

Compton Scattering by the Proton Through θ(cms) = 75° in the Δ-Resonance Region

NUCLEAR REACTIONS 1H(γ, γ), E=200-410 MeV; measured Compton scattering σ(θ); deduced Δ-photo excitation reduced M1 strength.

doi: 10.1016/0370-2693(96)00709-5
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1996WA23      Nucl.Phys. A606, 215 (1996)

T.Walcher

The Pion is a Constituent of the Nucleon

NUCLEAR REACTIONS 1H(e, e'π+), (e, e'π0), E not given; 1H(γ, π0), (γ, π+), E=340 MeV; analyzed σ(θ); deduced pion is constituent of the nucleon.

doi: 10.1016/0375-9474(96)00202-3
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1995BL02      Phys.Lett. 344B, 85 (1995)

K.I.Blomqvist, W.U.Boeglin, R.Bohm, M.Distler, R.Edelhoff, J.Friedrich, R.Geiges, M.Kahrau, M.Korn, H.Kramer, K.W.Krygier, V.Kunde, M.Kuss, J.Lac, A.Liesenfeld, K.Merle, R.Neuhausen, E.A.J.M.Offermann, Th.Pospischil, M.Potokar, A.W.Richter, A.Rokavec, G.Rosner, P.Sauer, S.Schardt, A.Serdarevic, Th.Veit, B.Vodenik, A.Wagner, Th.Walcher, S.Wolf

High-Momentum Components in the 1p Orbitals of 16O

NUCLEAR REACTIONS 16O(e, e'p), E=855 MeV; measured σ(E(e'), θ(e'), Ep, θp). 16O deduced proton momentum distribution. Natural target.

doi: 10.1016/0370-2693(94)01540-S
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1995BL10      Z.Phys. A351, 353 (1995)

K.I.Blomqvist, W.U.Boeglin, R.Bohm, M.Distler, R.Edelhoff, J.Friedrich, R.Geiges, M.Kahrau, M.Korn, H.Kramer, K.W.Krygier, V.Kunde, M.Kuss, J.Lac, A.Liesenfeld, K.Merle, R.Neuhausen, E.A.J.M.Offermann, Th.Pospischil, M.Potokar, A.W.Richter, A.Rokavec, G.Rosner, P.Sauer, S.Schardt, A.Serdarevic, Th.Veit, B.Vodenik, A.Wagner, Th.Walcher, S.Wolf

No Evidence for Medium Effects in the 12C(e, e'p)11B(g.s.) Reaction

NUCLEAR REACTIONS 12C(e, e'p), E not given; measured distorted momentum distribution vs missing momentum; deduced spectroscopic factor for transition to 11B(g.s). Parallel, anti-parallel kinenmatics.

doi: 10.1007/BF01291135
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1995EY01      Z.Phys. A352, 211 (1995)

D.Eyl, A.Frey, H.G.Andresen, J.R.M.Annand, K.Aulenbacher, J.Becker, J.Blume-Werry, Th.Dombo, P.Drescher, H.Fischer, P.Grabmayr, S.J.Hall, P.Hartmann, T.Hehl, W.Heil, J.Hoffmann, J.D.Kellie, F.Klein, M.Meyerhoff, Ch.Nachtigall, M.Ostrick, E.W.Otten, R.O.Owens, S.Plutzer, E.Reichert, R.Rieger, H.Schmieden, R.Sprengard, K.-H.Steffens, T.Walcher

First Measurement of the Polarization Transfer on the Proton in the Reactions H(e(pol), e'p(pol)) and D(e(pol), e'p(pol))

NUCLEAR REACTIONS 2,1H(polarized e, e'p), E=885 MeV; measured transverse proton polarization transfer vs θ, asymmetry vs φ(p); deduced 1n electric form factor implications.

doi: 10.1007/BF01298910
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1994BA73      Z.Phys. A349, 87 (1994)

H.Backe, S.Gampert, A.Grendel, H.-J.Hartmann, W.Lauth, Ch.Weinheimer, R.Zahn, F.R.Buskirk, H.Euteneuer, K.H.Kaiser, G.Stephan, Th.Walcher

Resonant Transition Radiation in the X-Ray Region from a Low Emittance 855 MeV Electron Beam

doi: 10.1007/BF01296337
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1994ME09      Phys.Lett. 327B, 201 (1994)

