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NSR database version of April 27, 2024.

Search: Author = J.Ajaka

Found 8 matches.

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2007AJ02      Phys.Lett. B 651, 108 (2007)

J.Ajaka, Y.Assafiri, O.Bartalini, V.Bellini, S.Bouchigny, M.Castoldi, A.D'Angelo, J.P.Didelez, R.Di Salvo, A.Fantini, L.Fichen, G.Gervino, F.Ghio, B.Girolami, A.Giusa, M.Guidal, E.Hourany, R.Kunne, A.Lapik, P.Levi Sandri, D.Moricciani, A.Mushkarenkov, V.Nedorezov, C.Randieri, N.Rudnev, G.Russo, C.Schaerf, M.Sperduto, M.Sutera, A.Turinge

Double π⁰ photoproduction on the neutron at GRAAL

doi: 10.1016/j.physletb.2007.06.009
Citations: PlumX Metrics

2006AJ01      Phys.Rev.Lett. 96, 132003 (2006)

J.Ajaka, Y.Assafiri, S.Bouchigny, J.P.Didelez, L.Fichen, M.Guidal, E.Hourany, V.Kouznetsov, R.Kunne, A.N.Mushkarenkov, V.Nedorezov, N.Rudnev, A.Turinge, Q.Zhao

Evidence for Nucleon-Resonance Excitation in ω-Meson Photoproduction

NUCLEAR REACTIONS ¹H(polarized γ, X), E=1.1-1.5 GeV; measured ω-meson production σ(E, θ), σ, beam asymmetry; deduced nucleon resonance excitation.

doi: 10.1103/PhysRevLett.96.132003
Citations: PlumX Metrics

2000AJ01      Phys.Lett. 475B, 372 (2000)

J.Ajaka, and the GRAAL Collaboration

Precise Measurement of Σ Beam Asymmetry for Positive Pion Photoproduction on the Proton from 550 to 1100 MeV

NUCLEAR REACTIONS ¹H(polarized γ, π⁺X), E=550-1100 MeV; measured σ(θ), Σ asymmetry. Comparison with model predictions, previous measurements.

doi: 10.1016/S0370-2693(99)01396-9
Citations: PlumX Metrics

2000AJ05      Acta Phys.Hung.N.S. 11, 421 (2000)

J.Ajaka, M.Anghinolfi, Y.Assafiri, O.Bartalini, M.Battaglieri, V.Bellini, J.P.Bocquet, P.Calvat, M.Capogni, M.Castoldi, P.Corvisiero, A.D'Angelo, J.P.Didelez, R.Di Salvo, M.A.Duval, E.Guinault, L.Fichen, C.Gaulard, G.Gervino, F.Ghio, B.Girolami, M.Guidal, E.Hourany, I.Kilvington, V.Kouznetsov, R.Kunne, A.Lapik, P.Levi Sandri, A.Lleres, D.Moricciani, V.Nedorezov, L.Nicoletti, D.Rebreyend, F.Renard, M.Ripani, N.Rudnev, M.Sanzone, C.Schaerf, M.Taiuti, A.Turinge, Q.Zhao, A.Zucchiatti

Beam Asymmetry Σ Measurements at GRAAL

NUCLEAR REACTIONS ¹H(γ, X), E=500-1500 MeV; measured beam asymmetry, missing mass spectrum for pη, pω, pπ⁰π⁰ and nπ⁺π⁰ output channels.

1999AJ01      Nucl.Phys. (Supplement) A654, 531c (1999)

J.Ajaka, V.Bellini, J.P.Bocquet, M.Capogni, M.Castoldi, A.D'Angelo, J.P.Didelez, R.Di Salvo, M.A.Duval, C.Gaulard, F.Ghio, B.Girolami, M.Guidal, E.Hourany, A.Lapik, I.Kilvington, V.Kouznetsov, P.Levi Sandri, A.Lleres, D.Moricciani, V.Nedorezov, L.Nicoletti, C.Perrin, D.Rebreyend, F.Renard, C.Schaerf, A.Turinge, A.Zucchiatti

Beam Asymmetry Σ in Meson Photo-Production at GRAAL

NUCLEAR REACTIONS ¹H(γ, X), E=550-1100 MeV; measured pions, η-meson production associated beam asymmetry.

doi: 10.1016/S0375-9474(00)88494-8
Citations: PlumX Metrics

1998AJ02      Phys.Rev.Lett. 81, 1797 (1998)

J.Ajaka, M.Anghinolfi, V.Bellini, G.Berrier, J.P.Bocquet, M.Breuer, P.M.Calvat, M.Capogni, L.E.Casano, M.Castoldi, L.Ciciani, P.Corvisiero, A.D'Angelo, J.-P.Didelez, R.Di Salvo, Ch.Djalali, M.A.Duval, R.Frascaria, G.Gervino, F.Ghio, P.Girard, B.Girolami, E.Guinault, P.Hoffmann-Rothe, E.Hourany, I.Kilvington, V.Kouznetsov, A.Lapik, P.Levi Sandri, D.Moricciani, M.Morlet, V.Nedorezov, L.Nicoletti, C.Perrin, D.Rebreyend, F.Renard, M.Ripani, L.Rosier, P.Rossi, F.Roudot, T.Russew, M.Sanzone, C.Schaerf, M.L.Sperduto, A.Sudov, M.Taiuti, A.Turinge, J.Van de Wiele, A.Zucchiatti

New Measurement of Σ Beam Asymmetry for η Meson Photoproduction on the Proton

NUCLEAR REACTIONS ¹H(polarized γ, X), E=740-1050 MeV; measured η meson production associated Eγ, Iγ(θ); deduced beam asymmetry features. Tagged, laser backscattered beam.

doi: 10.1103/PhysRevLett.81.1797
Citations: PlumX Metrics

1997BO32      Nucl.Phys. A622, 124c (1997)

J.P.Bocquet, J.Ajaka, M.Anghinolfi, V.Bellini, G.Berrier, P.Calvat, M.Capogni, L.Casano, M.Castoldi, P.Corvisiero, A.D'Angelo, J.P.Didelez, R.Di Salvo, Ch.Djalali, M.A.Duval, R.Frascaria, G.Gervino, F.Ghio, P.Girard, B.Girolami, E.Guinault, E.Hourani, V.Kuznetsov, A.Lapik, P.Levi Sandri, S.Lo Nigro, D.Moricciani, M.Morlet, V.Muccifora, V.Nedorezov, C.Perrin, D.Rebreyend, F.Renard, G.Ricco, M.Rigney, M.Ripani, L.Rosier, P.Rossi, Th.Russew, M.Sanzone, C.Schaerf, A.Scire, M.L.Sperduto, A.Sudov, M.Taiuti, A.Turinge, J.Van de Wiele, D.Vinciguerra, A.Zucchiatti

GRAAL: A polarized γ-ray beam at ESRF

doi: 10.1016/S0375-9474(97)00337-0
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