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11 results on '"GRAAL collaboration"'

1. Differential cross section measurement of eta photoproduction on the proton from threshold to 1100 MeV

Author

GRAAL collaboration, Renard, F., Anghinolfi, M., Bartalini, O., Bellini, V., Bocquet, J. -P., Capogni, M., Castoldi, M., Corvisiero, P., D'Angelo, A., Didelez, J. -P., Di Salvo, R., Gaulard, C., Gervino, G., Ghio, F., Girolami, B., Guidal, M., Hourany, E., Kouznetsov, V., Kunne, R., Lapik, A., Sandri, P. Levi, Lleres, A., Moricciani, D., Nedorezov, V., Nicoletti, L., Rebreyend, D., Rudnev, N., Sanzone, M., Schaerf, C., Sperduto, M. -L., Sutera, M. -C., Taiuti, M., Turinge, A., Zhao, Q., and Zucchiatti, A.

Subjects
High Energy Physics - Experiment
Abstract

The differential cross section for the reaction p(gamma, eta p) has been measured from threshold to 1100 MeV photon laboratory energy. For the first time, the region of the S11(1535) resonance is fully covered in a photoproduction experiment and allows a precise extraction of its parameters at the photon point. Above 1000 MeV, S-wave dominance vanishes while a P-wave contribution is observed whose nature will have to be clarified. These high precision data together with the already measured beam asymmetry data will provide stringent constraints on the extraction of new couplings of baryon resonances to the eta meson., Comment: 10 pages, 5 figures, submitted to Phys. Letters B. Typos corrected. Some more information on the S11(1535) parameters

Published
2000
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5. Measurement of beam-recoil observables Ox , Oz and target asymmetry T for the reaction $ \Lambda$

Author

Lleres, A., Bartalini, O., Bellini, V., Bocquet, J. P., Calvat, P., Capogni, M., Casano, L., Castoldi, M., D’Angelo, A., Didelez, J. -P., Di Salvo, R., Fantini, A., Franco, D., Gaulard, C., Gervino, G., Ghio, F., Girolami, B., Giusa, A., Guidal, M., Hourany, E., Kunne, R., Kuznetsov, V., Lapik, A., Levi Sandri, P., Mammoliti, F., Mandaglio, G., Moricciani, D., Mushkarenkov, A. N., Nedorezov, V., Nicoletti, L., Perrin, C., Randieri, C., Rebreyend, D., Renard, F., Rudnev, N., Russew, T., Russo, G., Schaerf, C., Sperduto, M. -L., Sutera, M. -C., Turinge, A., Vegna, V., and The GRAAL Collaboration

Published
2009
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6. Measurement of η photoproduction on the proton from threshold to 1500 MeV

Author

Bartalini, O., Bellini, V., Bocquet, J. P., Calvat, P., Capogni, M., Casano, L., Castoldi, M., D'Angelo, A., Didelez, J. -P., Di Salvo, R., Fantini, A., Franco, D., Gaulard, C., Gervino, G., Ghio, F., Giardina, G., Girolami, B., Giusa, A., Guidal, M., Hourany, E., Kunne, R., Lapik, A., Levi Sandri, P., Lleres, A., Mammoliti, F., Mandaglio, G., Moricciani, D., Mushkarenkov, A. N., Nedorezov, V., Nicoletti, L., Perrin, C., Randieri, C., Rebreyend, D., Renard, F., Rudnev, N., Russew, T., Russo, G., Schaerf, C., Sperduto, M. -L., Sutera, M. -C., Turinge, A., Vegna, V., and The GRAAL Collaboration

Published
2007
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7. Meson photoproduction on the nucleon with polarized photons

Author

D'Angelo, A., Bartalini, O., Bellini, V., Bocquet, J. P., Calvat, P., Capogni, M., Casano, L., Castoldi, M., Didelez, J. -P., Di Salvo, R., Fantini, A., Franco, D., Gervino, G., Ghio, F., Giardina, G., Girolami, B., Giusa, A., Guidal, M., Hourani, E., Kouznetsov, V., Kunne, R., Lapik, A., Levi Sandri, P., Lleres, A., Mammoliti, F., Mandaglio, G., Moricciani, D., Mushkarenkov, A. N., Nedorezov, V., Nicoletti, L., Randieri, C., Rebreyend, D., Renard, F., Rudnev, N., Russew, T., Russo, G., Schaerf, C., Sperduto, M. -L., Sutera, M. -C., Turinge, A., Vegna, V., and The GRAAL Collaboration