M.Meyerhoff, D.Eyl, A.Frey, H.G.Andresen, J.R.M.Annand, K.Aulenbacher, J.Becker, J.Blume-Werry, Th.Dombo, P.Drescher, J.R.Ducret, H.Fischer, P.Grabmayr, S.Hall, P.Hartmann, T.Hehl, W.Heil, J.Hoffmann, J.D.Kellie, F.Klein, M.Leduc, H.Moller, Ch.Nachtigall, M.Ostrick, E.W.Otten, R.O.Owens, S.Plutzer, E.Reichert, D.Rohe, M.Schafer, L.D.Schearer, H.Schmieden, K.-H.Steffens, R.Surkau, Th.Walcher

First Measurement of the Electric Formfactor of the Neutron in the Exclusive Quasielastic Scattering of Polarized Electrons from Polarized 3He

NUCLEAR REACTIONS 3He(polarized e, e'n), (polarized e, e'p), E=855 MeV; measured asymmetry. 1n deduced binding effects independent electric form factor. Polarized target.

doi: 10.1016/0370-2693(94)90718-8
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1994VE08      Z.Phys. A349, 161 (1994)

T.Veit, K.I.Blomqvist, W.U.Boeglin, M.Distler, R.Edelhoff, J.Friedrich, R.Geiges, M.Korn, H.Kramer, K.W.Krygier, V.Kunde, A.Liesenfeld, K.Merle, R.Neuhausen, E.A.J.M.Offermann, Th.Pospischil, A.W.Richter, G.Rosner, P.Sauer, S.Schardt, A.Wagner, Th.Walcher, S.Wolf

Model-Independent Separation of Structure Functions Over an Extended Kinematical Region

NUCLEAR REACTIONS 12C(e, e'p), E ≈ quasifree region; calculated structure functions, separation. Model independent approach.

doi: 10.1007/BF01291175
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1994WI13      Phys.Lett. 335B, 119 (1994)

F.Wissmann, J.Peise, M.Schmitz, M.Schneider, J.Ahrens, I.Anthony, R.Beck, B.Dolbilkin, S.J.Hall, F.Harter, S.Herdade, J.Herrmann, A.Hunger, P.Jennewein, J.D.Kellie, R.Kondratev, H.-P.Krahn, K.-H.Krause, V.Kusnetzov, V.Lisin, G.J.Miller, A.Polonsky, M.Schumacher, J.Sobolewski, Th.Walcher, A.Zabrodin

Elastic and Inelastic Photon Scattering from 12C

NUCLEAR REACTIONS 12C(γ, γ), (γ, γ'), E=200-500 MeV; measured σ(θ) vs Eγ. Simple static ansatz, Δ-hole models comparison.

doi: 10.1016/0370-2693(94)91401-X
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1991BR15      Z.Phys. A339, 367 (1991)

W.Bruckner, B.Cujec, H.Dobbeling, K.Dworschak, H.Kneis, S.Majewski, M.Nomachi, S.Paul, B.Povh, R.D.Ransome, T.-A.Shibata, M.Treichel, Th.Walcher

Measurements of the Antiproton-Proton Elastic Cross Section in the Beam Momentum Range between 180 and 600 MeV/c

NUCLEAR REACTIONS 1H(p-bar, p-bar), E at 180-600 MeV/c; measured σ(θ); deduced s-, p-wave phase shifts.


1991BR16      Z.Phys. A339, 379 (1991)

W.Bruckner, B.Cujec, H.Dobbeling, K.Dworschak, H.Kneis, S.Majewski, M.Nomachi, S.Paul, B.Povh, R.D.Ransome, T.-A.Shibata, M.Treichel, Th.Walcher

Ranges of Interaction in p(p-bar) Scattering at Low Energies

NUCLEAR REACTIONS 1H(p-bar, p-bar), E at 181-505 MeV/c; analyzed σ(θ); deduced annihilation range, proton size correlation.


