Beam asymmetry Σ in η′ photoproduction off the proton at the GRAAL experiment

Autor: Mandaglio G., Bellini V., Bocquet J. P., Capogni M., Curciarello F., D'Angelo A., De Leo V., Didelez J.P., Di Salvo R., Fantini A., Franco D., Gervino G., Ghio F., Giardina G., Girolami B., Lapik A.M., Levi Sandri P., Lleres A., Mammoliti F., Manganaro M., Moricciani D., Mushkarenkov A.N., Nedorezov V.G., Rebreyend D., Rudnev N.V., Schaerf C., Sperduto M.L., Sutera M.C., Turinge A., Vegna V., Zonta I.

Publikováno v: EPJ Web of Conferences, Vol 73, p 04006 (2014)

The only recent η′ photoproduction data off proton available in literature are the differential and total cross sections published by the CLAS and CB-ELSA-TAPS Collaborations. However, the wide information about reaction cross sections are not suf

Externí odkaz: https://doaj.org/article/a78b08529f8c4575a7d9fc8aa153d0b2

Dark matter search in a Beam-Dump eXperiment (BDX) at Jefferson Lab: an update on PR12-16-001

Autor: Battaglieri, M., Bersani, A., Bracco, G., Caiffi, B., Celentano, A., De Vita, R., Marsicano, L., Musico, P., Osipenko, M., Panza, F., Ripani, M., Santopinto, E., Taiuti, M., Bellini, V., Bondi', M., Castorina, P., De Napoli, M., Italiano, A., Kuznetzov, V., Leonora, E., Mammoliti, F., Randazzo, N., Re, L., Russo, G., Russo, M., Shahinyan, A., Sperduto, M., Spinali, S., Sutera, C., Tortorici, F., Baltzell, N., Dalton, M., Freyberger, A., Girod, F. -X., Kharashvili, G., Kubarovsky, V., Pasyuk, E., Smith, E. S., Stepanyan, S., Ungaro, M., Whitlatch, T., Izaguirre, E., Krnjaic, G., Snowden-Ifft, D., Loomba, D., Carpinelli, M., D'Urso, D., Gabrieli, A., Maccioni, G., Sant, M., Sipala, V., Ameli, F., Cisbani, E., De Persio, F., Del Dotto, A., Garibaldi, F., Meddi, F., Nicolau, C. A., Urciuoli, G. M., Chiarusi, T., Manzali, M., Pellegrino, C., Schuster, P., Toro, N., Essig, R., Wood, M. H., Paremuzyan, M. Holtrop. R., De Cataldo, G., De Leo, R., Di Bari, D., Lagamba, L., Nappi, E., Perrino, R., Balossino, I., Barion, L., Ciullo, G., Contalbrigo, M., Drago, A., Lenisa, P., Movsisyan, A., Pappalardo, L., Spizzo, F., Turisini, M., Hasch, D., Lucherini, V., Mirazita, M., Pisano, S., Rossi, P., Tomassini, S., Simi, G., D'Angelo, A., Lanza, L., Rizzo, A., Schaerf, C., Zonta, I., Filippi, A., Genovese, M., Fegan, S., Kunkel, M., Bashkanov, M., Murphy, A., Smith, G., Watts, D., Zachariou, N., Zana, L., Glazier, D., Ireland, D., McKinnon, B., Sokhan, D., Colaneri, L., Pereira, S. Anefalos, Afanasev, A., Briscoe, B., Strakovsky, I., Kalantarians, N., Weinstein, L., Adhikari, K. P., Dunne, J. A., Dutta, D., Fassi, L. El, Ye, L., Hicks, K., Cole, P., Dobbs, S., Fanelli, C., Murthy, P. T. M.

This document is an update to the proposal PR12-16-001 Dark matter search in a Beam-Dump eXperiment (BDX) at Jefferson Lab submitted to JLab-PAC44 in 2016 reporting progress in addressing questions raised regarding the beam-on backgrounds. The concer

Externí odkaz: http://arxiv.org/abs/1712.01518

First Measurement of the $\Sigma$ Beam Asymmetry in $\eta^{\prime}$ Photoproduction off the Proton near Threshold

Autor: Sandri, P. Levi, Mandaglio, G., De Leo, V., Bartalini, O., Bellini, V., Bocquet, J. P., Capogni, M., Curciarello, F., 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., Lapik, A., Lleres, A., Mammoliti, F., Manganaro, M., Moricciani, D., Mushkarenkov, A., Nedorezov, V., Randieri, C., Rebreyend, D., Rudnev, N., Russo, G., Schaerf, C., Sperduto, M. L., Sutera, M. C., Turinge, A., Vegna, V., Zonta, I.

Publikováno v: Eur. Phys. J. A (2015) 51: 77

The $\Sigma$ beam asymmetry in $\eta^{\prime}$ photoproduction off the proton was measured at the GrAAL polarised photon beam with incoming photon energies of 1.461 and 1.480 GeV. For both energies the asymmetry as a function of the meson production

Externí odkaz: http://arxiv.org/abs/1407.6991

Measurement of the \Sigma\ beam asymmetry for the \omega\ photo-production off the proton and the neutron at GRAAL

Autor: Vegna, V., D'Angelo, A., Bartalini, O., Bellini, V., Boquet, J. P., Capogni, M., Casano, L. E., Castoldi, M., Curciarello, F., De Leo, V., Didelez, J. P., Di Salvo, R., Fantini, A., Franco, D., Gervino, G., Ghio, F., Giardina, G., Girolami, B., Giusa, A., Lapik, A., Sandri, P. Levi, Lleres, A., Mammoliti, F., Mandaglio, G., Manganaro, M., Moricciani, D., Mushkarenkov, A., Nedorezov, V., Randieri, C., Rebreyend, D., Rudnev, N., Russo, G., Schaerf, C., Sperduto, M. L., Sutera, M. C., Turinge, A., Zonta, I.

Publikováno v: Phys. Rev. C 91, 065207 (2015)

We report on new measurements of the beam asymmetry for \omega\ photo-production on proton and neutron in Hydrogen and Deuterium targets from the GRAAL collaboration. The beam asymmetry values are extracted from the reaction threshold (E_{\gamma} = 1

Externí odkaz: http://arxiv.org/abs/1306.5943

Limits on light-speed anisotropies from Compton scattering of high-energy electrons

Autor: Bocquet, J. -P., Moricciani, D., Bellini, V., Beretta, M., Casano, L., D'Angelo, A., Di Salvo, R., Fantini, A., Franco, D., Gervino, G., Ghio, F., Giardina, G., Girolami, B., Giusa, A., Gurzadyan, V. G., Kashin, A., Knyazyan, S., Lapik, A., Lehnert, R., Sandri, P. Levi, Lleres, A., Mammoliti, F., Mandaglio, G., Manganaro, M., Margarian, A., Mehrabyan, S., Messi, R., Nedorezov, V., Perrin, C., Randieri, C., Rebreyend, D., Rudnev, N., Russo, G., Schaerf, C., Sperduto, M. L., Sutera, M. C., Turinge, A., Vegna, V.

Publikováno v: Phys.Rev.Lett.104:241601,2010

The possibility of anisotropies in the speed of light relative to the limiting speed of electrons is considered. The absence of sidereal variations in the energy of Compton-edge photons at the ESRF's GRAAL facility constrains such anisotropies repres

Externí odkaz: http://arxiv.org/abs/1005.5230