Search

Your search keyword '"Van Der Steenhoven, G"' showing total 402 results
Start Over Author "Van Der Steenhoven, G"
402 results on '"Van Der Steenhoven, G"'

1. The proton and deuteron F_2 structure function at low Q^2

Author

Tvaskis, V., Arrington, J., Asaturyan, R., Baker, O. K., Blok, H. P., Bosted, P., Boswell, M., Bruell, A., Christy, M. E., Cochran, A., Ent, R., Filippone, B. W., Gasparian, A., Keppel, C. E., Kinney, E., Lapikás, L., Lorenzon, W., Mack, D. J., Mammei, J., Martin, J. W., Mkrtchyan, H., Niculescu, I., Piercey, R. B., Potterveld, D. H., Smith, G., Spurlock, K., van der Steenhoven, G., Stepanyan, S., Tadevosian, V., and Wood, S. A.

Subjects
Nuclear Experiment
Abstract

Measurements of the proton and deuteron $F_2$ structure functions are presented. The data, taken at Jefferson Lab Hall C, span the four-momentum transfer range $0.06 < Q^2 < 2.8$ GeV$^2$, and Bjorken $x$ values from 0.009 to 0.45, thus extending the knowledge of $F_2$ to low values of $Q^2$ at low $x$. Next-to-next-to-leading order calculations using recent parton distribution functions start to deviate from the data for $Q^2<2$ GeV$^2$ at the low and high $x$-values. Down to the lowest value of $Q^2$, the structure function is in good agreement with a parameterization of $F_2$ based on data that have been taken at much higher values of $Q^2$ or much lower values of $x$, and which is constrained by data at the photon point. The ratio of the deuteron and proton structure functions at low $x$ remains well described by a logarithmic dependence on $Q^2$ at low $Q^2$., Comment: 3 figures, submitted paper

Published
2010
Full Text
View/download PDF

2. Concluding remarks on QCD-N'02 Workshop at Ferrara

Author

van der Steenhoven, G.

Subjects
High Energy Physics - Experiment
Abstract

A summary is given of some important developments in QCD studies of the nucleon as presented at this workshop. Based on these developments some expectations for the short- and long-term future of the field are sketched. Taken together, the summary of the workshop and the future perspectives result in a {\sl Road Map} for experimental studies of the QCD structure of the nucleon. The Road Map includes as a long-term goal the construction of new lepton-hadron scattering facilities both in Europe and the United States., Comment: 10 pages, no figures, contribution to the proceedings of European Workshop on the QCD Structure of the Nucleon, Ferrara, Italy, 3 - 6 April 2002

Published
2002
Full Text
View/download PDF

3. The $^3$He(e, e$'$d)p Reaction in q$\omega$-constant Kinematics

Author

Spaltro, C. M., Bauer, Th. S., Blok, H. P., Botto, T., Cisbani, E., De Leo, R., Dodge, G. E., Ent, R., Frullani, S., Garibaldi, F., Gloeckle, W., Golak, J., Harakeh, M. N., Iodice, M., Jans, E., Kamada, H., Kasdorp, W. J., Kormanyos, C., Lapikas, L., Misiejuk, A., Nagorny, S. I., Nooren, G. J., Onderwater, C. J. G., Perrino, R., van Sambeek, M., Skibinski, R., Starink, R., van der Steenhoven, G., Tjon, J., van Uden, M. A., Urciuoli, G. M., de Vries, H., Witala, H., and Yeomans, M.

Subjects
Nuclear Experiment, Nuclear Theory
Abstract

The cross section for the $^3$He(e, e$'$d)p reaction has been measured as a function of the missing momentum $p_m$ in q$\omega$ -constant kinematics at beam energies of 370 and 576 MeV for values of the three-momentum transfer $q$ of 412, 504 and 604 \mevc. The L(+TT), T and LT structure functions have been separated for $q$ = 412 and 504 \mevc. The data are compared to three-body Faddeev calculations, including meson-exchange currents (MEC), and to calculations based on a covariant diagrammatic expansion. The influence of final-state interactions and meson-exchange currents is discussed. The $p_m$-dependence of the data is reasonably well described by all calculations. However, the most advanced Faddeev calculations, which employ the AV18 nucleon-nucleon interaction and include MEC, overestimate the measured cross sections, especially the longitudinal part, and at the larger values of $q$. The diagrammatic approach gives a fair description of the cross section, but under(over)estimates the longitudinal (transverse) structure function., Comment: 17 pages, 7 figures

Published
2002
Full Text
View/download PDF

4. The Transparency of 12C for Protons

Author

Lapikas, L., van der Steenhoven, G., Frankfurt, L., Strikman, M., and Zhalov, M.

Subjects
Nuclear Experiment, Nuclear Theory
Abstract

Existing cross-section data for 1p-shell knockout in the reaction 12C(e,e'p) - as obtained under different kinematic conditions - are shown to be mutually consistent, apart from a recent measurement performed in Mainz. New data have been collected at the Amsterdam Pulse Stretcher that confirm the normalization of the older measurements. An analysis of the world's 12C(e,e'p) data has yielded precise values of the spectroscopic factor for 1p-shell and 1s-shell knockout from 12C. These values have been used to evaluate the transparency of the 12C nucleus for 1p-shell and 1s-shell protons separately on the basis of recent high-energy 12C(e,e'p) data taken at a four-momentum transfer squared of 1.1 GeV/c^2. As the resulting average value of the nuclear transparency, 0.81(0.04), is considerably higher than the value obtained from previous analyses and theoretical estimates, the high Q^2 data were used instead for an independent determination of the spectroscopic strength for 1p + 1s knockout. Combining these results with the low Q^2 data the spectroscopic factors appear to be momentum-transfer dependent. Possible explanations of these surprising results in terms of reaction-mechanism effects or a possible breakdown of the quasi-particle concept at high Q^2 are discussed as well., Comment: 11 pages 8 figures

Published
1999
Full Text
View/download PDF

5. A Large Solid Angle Study of Pion Absorption on He3

Author

LADS collaboration, Alteholz, T., Androic, D., Backenstoss, G., Bosnar, D., Breuer, H., Brkovic, A., Dobbeling, H., Dooling, T., Fong, W., Furic, M., Gram, P. A. M., Gregory, N. K., Haas, J. P., Hoffart, A., Ingram, C. H. Q., Klein, A., Koch, K., Kohler, J., Kotlinski, B., Kroedel, M., Kyle, G., Lehmann, A., Lin, Z. N., Mahl, G., Mateos, A. O., Michaelian, K., Mukhopadhyay, S., Petkovic, T., Redwine, R. P., Rowntree, D., Schumacher, R., Sennhauser, U., Simicevic, N., Smit, F. D., van der Steenhoven, G., Tieger, D. R., Trezeciak, R., Ullrich, H., Wang, M., Wang, M. H., Weyer, H. J., Wildi, M., and Wilson, K. E.