1990BR02      Z.Phys. A335, 217 (1990)

W.Bruckner, B.Cujec, H.Dobbeling, K.Dworschak, F.Guttner, H.Kneis, S.Majewski, M.Nomachi, S.Paul, B.Povh, R.D.Ransome, T.-A.Shibata, M.Treichel, Th.Walcher

Measurements of the Antiproton-Proton Annihilation Cross-Section in the Beam Momentum Range between 180 and 600 MeV/c

NUCLEAR REACTIONS 1H(p-bar, X), E at 180-600 MeV/c; measured annihilation σ.


1989AS02      Nucl.Phys. B328, 1 (1989)

J.Ashman, B.Badelek, G.Baum, J.Beaufays, C.P.Bee, C.Benchouk, I.G.Bird, S.C.Brown, M.C.Caputo, H.W.K.Cheung, J.S.Chima, J.Ciborowski, R.Clifft, G.Coignet, F.Combley, G.Court, G.d'Agostini, J.Dress, M.Duren, N.Dyce, A.W.Edwards, M.Edwards, T.Ernst, M.I.Ferrero, D.Francis, E.Gabathuler, R.Gamet, V.Gibson, J.Gillies, P.Grafstrom, K.Hamacher, D.V.Harrach, P.J.Hayman, J.R.Holt, V.W.Hughes, A.Jacholkowska, T.Jones, E.M.Kabuss, B.Korzen, U.Kruner, S.Kullander, U.Landgraf, D.Lanske, F.Lettenstrom, T.Lindqvist, J.Loken, M.Matthews, Y.Mizuno, K.Monig, F.Montanet, E.Nagy, J.Nassalski, T.Niinikoski, P.R.Norton, F.G.Oakham, R.F.Oppenheim, A.M.Osborne, V.Papavassiliou, N.Pavel, C.Peroni, H.Peschel, R.Piegaia, B.Pietrzyk, U.Pietrzyk, B.Povh, P.Renton, J.M.Rieubland, A.Rijllart, K.Rith, E.Rondio, L.Ropelewski, D.Salmon, A.Sandacz, T.Schroder, K.P.Schuler, K.Schultze, T.-A.Shibata, T.Sloan, A.Staiano, H.E.Stier, J.Stock, G.N.Taylor, J.C.Thompson, T.Walcher, J.Toth, L.Urban, W.Wallucks, S.Wheeler, D.A.Williams, W.S.C.Williams, S.J.Wimpenny, R.Windmolders, W.J.Womersley, K.Ziemons

An Investigation of the Spin Structure of the Proton in Deep Inelastic Scattering of Polarized Muons on Polarized Protons

NUCLEAR REACTIONS 1H(polarized μ, X), E not given; measured differential σ, deep inelastic scattering; deduced proton spin structure.

doi: 10.1016/0550-3213(89)90089-8
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1987BR17      Nucl.Phys. A469, 617 (1987)

W.Bruckner, H.Dobbeling, P.C.Gugelot, F.Guttner, H.Kneis, S.Majewski, M.Nomachi, S.Paul, B.Povh, R.D.Ransome, T.-A.Shibata, M.Treichel, Th.Walcher, P.Amaudruz, Th.Bauer, J.Domingo, R.Frey, Q.Ingram, H.Janszen, G.Kyle, D.Renker, R.A.Schumacher

π+ Absorption on 12C in the Δ(1232) Region

NUCLEAR REACTIONS 12C(π+, 3p), E at 355, 375, 405 MeV/c; measured σ(Ep, θp); deduced pion capture associated quasifree scattering resonance structure.

doi: 10.1016/0375-9474(87)90016-9
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1985BE31      Phys.Lett. 158B, 19 (1985)

R.Bertini, P.Birien, K.Braune, W.Bruckner, G.Bruge, H.Catz, A.Chaumeaux, J.Ciborowski, H.Dobbeling, J.M.Durand, R.W.Frey, D.Garreta, S.Janouin, T.J.Ketel, K.Kilian, H.Kneis, S.Majewski, B.Mayer, J.C.Peng, B.Povh, R.D.Ransome, R.Szwed, T.-A.Shibata, A.Thiessen, M.Treichel, M.Uhrmacher, Th.Walcher, and the Heidelberg-Saclay Collaboration

The (K-, π+) Strangeness Exchange Reaction on 16O

NUCLEAR REACTIONS 12C, 16O(K-, π+), E at 450 MeV/c; measured σ(E(π)); deduced Σ hypernuclear states.

