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NSR database version of May 24, 2024.

Search: Author = K.Helbing

Found 6 matches.

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2006HE17      Prog.Part.Nucl.Phys. 57, 405 (2006)

K.Helbing

The Gerasimov-Drell-Hearn sum rule

doi: 10.1016/j.ppnp.2005.09.003
Citations: PlumX Metrics


2003AH01      Phys.Lett. 551B, 49 (2003)

J.Ahrens, S.Altieri, J.R.M.Annand, G.Anton, H.-J.Arends, K.Aulenbacher, R.Beck, C.Bradtke, A.Braghieri, N.Degrande, N.d'Hose, H.Dutz, S.Goertz, P.Grabmayr, K.Hansen, J.Harmsen, D.von Harrach, S.Hasegawa, T.Hasegawa, E.Heid, K.Helbing, H.Holvoet, L.Van Hoorebeke, N.Horikawa, T.Iwata, O.Jahn, P.Jennewein, T.Kageya, B.Kiel, F.Klein, R.Kondratiev, K.Kossert, J.Krimmer, M.Lang, B.Lannoy, R.Leukel, V.Lisin, T.Matsuda, J.C.McGeorge, A.Meier, D.Menze, W.Meyer, T.Michel, J.Naumann, A.Panzeri, P.Pedroni, T.Pinelli, I.Preobrajenski, E.Radtke, E.Reichert, G.Reicherz, Ch.Rohlof, G.Rosner, T.Rostomyan, C.Rovelli, D.Ryckbosch, M.Sauer, B.Schoch, M.Schumacher, B.Seitz, T.Speckner, N.Takabayashi, G.Tamas, A.Thomas, R.van de Vyver, A.Wakai, W.Weihofen, F.Wissmann, F.Zapadtka, G.Zeitler, and the GDH and A2 Collaborations

Helicity dependence of the γ(pol)p(pol) → nπ+π0 reaction in the second resonance region

NUCLEAR REACTIONS 1H(polarized γ, π+π0), E=400-800 MeV; measured σ, helicity dependence; deduced resonance features. Polarized target.

doi: 10.1016/S0370-2693(02)03008-3
Citations: PlumX Metrics


2002HE05      Nucl.Phys. B(Proc.Supp.) S105, 113 (2002)

K.Helbing, on behalf of the GDH-Collaboration

Experimental Verification of the GDH Sum Rule at ELSA and MAMI

NUCLEAR REACTIONS 1H(polarized γ, X), E=0.14-1.9 GeV; measured photoabsorption σ; deduced sum rule integral.

doi: 10.1016/S0920-5632(01)01962-4
Citations: PlumX Metrics


1998BO19      Phys.Rev.Lett. 81, 534 (1998)

A.Bock, G.Anton, W.Beulertz, Chr.Bradtke, H.Dutz, R.Gehring, S.Goertz, K.Helbing, J.Hey, W.Meyer, M.Pluckthun, G.Reicherz, L.Sozuer, M.Breuer, J.P.Didelez, P.Hoffmann-Rothe

Measurement of the Target Asymmetry of η and π0 Photoproduction on the Proton

NUCLEAR REACTIONS 1H(γ, X), (γ, π0), E=250-1150 MeV; measured η, pion asymmetry; deduced target asymmetry. Polarized target.

doi: 10.1103/PhysRevLett.81.534
Citations: PlumX Metrics


1997HO07      Phys.Rev.Lett. 78, 4697 (1997)

P.Hoffmann-Rothe, M.Krebeck, J.Hey, M.Breuer, G.von Edel, E.Hourany, M.Rigney, J.Ajaka, G.Anton, J.Arends, G.Berrier-Ronsin, W.Beulertz, G.Blanpied, A.Bock, J.-P.Didelez, K.Helbing, R.Maass, G.Noldeke, B.Preedom, B.Richie, L.Rosier, B.Saghai, M.Schumacher, F.Smend

Break-Up and Coherent Photoproduction of η Mesons on the Deuteron

NUCLEAR REACTIONS 2H(γ, X), E ≈ 0.710-0.8 GeV bremsstrahlung; measured σ(θ(η)), coherent production; deduced neutron to proton differential σ, isoscalar, isovector amplitude ratio.

doi: 10.1103/PhysRevLett.78.4697
Citations: PlumX Metrics


1996DU09      Nucl.Phys. A601, 319 (1996)

H.Dutz, D.Kramer, B.Zucht, K.H.Althoff, G.Anton, J.Arends, W.Beulertz, A.Bock, M.Breuer, R.Gehring, M.Gemander, S.Goertz, K.Helbing, J.Hey, W.Meyer, G.Noldeke, R.Paulsen, G.Reicherz, A.Thomas, S.Wartenberg

Photoproduction of Positive Pions from Polarized Protons

NUCLEAR REACTIONS 1H(γ, π+), E=215-800 MeV; measured proton asymmetry vs θ. Frozen spin polarized target, tagged photon beam.

doi: 10.1016/0375-9474(96)00008-5
Citations: PlumX Metrics


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