Subjects
Nuclear Theory
Abstract

Measurements have been made of pi+ absorption on He3 at T_pi+ = 118, 162, and 239 MeV using the Large Acceptance Detector System (LADS). The nearly 4pi solid angle coverage of this detector minimizes uncertainties associated with extrapolations over unmeasured regions of phase space. The total absorption cross section is reported. In addition, the total cross section is divided into components in which only two or all three nucleons play a significant role in the process. These are the first direct measurements of the total and three nucleon absorption cross sections., Comment: 8 pages, LaTeX. 3 figures, anonymous ftp MITLNS.MIT.EDU, cd LADS. Submitted to PRL. PSI-PR-94-11 (Paul Scherrer Institute) and LNS 94-56 (MIT Lab. for Nucl. Sci.)

Published
1994
Full Text
View/download PDF

7. Study of Proton-Neutron Correlations with the reaction 3,4He(e, e′d)

Author

Spaltro, C. M., Bauer, Th. S., Blok, H. P., Botto, T., Cisbani, E., Dodge, G. E., Frullani, S., Garibaldi, F., Jans, E., Iodice, M., Kasdorp, W. J., Kormanyos, C., Lapikás, L., de Leo, R., Misiejuk, A., Onderwater, C. J. G., Perrino, R., van Sambeek, M., Starink, R., van der Steenhoven, G., van Uden, M. A., Urciuoli, G. M., de Vries, H., Yeomans, M., Mitter, H., editor, Plessas, W., editor, and Guardiola, Rafael, editor

Published
1996
Full Text
View/download PDF

9. Performance of the first ANTARES detector line

Author

Ageron, M., Aguilar, J.A., Albert, A., Ameli, F., Anghinolfi, M., Anton, G., Anvar, S., Ardid, M., Aubert, J.-J., Aublin, J., Auer, R., Basa, S., Bazzotti, M., Becherini, Y., Bertin, V., Biagi, S., Bigi, A., Bigongiari, C., Bou-Cabo, M., Bouwhuis, M.C., Bruijn, R., Brunner, J., Burgio, G.F., Busto, J., Camarena, F., Capone, A., Carminati, G., Carr, J., Castel, D., Castorina, E., Cavasinni, V., Cecchini, S., Charvis, Ph., Chiarusi, T., Circella, M., Colnard, C., Coniglione, R., Costantini, H., Cottini, N., Coyle, P., De Bonis, G., Decowski, P., Dekeyser, I., Deschamps, A., Donzaud, C., Dornic, D., Drouhin, D., Druillole, F., Eberl, T., Ernenwein, J.-P., Escoffier, S., Falchini, E., Fehr, F., Flaminio, V., Fratini, K., Fuda, J.-L., Giacomelli, G., Graf, K., Guillard, G., Hallewell, G., Hello, Y., Hernández-Rey, J.J., Hößl, J., de Jong, M., Kalantar-Nayestanaki, N., Kalekin, O., Kappes, A., Katz, U., Kooijman, P., Kopper, C., Kouchner, A., Kretschmer, W., Kuch, S., Lahmann, R., Lamare, P., Lambard, G., Laschinsky, H., Lavalle, J., Le Provost, H., Lefèvre, D., Lelaizant, G., Lim, G., Lo Presti, D., Loehner, H., Loucatos, S., Louis, F., Lucarelli, F., Lyons, K., Mangano, S., Marcelin, M., Margiotta, A., Martinez-Mora, J.A., Maurin, G., Mazure, A., Melissas, M., Migneco, E., Montaruli, T., Morganti, M., Moscoso, L., Motz, H., Naumann, C., Ostasch, R., Păvălaş, G.E., Payre, P., Petrovic, J., Petta, C., Piattelli, P., Picq, C., Pillet, R., Popa, V., Pradier, T., Presani, E., Racca, C., Radu, A., Reed, C., Richardt, C., Rujoiu, M., Ruppi, M., Russo, G.V., Salesa, F., Sapienza, P., Schoeck, F., Schuller, J.-P., Shanidze, R., Simeone, F., Spurio, M., van der Steenhoven, G., Tamburini, C., Tasca, L., Toscano, S., Vecchi, M., Vernin, P., Wijnker, G., de Wolf, E., Zaborov, D., Zornoza, J.D., and Zúñiga, J.

Published
2009
Full Text
View/download PDF

10. Leading-order determination of the gluon polarization from high-p T hadron electroproduction

Author

Airapetian, A., Akopov, N., Akopov, Z., Aschenauer, E. C., Augustyniak, W., Avakian, R., Avetissian, A., Avetisyan, E., Belostotski, S., Bianchi, N., Blok, H. P., Böttcher, H., Bonomo, C., Borissov, A., Bryzgalov, V., Capiluppi, M., Capitani, G. P., Cisbani, E., Contalbrigo, M., Dalpiaz, P. F., Deconinck, W., De Leo, R., Demey, M., De Nardo, L., De Sanctis, E., Diefenthaler, M., Di Nezza, P., Dreschler, J., Düren, M., Ehrenfried, M., Elbakian, G., Ellinghaus, F., Elschenbroich, U., Fabbri, R., Fantoni, A., Felawka, L., Frullani, S., Gabbert, D., Gapienko, G., Gapienko, V., Garibaldi, F., Gavrilov, G., Gharibyan, V., Giordano, F., Gliske, S., Guler, H., Hadjidakis, C., Hartig, M., Hasch, D., Hasegawa, T., Hill, G., Hillenbrand, A., Hoek, M., Holler, Y., Hommez, B., Hristova, I., Ivanilov, A., Jackson, H. E., Kaiser, R., Keri, T., Kinney, E., Kisselev, A., Kopytin, M., Korotkov, V., Kravchenko, P., Lagamba, L., Lamb, R., Lapikás, L., Lehmann, I., Lenisa, P., Liebing, P., Linden-Levy, L. A., Lorenzon, W., Lu, X.-R., Maiheu, B., Makins, N. C. R., Marianski, B., Marukyan, H., Mexner, V., Miller, C. A., Miyachi, Y., Muccifora, V., Murray, M., Mussgiller, A., Nappi, E., Naryshkin, Y., Nass, A., Negodaev, M., Nowak, W.-D., Pappalardo, L. L., Perez-Benito, R., Pickert, N., Raithel, M., Reggiani, D., Reimer, P. E., Reischl, A., Reolon, A. R., Riedl, C., Rith, K., Rock, S. E., Rosner, G., Rostomyan, A., Rubin, J., Salomatin, Y., Schäfer, A., Schnell, G., Schüler, K. P., Seitz, B., Shearer, C., Shibata, T.-A., Shutov, V., Stancari, M., Statera, M., Steijger, J. J. M., Stewart, J., Stinzing, F., Taroian, S., Tchuiko, B., Trzcinski, A., Tytgat, M., Vandenbroucke, A., van der Nat, P. B., van der Steenhoven, G., Van Haarlem, Y., Van Hulse, C., Varanda, M., Veretennikov, D., Vilardi, I., Vogel, C., Wang, S., Yaschenko, S., Ye, H., Ye, Z., Yu, W., Zeiler, D., Zihlmann, B., Zupranski, P., and The Hermes collaboration