doi: 10.1016/0370-2693(85)90730-0
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1985BR12      Phys.Lett. 158B, 180 (1985)

W.Bruckner, H.Dobbeling, F.Guttner, D.Von Harrach, H.Kneis, S.Majewski, M.Nomachi, S.Paul, B.Povh, R.D.Ransome, T.-A.Shibata, M.Treichel, Th.Walcher

Real-To-Imagimary Ratio of the (p-Bar) Forward Elastic Scattering Amplitude in the Momemtum Range Between 180 and 590 MeV/c

NUCLEAR REACTIONS 1H(p-bar, p-bar), E at 181-590 MeV/c; measured σ(θ); deduced real to imaginary forward scattering amplitude ratio.

doi: 10.1016/0370-2693(85)91388-7
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1984BE07      Phys.Lett. 136B, 29 (1984)

R.Bertini, P.Birien, K.Braune, W.Bruckner, G.Bruge, H.Catz, A.Chaumeaux, J.Ciborowski, H.Dobbeling, J.M.Durand, R.W.Frey, D.Garreta, S.Janouin, T.J.Ketel, K.Kilian, H.Kneis, S.Majewski, B.Mayer, J.C.Peng, B.Povh, R.D.Ransome, R.Szwed, T.-A.Shibata, A.Thiessen, M.Treichel, M.Uhrmacher, Th.Walcher

Sigma Hypernuclear States in (K-, π(±)) Reactions on 12C

NUCLEAR REACTIONS 12C(K-, π+), (K-, π-), E at 400, 450 MeV/c; measured hypernuclear mass spectra; deduced Sigma hypernuclear states in 12C.

doi: 10.1016/0370-2693(84)92049-5
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1982RO10      Nucl.Phys. A385, 174 (1982)

G.Rosner, G.Hlawatsch, B.Kolb, G.Doukellis, J.B.Natowitz, Th.Walcher

Possible Contribution of Low-l Waves to the Deep Inelastic Collisions of 32S with 27Al

NUCLEAR REACTIONS 27Al(32S, X), E=152.6, 175 MeV; measured σ(θ), (fragment)(fragment)(θ), (fragment)(fragment)-coin versus (Q); deduced no (L)-window. Deep inelastic reactions, TDHF.

doi: 10.1016/0375-9474(82)90495-X
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1977BA15      Nucl.Phys. A279, 125 (1977)

J.Barrette, P.Braun-Munzinger, C.K.Gelbke, H.E.Wegner, B.Zeidman, A.Gamp, H.L.Harney, T.Walcher

Fission Characteristics of the Composite System 32S + 50Ti (II). Energy and Angular Dependence

NUCLEAR REACTIONS 50Ti(32S, X), E=110-166 MeV; measured σ(E, A, θ), A=35-60.

doi: 10.1016/0375-9474(77)90425-0
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1976BR04      Phys.Rev.Lett. 36, 849 (1976)

P.Braun-Munzinger, C.K.Gelbke, J.Barrette, B.Zeidman, M.J.LeVine, A.Gamp, H.L.Harney, T.Walcher

Experimental Proof for Binary Mass Division of a Composite System with A ≈ 80

NUCLEAR REACTIONS 50Ti(32S, X), E=140 MeV; measured two-particle coin; deduced binary mass division.

doi: 10.1103/PhysRevLett.36.849
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1976GE13      Nucl.Phys. A269, 460 (1976)

C.K.Gelbke, P.Braun-Munzinger, J.Barrette, B.Zeidman, M.J.Levine, A.Gamp, H.L.Harney, T.Walcher

Fission Characteristics of the Composite System 32S + 50Ti (I). Correlations between Coincident Fragments

NUCLEAR REACTIONS 50Ti(32S, X), E=140 MeV; measured fragment-fragment coin, σ(E, M), M=37-59, Q-value distributions, in-, out-of-plane angular correlations.

doi: 10.1016/0375-9474(76)90693-X
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1975BA45      Z.Phys. A274, 121 (1975)

J.Barrette, P.Braun-Munzinger, C.K.Gelbke, E.Grosse, H.L.Harney, J.Kuzminski, I.Tserruya, T.Walcher