Published
2007
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8. Differential cross section measurement of η photoproduction on the proton from threshold to 1100 MeV

Author

GRAAL collaboration, Renard, F., Anghinolfi, M., Bartalini, O., Bellini, V., Bocquet, J. -P., Capogni, M., Castoldi, M., Corvisiero, P., D'Angelo, A., Didelez, J. -P., Di Salvo, R., Gaulard, C., Gervino, G., Ghio, F., Girolami, B., Guidal, M., Hourany, E., Kouznetsov, V., Kunne, R., Lapik, A., Sandri, P. Levi, Lleres, A., Moricciani, D., Nedorezov, V., Nicoletti, L., Rebreyend, D., Rudnev, N., Sanzone, M., Schaerf, C., Sperduto, M. -L., Sutera, M. -C., Taiuti, M., Turinge, A., Zhao, Q., Zucchiatti, A., Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and GRAAL

Subjects
Scattering cross-section, Polarization observables, Particle physics, Nuclear and High Energy Physics, EXTRACTION, Photon, Proton, Baryon resonances, media_common.quotation_subject, Nuclear Theory, FOS: Physical sciences, PION-PHOTOPRODUCTION, 01 natural sciences, 7. Clean energy, Asymmetry, SIGMA-BEAM ASYMMETRY, DECAYS, High Energy Physics - Experiment, Settore FIS/04 - Fisica Nucleare e Subnucleare, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Eta photoproduction, 010306 general physics, Nuclear Experiment, media_common, Physics, BARYONS, 010308 nuclear & particles physics, Eta meson, Resonance, ELECTROPRODUCTION, RESONANCE, MODEL, Baryon, Differential cross section, Photon beam asymmetry, Particle Physics - Experiment, Beam (structure)
Abstract

The differential cross section for the reaction p(gamma, eta p) has been measured from threshold to 1100 MeV photon laboratory energy. For the first time, the region of the S11(1535) resonance is fully covered in a photoproduction experiment and allows a precise extraction of its parameters at the photon point. Above 1000 MeV, S-wave dominance vanishes while a P-wave contribution is observed whose nature will have to be clarified. These high precision data together with the already measured beam asymmetry data will provide stringent constraints on the extraction of new couplings of baryon resonances to the eta meson., 10 pages, 5 figures, submitted to Phys. Letters B. Typos corrected. Some more information on the S11(1535) parameters

Published
2002
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9. Meson photoproduction on the proton at GRAAL

Author

Bocquet, J. P., Bartalini, O., Bellini, V., Castoldi, M., Corvisiero, P., D Angelo, A., Didelez, J. P., Di Salvo, R., Gervino, G., Ghio, F., Girolami, B., Guidal, M., Hourany, E., Kouznetsov, V., Kunne, R., Lapik, A., Sandri, P. L., Lleres, A., Moricciani, D., Nedorezov, V., Nicoletti, L., Rebreyend, D., Renard, F., Rudnev, N. V., Sanzone, M., Schaerf, C., Maria Leda Sperduto, Sutera, C. M., Turinge, A., Zucchiatti, A., and Graal collaboration

10. Meson photoproduction on the neutron at GRAAL

Author

Sandri, P. Levi, Bellini, V., Bocquet, J. P., Casano, L., Castoldi, M., Annalisa D'Angelo, Didelez, J. P., Di Salvo, R., Fantini, A., Franco, D., Ghio, F., Girolami, B., Giusa, A., Guidal, M., Hourany, E., Kunne, R., Kuznetsov, V., Lapik, A., Lleres, A., Moricciani, D., Mushkarenkov, A. N., Nedorezov, V., Randieri, C., Rebreyend, D., Rudnev, N., Russo, G., Schaerf, C., Sperduto, M. L., Sutera, M. C., Turinge, A., and Graal Collaboration

11. Strangeness photoproduction at GRAAL

Author

Bocquet, J. P., Anghinolfi, M., Bartalini, C., Bellini, V., Castoldi, M., Corvisiero, P., D Angelo, A., Didelez, J. P., Di Salvo, R., Gervino, G., Ghio, F., Girolami, B., Guidal, M., Hourany, E., Kouznetsov, V., Kunne, R., Lapik, A., Sandri, P. L., Lleres, A., Moricciani, D., Nedorezov, V., Nicoletti, L., Rebreyend, D., Renard, F., Rudnev, N., Sanzone, M., Schaerf, C., Maria Leda Sperduto, Sutera, M. C., Taiuti, M., Turinge, A., Zucchiatti, A., and Graal Collaboration

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