Published
2010
Full Text
View/download PDF

11. Spin density matrix elements in exclusive ρ 0 electroproduction on 1H and 2H targets at 27.5 GeV beam energy

Author

Airapetian, A., Akopov, N., Akopov, Z., Andrus, A., Aschenauer, E. C., Augustyniak, W., Avakian, R., Avetissian, A., Avetissian, E., Belostotski, S., Bianchi, N., Blok, H. P., Böttcher, H., Bonomo, C., Borissov, A., Brüll, A., Bryzgalov, V., Capiluppi, M., Capitani, G. P., Cisbani, E., Ciullo, G., Contalbrigo, M., Dalpiaz, P. F., Deconinck, W., De Leo, R., Demey, M., De Nardo, L., De Sanctis, E., Diefenthaler, M., Di Nezza, P., Dreschler, J., Düren, M., Ehrenfried, M., Elalaoui-Moulay, A., Elbakian, G., Ellinghaus, F., Elschenbroich, U., Fabbri, R., Fantoni, A., Felawka, L., Frullani, S., Funel, A., Gabbert, D., Gapienko, G., Gapienko, V., Garibaldi, F., Gavrilov, G., Gharibyan, V., Giordano, F., Gliske, S., Grebeniouk, O., Gregor, I. M., Guler, H., Hadjidakis, C., Hartig, M., Hasch, D., Hasegawa, T., Hesselink, W. H. A., Hill, G., Hillenbrand, A., Hoek, M., Holler, Y., Hommez, B., Hristova, I., Iarygin, G., Imazu, Y., Ivanilov, A., Izotov, A., Jackson, H. E., Jgoun, A., Kaiser, R., Keri, T., Kinney, E., Kisselev, A., Kobayashi, T., Kopytin, M., Korotkov, V., Kozlov, V., Kravchenko, P., Krivokhijine, V. G., Lagamba, L., Lamb, R., Lapikás, L., Lehmann, I., Lenisa, P., Liebing, P., Linden-Levy, L. A., Lorenzon, W., Lu, S., Lu, X.-R., Ma, B.-Q., Maiheu, B., Makins, N. C. R., Manaenkov, S. I., Mao, Y., Marianski, B., Marukyan, H., Mexner, V., Miller, C. A., Miyachi, Y., Muccifora, V., Murray, M., Mussgiller, A., Nagaitsev, A., Nappi, E., Naryshkin, Y., Nass, A., Negodaev, M., Nowak, W.-D., Osborne, A., Pappalardo, L. L., Perez-Benito, R., Pickert, N., Raithel, M., Reggiani, D., Reimer, P. E., Reischl, A., Reolon, A. R., Riedl, C., Rith, K., Rock, S. E., Rosner, G., Rostomyan, A., Rubacek, L., Rubin, J., Ryckbosch, D., Salomatin, Y., Sanjiev, I., Schäfer, A., Schnell, G., Schüler, K. P., Seitz, B., Shearer, C., Shibata, T.-A., Shutov, V., Stancari, M., Statera, M., Steffens, J. E., Steijger, J. J. M., Stenzel, H., Stewart, J., Stinzing, F., Streit, J., Tait, P., Taroian, S., Tchuiko, B., Terkulov, A., Trzcinski, A., Tytgat, M., Vandenbroucke, A., van der Nat, P. B., van der Steenhoven, G., Van Haarlem, Y., Van Hulse, C., Varanda, M., Veretennikov, D., Vikhrov, V., Vilardi, I., Vogel, C., Wang, S., Yaschenko, S., Ye, H., Ye, Y., Ye, Z., Yen, S., Yu, W., Zeiler, D., Zihlmann, B., Zupranski, P., and The HERMES Collaboration

Published
2009
Full Text
View/download PDF

12. Studies of a full-scale mechanical prototype line for the ANTARES neutrino telescope and tests of a prototype instrument for deep-sea acoustic measurements

Author

Ageron, M., Aguilar, J.A., Albert, A., Ameli, F., Anghinolfi, M., Anton, G., Anvar, S., Ardellier-Desages, F., Aslanides, E., Aubert, J.-J., Auer, R., Barbarito, E., Basa, S., Battaglieri, M., Bazzotti, M., Becherini, Y., Béthoux, N., Beltramelli, J., Bertin, V., Bigi, A., Billault, M., Blaes, R., de Botton, N., Bouwhuis, M.C., Bruijn, R., Brunner, J., Burgio, G.F., Busto, J., Cafagna, F., Caillat, L., Calzas, A., Capone, A., Caponetto, L., Carmona, E., Carr, J., Castel, D., Castorina, E., Cavasinni, V., Cecchini, S., Ceres, A., Charvis, P., Chauchot, P., Chiarusi, T., Circella, M., Coail, J.-Y., Colnard, C., Compére, C., Coniglione, R., Cottini, N., Coyle, P., Cuneo, S., Cussatlegras, A.-S., Damy, G., van Dantzig, R., DeBonis, G., De Marzo, C., De Vita, R., Dekeyser, I., Delagnes, E., Denans, D., Deschamps, A., Dessa, J.-X., Destelle, J.-J., Dinkespieler, B., Distefano, C., Donzaud, C., Drogou, J-F., Druillole, F., Durand, D., Ernenwein, J.-P., Escoffier, S., Falchini, E., Favard, S., Fehr, F., Feinstein, F., Fiorello, C., Flaminio, V., Fratini, K., Fuda, J.-L., Galeotti, S., Gallone, J.-M., Giacomelli, G., Girard, N., Gojak, C., Goret, Ph., Graf, K., Guilloux, F., Hallewell, G., Harakeh, M.N., Hartmann, B., Heijboer, A., Heine, E., Hello, Y., Hernández-Rey, J.J., Hößl, J., Hoffman, C., Hogenbirk, J., Hubbard, J.R., Jaquet, M., Jaspers, M., de Jong, M., Jouvenot, F., Kalantar-Nayestanaki, N., Kappes, A., Karg, T., Katz, U., Keller, P., Kneib, J.P., Kok, E., Kok, H., Kooijman, P., Kopper, C., Kouchner, A., Kretschmer, W., Kruijer, A., Kuch, S., Lagier, P., Lahmann, R., Lamanna, G., Lamare, P., Lambard, G., Languillat, J.C., Laschinsky, H., Lavalle, J., Le Guen, Y., Le Provost, H., Le Van Suu, A., Lefévre, D., Legou, T., Lelaizant, G., Lim, G., Lo Presti, D., Loaec, G., Loehner, H., Loucatos, S., Louis, F., Lucarelli, F., Lyashuk, V., Mangano, S., Marcelin, M., Margiotta, A., Masullo, R., Mazéas, F., Mazure, A., Megna, R., Melissas, M., Migneco, E., Mongelli, M., Montaruli, T., Morganti, M., Moscoso, L., Motz, H., Musumeci, M., Naumann, C., Naumann-Godo, M., Niess, V., Noble, A., Olivetto, C., Ostasch, R., Palanque-Delabrouille, N., Payre, P., Peek, H.Z., Perez, A., Petta, C., Piattelli, P., Pillet, R., Pineau, J.-P., Poinsignon, J., Popa, V., Pradier, T., Racca, C., Randazzo, N., van Randwijk, J., Real, D., Regnier, M., van Rens, B., Réthoré, F., Rewiersma, P., Riccobene, G., Rigaud, V., Ripani, M., Roca, V., Roda, C., Rolin, J.F., Rostovtsev, A., Roux, J., Ruppi, M., Russo, G.V., Rusydi, G., Salesa, F., Salomon, K., Sapienza, P., Schmitt, F., Schuller, J.-P., Shanidze, R., Sokalski, I., Spona, T., Spurio, M., van der Steenhoven, G., Stolarczyk, T., Streeb, K., Sulak, L., Taiuti, M., Tamburini, C., Tao, C., Tasca, L., Terreni, G., Urbano, F., Valdy, P., Valente, V., Vallage, B., Vaudaine, G., Venekamp, G., Verlaat, B., Vernin, P., van Wijk, R., Wijnker, G., Wobbe, G., de Wolf, E., Yao, A.-F., Zaborov, D., Zaccone, H., Zornoza, J.D., and Zúñiga, J.