Observation of a Fission-Like Process in the Bombardment of 48Ti and 50Ti by 32S

NUCLEAR REACTIONS 48,50Ti(32S, X), E=105, 130, 144 MeV; measured σ(E(fragment mass), θ).

doi: 10.1007/BF01408463
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1975MI08      Phys.Lett. 58B, 155 (1975)

H.Miska, H.D.Graf, A.Richter, R.Schneider, D.Schull, E.Spamer, H.Theissen, O.Titze, T.Walcher

High Resolution Inelastic Electron Scattering and Radiation Widths of Levels in 16O

NUCLEAR REACTIONS 16O(e, e'), E=38-60 MeV; measured σ(E, Ee', θ). 16O levels deduced γ-width.

doi: 10.1016/0370-2693(75)90626-7
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1975SC03      Phys.Lett. 55B, 171 (1975)

A.Schwierczinski, R.Frey, E.Spamer, H.Theissen, T.Walcher

Inelastic Electron Scattering from the Giant Isoscalar E2-Resonance in 142Nd and 150Nd

NUCLEAR REACTIONS 142,150Nd(e, e'), E=50, 64.3 MeV; measured σ(Ee'). 142,150Nd deduced resonances, level-width.

doi: 10.1016/0370-2693(75)90435-9
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1975SC33      Phys.Rev.Lett. 35, 1244 (1975)

A.Schwierczinski, R.Frey, A.Richter, E.Spamer, H.Theissen, O.Titze, T.Walcher, S.Krewald, R.Rosenfelder

Multipole Assignment of the 8.9-MeV Resonance in 208Pb

NUCLEAR REACTIONS 208Pb(e, e'), E=50 MeV; measured σ(Ee', θ); analyzed previous data. 208Pb deduced resonances, B(λ), Γ.

doi: 10.1103/PhysRevLett.35.1244
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1972BU38      Phys.Lett. 42B, 194 (1972)

F.R.Buskirk, H.-D.Graf, R.Pitthan, H.Theissen, O.Titze, T.Walcher

Evidence for E2 Resonances at High Excitation Energies in 208Pb

NUCLEAR REACTIONS 208Pb(e, e'), E=50, 65 MeV; measured σ(Ee', θ). 208Pb deduced E2 resonances, B(E2).

doi: 10.1016/0370-2693(72)90058-5
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1972PI16      Z.Naturforsch. 27a, 1683 (1972)

R.Pitthan, T.Walcher

Evidence of M1 and E2 Strength in the Giant Resonance Region of Ce

NUCLEAR REACTIONS Ce(e, e'), E=50, 65 MeV; measured nothing, calculated σ(θ). Ce levels deduced B(EL), B(mλ).


1971PI09      Phys.Lett. 36B, 563 (1971)

R.Pitthan, T.Walcher

Inelastic Electron Scattering in the Giant Resonance Region of La, Ce And Pr

NUCLEAR REACTIONS Ce, La, Pr(e, e'), E=50-65 MeV; measured σ(Ee', θ) in giant resonance region. 139La, Ce, 141Pr deduced resonances.

doi: 10.1016/0370-2693(71)90090-6
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1970WA08      Z.Phys. 232, 342 (1970)

T.Walcher, P.Strehl

Strahlungsbreite der 1, 56 Mev- und 1, 35 Mev-Niveaus von 19F

NUCLEAR REACTIONS 19F(e, e'), E=30, 60 MeV; measured σ(Ee'). 19F levels deduced level-width, transition radii.

doi: 10.1007/BF01395385
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1970WA09      Phys.Lett. 31B, 442 (1970)

T.Walcher

Excitation of 4He by Inelastic Electron Scattering of Low Momentum Transfer

NUCLEAR REACTIONS 4He(e, e'), E=64, 65 MeV; measured σ(Ee'). 4He deduced level, J, π, level-width, monopole matrix element.

doi: 10.1016/0370-2693(70)90148-6
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1970WA24      Z.Phys. 237, 368 (1970)

T.Walcher

Unelastische Elektronenstreuung am 4He bei kleinem Impulsubertrag

NUCLEAR REACTIONS 4He(e, e'), E=65 MeV; measured σ(Ee'). 4He deduced levels, J, π, level-width.

doi: 10.1007/BF01399055
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