Published
2007
Full Text
View/download PDF

13. The ANTARES optical beacon system

Author

Ageron, M., Aguilar, J.A., Albert, A., Ameli, F., Anghinolfi, M., Anton, G., Anvar, S., Ardellier-Desages, F., Aslanides, E., Aubert, J-J., Auer, R., Barbarito, E., Basa, S., Battaglieri, M., Becherini, Y., Beltramelli, J., Bertin, V., Bigi, A., Billault, M., Blaes, R., de Botton, N., Bouwhuis, M.C., Bradbury, S.M., Bruijn, R., Brunner, J., Burgio, G.F., Busto, J., Cafagna, F., Caillat, L., Calzas, A., Capone, A., Caponetto, L., Carmona, E., Carr, J., Cartwright, S.L., Castel, D., Castorina, E., Cavasinni, V., Cecchini, S., Ceres, A., Charvis, P., Chauchot, P., Chiarusi, T., Circella, M., Colnard, C., Compère, C., Coniglione, R., Cottini, N., Coyle, P., Cuneo, S., Cussatlegras, A-S., Damy, G., van Dantzig, R., De Bonis, G., De Marzo, C., De Vita, R., Dekeyser, I., Delagnes, E., Denans, D., Deschamps, A., Destelle, J-J., Dinkespieler, B., Distefano, C., Donzaud, C., Drogou, J-F., Druillole, F., Durand, D., Ernenwein, J-P., Escoffier, S., Falchini, E., Favard, S., Fehr, F., Feinstein, F., Ferry, S., Fiorello, C., Flaminio, V., Fratini, K., Fuda, J-L., Galeotti, S., Gallone, J-M., Giacomelli, G., Girard, N., Gojak, C., Goret, Ph., Graf, K., Hallewell, G., Harakeh, M.N., Hartmann, B., Heijboer, A., Heine, E., Hello, Y., Hernández-Rey, J.J., Hößl, J., Hoffman, C., Hogenbirk, J., Hubbard, J.R., Jaquet, M., Jaspers, M., de Jong, M., Jouvenot, F., Kalantar-Nayestanaki, N., Kappes, A., Karg, T., Katz, U., Keller, P., Kok, E., Kok, H., Kooijman, P., Kopper, C., Korolkova, E.V., Kouchner, A., Kretschmer, W., Kruijer, A., Kuch, S., Kudryavstev, V.A., Lagier, P., Lahmann, R., Lamanna, G., Lamare, P., Lambard, G., Languillat, J-C., Laschinsky, H., Lavalle, J., Le Guen, Y., Le Provost, H., Le Van Suu, A., Lefèvre, D., Legou, T., Lelaizant, G., Lim, G., Lo Presti, D., Loehner, H., Loucatos, S., Louis, F., Lucarelli, F., Lyashuk, V., Marcelin, M., Margiotta, A., Masullo, R., Mazéas, F., Mazure, A., McMillan, J.E., Megna, R., Melissas, M., Migneco, E., Milovanovic, A., Mongelli, M., Montaruli, T., Morganti, M., Moscoso, L., Musumeci, M., Naumann-Godo, M., Naumann, C., Niess, V., Noble, T., Olivetto, C., Ostasch, R., Palanque-Delabrouille, N., Payre, P., Peek, H., Perez, A., Petta, C., Piattelli, P., Pillet, R., Pineau, J-P., Poinsignon, J., Popa, V., Pradier, T., Racca, C., Randazzo, N., van Randwijk, J., Real, D., van Rens, B., Réthoré, F., Rewiersma, P., Riccobene, G., Rigaud, V., Ripani, M., Roca, V., Roda, C., Rolin, J.F., Rose, H.J., Rostovtsev, A., Roux, J., Ruppi, M., Russo, G.V., Rusydi, G., Salesa, F., Salomon, K., Sapienza, P., Schmitt, F., Schuller, J-P., Shanidze, R., Sokalski, I., Spona, T., Spurio, M., van der Steenhoven, G., Stolarczyk, T., Streeb, K., Sulak, L., Taiuti, M., Tamburini, C., Tao, C., Terreni, G., Thompson, L.F., Urbano, F., Valdy, P., Valente, V., Vallage, B., Vaudaine, G., Venekamp, G., Verlaat, B., Vernin, P., de Vries-Uiterweerd, G., van Wijk, R., Wijnker, G., de Witt Huberts, P., Wobbe, G., de Wolf, E., Yao, A-F., Zaborov, D., Zaccone, H., Zornoza, J.D., and Zúñiga, J.

Published
2007
Full Text
View/download PDF

14. The data acquisition system for the ANTARES neutrino telescope

Author

Aguilar, J.A., Albert, A., Ameli, F., Anghinolfi, M., Anton, G., Anvar, S., Aslanides, E., Aubert, J.-J., Barbarito, E., Basa, S., Battaglieri, M., Becherini, Y., Bellotti, R., Beltramelli, J., Bertin, V., Bigi, A., Billault, M., Blaes, R., de Botton, N., Bouwhuis, M.C., Bradbury, S.M., Bruijn, R., Brunner, J., Burgio, G.F., Busto, J., Cafagna, F., Caillat, L., Calzas, A., Capone, A., Caponetto, L., Carmona, E., Carr, J., Cartwright, S.L., Castel, D., Castorina, E., Cavasinni, V., Cecchini, S., Ceres, A., Charvis, P., Chauchot, P., Chiarusi, T., Circella, M., Colnard, C., Compère, C., Coniglione, R., Cottini, N., Coyle, P., Cuneo, S., Cussatlegras, A.-S., Damy, G., van Dantzig, R., De Marzo, C., Dekeyser, I., Delagnes, E., Denans, D., Deschamps, A., Dessages-Ardellier, F., Destelle, J.-J., Dinkespieler, B., Distefano, C., Donzaud, C., Drogou, J.-F., Druillole, F., Durand, D., Ernenwein, J.-P., Escoffier, S., Falchini, E., Favard, S., Feinstein, F., Ferry, S., Festy, D., Fiorello, C., Flaminio, V., Galeotti, S., Gallone, J.-M., Giacomelli, G., Girard, N., Gojak, C., Goret, Ph., Graf, K., Hallewell, G., Harakeh, M.N., Hartmann, B., Heijboer, A., Heine, E., Hello, Y., Hernández-Rey, J.J., Hößl, J., Hoffman, C., Hogenbirk, J., Hubbard, J.R., Jaquet, M., Jaspers, M., de Jong, M., Jouvenot, F., Kalantar-Nayestanaki, N., Kappes, A., Karg, T., Karkar, S., Katz, U., Keller, P., Kok, H., Kooijman, P., Kopper, C., Korolkova, E.V., Kouchner, A., Kretschmer, W., Kruijer, A., Kuch, S., Kudryavstev, V.A., Lachartre, D., Lafoux, H., Lagier, P., Lahmann, R., Lamanna, G., Lamare, P., Languillat, J.C., Laschinsky, H., Le Guen, Y., Le Provost, H., Le Van Suu, A., Legou, T., Lim, G., Lo Nigro, L., Lo Presti, D., Loehner, H., Loucatos, S., Louis, F., Lucarelli, F., Lyashuk, V., Marcelin, M., Margiotta, A., Masullo, R., Mazéas, F., Mazure, A., McMillan, J.E., Megna, R., Melissas, M., Migneco, E., Milovanovic, A., Mongelli, M., Montaruli, T., Morganti, M., Moscoso, L., Musumeci, M., Naumann, C., Naumann-Godo, M., Niess, V., Olivetto, C., Ostasch, R., Palanque-Delabrouille, N., Payre, P., Peek, H., Petta, C., Piattelli, P., Pineau, J.-P., Poinsignon, J., Popa, V., Pradier, T., Racca, C., Randazzo, N., van Randwijk, J., Real, D., van Rens, B., Réthoré, F., Rewiersma, P., Riccobene, G., Rigaud, V., Ripani, M., Roca, V., Roda, C., Rolin, J.F., Romita, M., Rose, H.J., Rostovtsev, A., Roux, J., Ruppi, M., Russo, G.V., Salesa, F., Salomon, K., Sapienza, P., Schmitt, F., Schuller, J.-P., Shanidze, R., Sokalski, I., Spona, T., Spurio, M., van der Steenhoven, G., Stolarczyk, T., Streeb, K., Stubert, D., Sulak, L., Taiuti, M., Tamburini, C., Tao, C., Terreni, G., Thompson, L.F., Valdy, P., Valente, V., Vallage, B., Venekamp, G., Verlaat, B., Vernin, P., de Vita, R., de Vries, G., van Wijk, R., de Witt Huberts, P., Wobbe, G., de Wolf, E., Yao, A.-F., Zaborov, D., Zaccone, H., Zornoza, J.D., and Zúñiga, J.

Published
2007
Full Text
View/download PDF

16. First results of the Instrumentation Line for the deep-sea ANTARES neutrino telescope

Author

Aguilar, J.A., Albert, A., Ameli, F., Anghinolfi, M., Anton, G., Anvar, S., Aslanides, E., Aubert, J.-J., Barbarito, E., Basa, S., Battaglieri, M., Becherini, Y., Bellotti, R., Beltramelli, J., Bertin, V., Bigi, A., Billault, M., Blaes, R., de Botton, N., Bouwhuis, M.C., Bradbury, S.M., Bruijn, R., Brunner, J., Burgio, G.F., Busto, J., Cafagna, F., Caillat, L., Calzas, A., Capone, A., Caponetto, L., Carmona, E., Carr, J., Cartwright, S.L., Castel, D., Castorina, E., Cavasinni, V., Cecchini, S., Ceres, A., Charvis, P., Chauchot, P., Chiarusi, T., Circella, M., Colnard, C., Compère, C., Coniglione, R., Cottini, N., Coyle, P., Cuneo, S., Cussatlegras, A.-S., Damy, G., van Dantzig, R., De Marzo, C., Dekeyser, I., Delagnes, E., Denans, D., Deschamps, A., Dessages-Ardellier, F., Destelle, J.-J., Dinkespieler, B., Distefano, C., Donzaud, C., Drogou, J.-F., Druillole, F., Durand, D., Ernenwein, J.-P., Escoffier, S., Falchini, E., Favard, S., Feinstein, F., Ferry, S., Festy, D., Fiorello, C., Flaminio, V., Galeotti, S., Gallone, J.-M., Giacomelli, G., Girard, N., Gojak, C., Goret, Ph., Graf, K., Hallewell, G., Harakeh, M.N., Hartmann, B., Heijboer, A., Heine, E., Hello, Y., Hernández-Rey, J.J., Hößl, J., Hoffman, C., Hogenbirk, J., Hubbard, J.R., Jaquet, M., Jaspers, M., de Jong, M., Jouvenot, F., Kalantar-Nayestanaki, N., Kappes, A., Karg, T., Karkar, S., Katz, U., Keller, P., Kok, H., Kooijman, P., Kopper, C., Korolkova, E.V., Kouchner, A., Kretschmer, W., Kruijer, A., Kuch, S., Kudryavstev, V.A., Lachartre, D., Lafoux, H., Lagier, P., Lahmann, R., Lamanna, G., Lamare, P., Languillat, J.C., Laschinsky, H., Le Guen, Y., Le Provost, H., Le Van Suu, A., Legou, T., Lim, G., Lo Nigro, L., Lo Presti, D., Loehner, H., Loucatos, S., Louis, F., Lucarelli, F., Lyashuk, V., Marcelin, M., Margiotta, A., Masullo, R., Mazéas, F., Mazure, A., McMillan, J.E., Megna, R., Melissas, M., Migneco, E., Milovanovic, A., Mongelli, M., Montaruli, T., Morganti, M., Moscoso, L., Musumeci, M., Naumann, C., Naumann-Godo, M., Niess, V., Olivetto, C., Ostasch, R., Palanque-Delabrouille, N., Payre, P., Peek, H., Petta, C., Piattelli, P., Pineau, J.-P., Poinsignon, J., Popa, V., Pradier, T., Racca, C., Randazzo, N., van Randwijk, J., Real, D., van Rens, B., Réthoré, F., Rewiersma, P., Riccobene, G., Rigaud, V., Ripani, M., Roca, V., Roda, C., Rolin, J.F., Romita, M., Rose, H.J., Rostovtsev, A., Roux, J., Ruppi, M., Russo, G.V., Salesa, F., Salomon, K., Sapienza, P., Schmitt, F., Schuller, J.-P., Shanidze, R., Sokalski, I., Spona, T., Spurio, M., van der Steenhoven, G., Stolarczyk, T., Streeb, K., Stubert, D., Sulak, L., Taiuti, M., Tamburini, C., Tao, C., Terreni, G., Thompson, L.F., Valdy, P., Valente, V., Vallage, B., Venekamp, G., Verlaat, B., Vernin, P., de Vita, R., de Vries, G., van Wijk, R., de Witt Huberts, P., Wobbe, G., de Wolf, E., Yao, A.-F., Zaborov, D., Zaccone, H., Zornoza, J.D., and Zúñiga, J.

Published
2006
Full Text
View/download PDF

17. Deuteron Electrodisintegration at High Missing Momenta

Author

Kasdorp, W.-J., Hesselink, W. H. A., Groep, D., Jans, E., Kalantar-Nayestanaki, N., Lapikás, L., van Leeuwe, J. J., Misiejuk, A., Nooren, G. J. L., Onderwater, C. J. G., Pellegrino, A. R., Spaltro, C. M., Starink, R., van der Steenhoven, G., Steijger, J. J. M., and Templon, J. A.

Published
1998
Full Text
View/download PDF

19. The HERMES polarized hydrogen and deuterium gas target in the HERA electron storage ring

Author

Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Andrus, A., Aschenauer, E.C., Augustyniak, W., Avakian, R., Avetissian, A., Avetissian, E., Bailey, P., Balin, D., Baumgarten, C., Beckmann, M., Belostotski, S., Bianchi, N., Blok, H.P., Böttcher, H., Borissov, A., Borysenko, A., Bouwhuis, M., Braun, B., Brüll, A., Bryzgalov, V., Capitani, G.P., Capiluppi, M., Chen, T., Ciullo, G., Contalbrigo, M., Court, G., Dalpiaz, P.F., De Leo, R., Demey, M., De Nardo, L., De Sanctis, E., Devitsin, E., Di Nezza, P., Düren, M., Ehrenfried, M., Elalaoui-Moulay, A., Elbakian, G., Ellinghaus, F., Elschenbroich, U., Fabbri, R., Fantoni, A., Fechtchenko, A., Felawka, L., Frullani, S., Gapienko, G., Gapienko, V., Garibaldi, F., Garrow, K., Gavrilov, G., Gharibyan, V., Graw, G., Grebeniouk, O., Gregor, I.M., Hadjidakis, C., Haeberli, W., Hafidi, K., Hartig, M., Hasch, D., Heesbeen, D., Henoch, M., Hertenberger, R., Hesselink, W.H.A., Hillenbrand, A., Hoek, M., Holler, Y., Hommez, B., Hristova, I., Iarygin, G., Ivanilov, A., Izotov, A., Jackson, H.E., Jgoun, A., Kaiser, R., Kinney, E., Kisselev, A., Kobayashi, T., Koch, N., Kolster, H., Kopytin, M., Korotkov, V., Kozlov, V., Krauss, B., Krivokhijine, V.G., Lagamba, L., Lapikás, L., Laziev, A., Lenisa, P., Liebing, P., Linden-Levy, L.A., Lorenzon, W., Lu, H., Lu, J., Lu, S., Ma, B.-Q., Maiheu, B., Makins, N.C.R., Mao, Y., Marianski, B., Marukyan, H., Mexner, V., Meyners, N., Mussa, R., Mikloukho, O., Miller, C.A., Miyachi, Y., Muccifora, V., Nagaitsev, A., Nappi, E., Naryshkin, Y., Nass, A., Negodaev, M., Nowak, W.-D., Oganessyan, K., Ohsuga, H., Osborne, A., Pickert, N., Potterveld, D.H., Raithel, M., Reggiani, D., Reimer, P.E., Reischl, A., Reolon, A.R., Riedl, C., Rith, K., Rosner, G., Rostomyan, A., Rubacek, L., Rubin, J., Ryckbosch, D., Salomatin, Y., Sanjiev, I., Savin, I., Schill, C., Schnell, G., Schüler, K.P., Seele, J., Seidl, R., Seitz, B., Shanidze, R., Shearer, C., Shibata, T.-A., Shutov, V., Sinram, K., Sommer, W., Stancari, M., Statera, M., Steffens, E., Steijger, J.J.M., Stenzel, H., Stewart, J., Stinzing, F., Tait, P., Tanaka, H., Taroian, S., Tchuiko, B., Terkulov, A., Trzcinski, A., Tytgat, M., Vandenbroucke, A., van der Nat, P., van der Steenhoven, G., van Haarlem, Y., Vetterli, M.C., Vikhrov, V., Vincter, M.G., Vogel, C., Volmer, J., Wang, S., Wendland, J., Wilbert, J., Wise, T., Ybeles Smit, G., Ye, Y., Ye, Z., Yen, S., Zihlmann, B., and Zupranski, P.

Published
2005
Full Text
View/download PDF

24. Study of Proton-Neutron Correlations with the reaction 3,4He(e, e′d)

Author

Spaltro, C. M., primary, Bauer, Th. S., additional, Blok, H. P., additional, Botto, T., additional, Cisbani, E., additional, Dodge, G. E., additional, Frullani, S., additional, Garibaldi, F., additional, Jans, E., additional, Iodice, M., additional, Kasdorp, W. J., additional, Kormanyos, C., additional, Lapikás, L., additional, de Leo, R., additional, Misiejuk, A., additional, Onderwater, C. J. G., additional, Perrino, R., additional, van Sambeek, M., additional, Starink, R., additional, van der Steenhoven, G., additional, van Uden, M. A., additional, Urciuoli, G. M., additional, de Vries, H., additional, and Yeomans, M., additional

Published
1995
Full Text
View/download PDF

26. Nuclear effects on R= σL/ σT in deep-inelastic scattering

Author

Ackerstaff, K, Airapetian, A, Akopov, N, Akushevich, I, Amarian, M, Aschenauer, E.C, Avakian, H, Avakian, R, Avetissian, A, Bains, B, Baumgarten, C, Beckmann, M, Belostotski, S, Belz, J.E, Benisch, Th, Bernreuther, S, Bianchi, N, Blouw, J, Böttcher, H, Borissov, A, Bouwhuis, M, Brack, J, Brauksiepe, S, Braun, B, Bray, B, Brons, St, Brückner, W, Brüll, A, Bruins, E.E.W, Bulten, H.J, Capitani, G.P, Carter, P, Chumney, P, Cisbani, E, Court, G.R, Dalpiaz, P.F, De Sanctis, E, De Schepper, D, Devitsin, E, de Witt Huberts, P.K.A, Di Nezza, P, Düren, M, Dvoredsky, A, Elbakian, G, Ely, J, Fantoni, A, Fechtchenko, A, Ferstl, M, Fiedler, K, Filippone, B.W, Fischer, H, Fox, B, Franz, J, Frullani, S, Funk, M.-A, Gärber, Y, Gao, H, Garibaldi, F, Gavrilov, G, Geiger, P, Gharibyan, V, Golendukhin, A, Graw, G, Grebeniouk, O, Green, P.W, Greeniaus, L.G, Grosshauser, C, Guidal, M, Gute, A, Gyurjyan, V, Haas, J.P, Haeberli, W, Hansen, J.-O, Hartig, M, Hasch, D, Häusser, O, Heinsius, F.H, Henderson, R, Henoch, M, Hertenberger, R, Holler, Y, Holt, R.J, Hoprich, W, Ihssen, H, Iodice, M, Izotov, A, Jackson, H.E, Jgoun, A, Kaiser, R, Kinney, E, Kirsch, M, Kisselev, A, Kitching, P, Kobayashi, H, Koch, N, Königsmann, K, Kolstein, M, Kolster, H, Korotkov, V, Korsch, W, Kozlov, V, Kramer, L.H, Krivokhijine, V.G, Kurisuno, M, Kyle, G, Lachnit, W, Lenisa, P, Lorenzon, W, Makins, N.C.R, Martens, F.K, Martin, J.W, Masoli, F, Mateos, A, McAndrew, M, McIlhany, K, McKeown, R.D, Meissner, F, Menden, F, Metz, A, Meyners, N, Mikloukho, O, Miller, C.A, Miller, M.A, Milner, R, Most, A, Muccifora, V, Mussa, R, Nagaitsev, A, Naryshkin, Yu, Nathan, A.M, Neunreither, F, Niczyporuk, J.M, Nowak, W.-D, Nupieri, M, O'Neill, T.G, Openshaw, R, Ouyang, J, Owen, B.R, Papavassiliou, V, Pate, S.F, Pitt, M, Potashov, S, Potterveld, D.H, Rakness, G, Reali, A, Redwine, R, Reolon, A.R, Ristinen, R, Rith, K, Rossi, P, Rudnitsky, S, Ruh, M, Ryckbosch, D, Sakemi, Y, Savin, I, Scarlett, C, Schäfer, A, Schmidt, F, Schmitt, H, Schnell, G, Schüler, K.P, Schwind, A, Seibert, J, Shibata, T.-A, Shibatani, K, Shin, T, Shutov, V, Simani, C, Simon, A, Sinram, K, Slavich, P, Spengos, M, Steffens, E, Stenger, J, Stewart, J, Stoesslein, U, Sutter, M, Tallini, H, Taroian, S, Terkulov, A, Thomas, E, Tipton, B, Tytgat, M, Urciuoli, G.M, van den Brand, J.F.J, van der Steenhoven, G, van de Vyver, R, van Hunen, J.J, Vetterli, M.C, Vikhrov, V, Vincter, M.G, Visser, J, Volk, E, Wander, W, Wendland, J, Williamson, S.E, Wise, T, Woller, K, Yoneyama, S, and Zohrabian, H

Published
2000
Full Text
View/download PDF

27. Flavor decomposition of the polarized quark distributions in the nucleon from inclusive and semi-inclusive deep-inelastic scattering

Author

Ackerstaff, K., Airapetian, A., Akopov, N., Akushevich, I., Amarian, M., Aschenauer, E.C., Avakian, H., Avakian, R., Avetissian, A., Bains, B., Barrow, S., Baumgarten, C., Beckmann, M., Belostotski, S., Belz, J.E., Benisch, Th., Bernreuther, S., Bianchi, N., Blanchard, S., Blouw, J., Böttcher, H., Borissov, A., Brack, J., Bray, B., Brauksiepe, S., Braun, B., Brons, St., Brückner, W., Brüll, A., Bruins, E.E.W., Bulten, H.J., Cadman, R.V., Capitani, G.P., Carter, P., Chumney, P., Cisbani, E., Court, G.R., Dalpiaz, P.F., De Leo, R., Delheij, P.P.J., De Sanctis, E., De Schepper, D., Devitsin, E., de Witt Huberts, P.K.A., Di Nezza, P., Düren, M., Dvoredsky, A., Ely, J., Elbakian, G., Emerson, J., Fantoni, A., Fechtchenko, A., Ferstl, M., Fick, D., Fiedler, K., Filippone, B.W., Fischer, H., Fortune, H.T., Fox, B., Frabetti, S., Franz, J., Frullani, S., Funk, M.-A., Gagunashvili, N.D., Galumian, P., Gao, H., Gärber, Y., Garibaldi, F., Gavrilov, G., Geiger, P., Gharibyan, V., Golendukhin, A., Graw, G., Grebeniouk, O., Green, P.W., Greeniaus, L.G., Grosshauser, C., Guidal, M., Gute, A., Gyurjyan, V., Haas, J.P., Haeberli, W., Hansen, J.-O., Hasch, D., Häusser, O., Henderson, R., Heinsius, F.H., Henkes, Th., Henoch, M., Hertenberger, R., Holler, Y., Holt, R.J., Hoprich, W., Ihssen, H., Iodice, M., Izotov, A., Jackson, H.E., Jgoun, A., Jones, C., Kaiser, R., Kestel, M., Kinney, E., Kirsch, M., Kisselev, A., Kitching, P., Kobayashi, H., Koch, N., Königsmann, K., Kolstein, M., Kolster, H., Korotkov, V., Korsch, W., Kozlov, V., Kramer, L.H., Krause, B., Krivokhijine, V.G., Kückes, M., Kümmell, F., Kurisuno, M., Kyle, G., Lachnit, W., Lorenzon, W., Lung, A., Makins, N.C.R., Martens, F.K., Martin, J.W., Marukyan, H., Masoli, F., Mateos, A., Maul, M., McAndrew, M., McIlhany, K., McKeown, R.D., Meissner, F., Menden, F., Mercer, D., Metz, A., Meyners, N., Mikloukho, O., Miller, C.A., Miller, M.A., Milner, R., Mitsyn, V., Most, A., Mozzetti, R., Muccifora, V., Nagaitsev, A., Nappi, E., Naryshkin, Yu., Nathan, A.M., Neunreither, F., Niczyporuk, J.M., Nowak, W.-D., Nupieri, M., Oelwein, P., Ogami, H., O'Neill, T.G., Openshaw, R., Owen, B.R., Ouyang, J., Papavassiliou, V., Pate, S.F., Pitt, M., Poolman, H.R., Potashov, S., Potterveld, D.H., Rakness, G., Reali, A., Redwine, R., Reolon, A.R., Ristinen, R., Rith, K., Röper, G., Rossi, P., Rudnitsky, S., Ruh, M., Ryckbosch, D., Sakemi, Y., Savin, I., Scarlett, C., Schäfer, A., Schmidt, F., Schmitt, H., Schnell, G., Schüler, K.P., Schwind, A., Seibert, J., Shibata, T.-A., Shibatani, K., Shin, T., Shutov, V., Simani, C., Simon, A., Sinram, K., Slavich, P., Smythe, W.R., Sowinski, J., Spengos, M., Steffens, E., Stenger, J., Stewart, J., Stock, F., Stoesslein, U., Sutter, M., Tallini, H., Taroian, S., Terkulov, A., Thiessen, D.M., Tipton, B., Thomas, E., Trudel, A., Tytgat, M., Urciuoli, G.M., van Hunen, J.J., van de Vyver, R., van den Brand, J.F.J., van der Steenhoven, G., Vetterli, M.C., Vikhrov, V., Vincter, M., Visser, J., Volk, E., Wander, W., Welch, T.P., Wendland, J., Williamson, S.E., Wise, T., Woller, K., Yoneyama, S., Zapfe, K., Zohrabian, H., and Zurmühle, R.

Published
1999
Full Text
View/download PDF

28. The HARP liquid hydrogen system

Author

van Uden, M.A., van der Meer, R.L.J., Bauer, Th.S., Bron, M., Buis, R., de Groen, P.J.M., Lefevere, Y., Nooren, G.J.L., Postma, H., van der Steenhoven, G., and Willering, H.W.

Published
1999
Full Text
View/download PDF

29. q and pm Dependence of the 3He(e,e'd)p Reaction

Author

Vrije Universiteit, de Boelelaan 1081, 1081 HV Amsterdam, The Netherlands, NIKHEF, P.O. Box 41882, 1009 DB Amsterdam, The Netherlands, NIKHEF, P.O. Box 41882, 1009 DB Amsterdam, The Netherlands, Universiteit Utrecht, P.O. Box 80.000, 3508 TA Utrecht, The Netherlands, NIKHEF, P.O. Box 41882, 1009 DB Amsterdam, The Netherlands, INFN Sezione Sanita', Viale Regina Elena 299, 00161 Rome, Italy, INFN, Via per Arnesano, 73100 Lecce, Italy, TJNAF, 12000 Jefferson Avenue, Newport News, Virginia 23606, Ruhr-Universität Bochum, Universitätsstrasse 150, D-44780 Bochum, Germany, Institute of Physics, Jagellonian University, PL-30059 Cracow, Poland, KVI, Zernikelaan 25, 9747 AA Groningen, The Netherlands, Universiteit Utrecht, P.O. Box 80.000, 3508 TA Utrecht, The Netherlands, Spaltro, C. M., Bauer, Th. S., Blok, H. P., Botto, T., Cisbani, E., De Leo, R., Dodge, G. E., Ent, R., Frullani, S., Garibaldi, F., Glöckle, W., Golak, J., Harakeh, M. N., Iodice, M., Jans, E., Kamada, H., Kasdorp, W. J., Kormanyos, C., Lapikás, L, Misiejuk, A., Nagorny, S. I., Nooren, G. J., Onderwater, C. J. G., Perrino, R., van Sambeek, M. J. M., Starink, R., van der Steenhoven, G., Tjon, J., van Uden, M. A., Urciuoli, G. M, de Vries, H., Witala, J, Yeomans, D. M, Vrije Universiteit, de Boelelaan 1081, 1081 HV Amsterdam, The Netherlands, NIKHEF, P.O. Box 41882, 1009 DB Amsterdam, The Netherlands, NIKHEF, P.O. Box 41882, 1009 DB Amsterdam, The Netherlands, Universiteit Utrecht, P.O. Box 80.000, 3508 TA Utrecht, The Netherlands, NIKHEF, P.O. Box 41882, 1009 DB Amsterdam, The Netherlands, INFN Sezione Sanita', Viale Regina Elena 299, 00161 Rome, Italy, INFN, Via per Arnesano, 73100 Lecce, Italy, TJNAF, 12000 Jefferson Avenue, Newport News, Virginia 23606, Ruhr-Universität Bochum, Universitätsstrasse 150, D-44780 Bochum, Germany, Institute of Physics, Jagellonian University, PL-30059 Cracow, Poland, KVI, Zernikelaan 25, 9747 AA Groningen, The Netherlands, Universiteit Utrecht, P.O. Box 80.000, 3508 TA Utrecht, The Netherlands, Spaltro, C. M., Bauer, Th. S., Blok, H. P., Botto, T., Cisbani, E., De Leo, R., Dodge, G. E., Ent, R., Frullani, S., Garibaldi, F., Glöckle, W., Golak, J., Harakeh, M. N., Iodice, M., Jans, E., Kamada, H., Kasdorp, W. J., Kormanyos, C., Lapikás, L, Misiejuk, A., Nagorny, S. I., Nooren, G. J., Onderwater, C. J. G., Perrino, R., van Sambeek, M. J. M., Starink, R., van der Steenhoven, G., Tjon, J., van Uden, M. A., Urciuoli, G. M, de Vries, H., Witala, J, and Yeomans, D. M

Abstract

type:Journal Article, The cross section for the 3He(e,e′d)p reaction has been measured for a range of missing momentum pm at incident electron energies of 370 and 576 MeV and for values of the three-momentum transfer q of 412, 504, and 604 MeV/c. The longitudinal and transverse structure functions have been separated for q = 412 and 504 MeV/c. The data are compared to exact three-body Faddeev calculations and calculations based on a covariant, gauge-invariant diagrammatic expansion. In general, fair to good agreement is observed, but there are some differences between the data and the calculations, especially for the q dependence and for the transverse structure function WT., source:https://doi.org/10.1103/PhysRevLett.81.2870

Published
2017

30. Cross sections for hard exclusive electroproduction of π+ mesons on a hydrogen target

Author

Airapetian, A., Akopov, N., Akopov, Z., Aschenauer, E.C., Augustyniak, W., Avetissian, A., Avetissian, E., Barion, L., Belostotski, S., Bianchi, N., Blok, H.P., Böttcher, H., Bonomo, C., Borissov, A., Bryzgalov, V., Burns, J., Capiluppi, M., Capitani, G.P., Cisbani, E., Ciullo, G., Contalbrigo, M., Dalpiaz, P.F., Deconinck, W., De Leo, R., Demey, M., De Nardo, L., De Sanctis, E., Diefenthaler, M., Di Nezza, P., Dreschler, J., Düren, M., Ehrenfried, M., Elbakian, G., Ellinghaus, F., Fabbri, R., Fantoni, A., Frullani, S., Gabbert, D., Gapienko, G., Gapienko, V., Garibaldi, F., Gavrilov, G., Gharibyan, V., Giordano, F., Gliske, S., Guler, H., Hadjidakis, C., Hasch, D., Hill, G., Hillenbrand, A., Hoek, M., Hristova, I., Ilyichev, A., Imazu, Y., Ivanilov, A., Jackson, H.E., Joosten, S., Kaiser, R., Keri, T., Kinney, E., Kisselev, A., Kopytin, M., Korotkov, V., Kravchenko, P., Krivokhijine, V.G., Lagamba, L., Lamb, R., Lapikás, L., Lehmann, I., Lenisa, P., Linden-Levy, L.A., Lopez Ruiz, A., Lorenzon, W., Lu, S., Lu, X., Mahon, D., Makins, N.C.R., Marianski, B., Marukyan, H., Miller, C.A., Miyachi, Y., Muccifora, V., Murray, M., Mussgiller, A., Nappi, E., Naryshkin, Y., Nass, A., Negodaev, M., Nowak, W.-D., Pappalardo, L.L., Perez-Benito, R., Pickert, N., Raithel, M., Reimer, P.E., Reolon, A.R., Riedl, C., Rith, K., Rock, S.E., Rosner, G., Rostomyan, A., Rubacek, L., Rubin, J., Ryckbosch, D., Salomatin, Y., Schäfer, A., Schnell, G., Schüler, K.P., Seitz, B., Shearer, C., Shibata, T.-A., Shutov, V., Stancari, M., Statera, M., Steijger, J.J.M., Stenzel, H., Stewart, J., Stinzing, F., Streit, J., Taroian, S., Thomas, E., Trzcinski, A., Tytgat, M., Vandenbroucke, A., van der Nat, P.B., van der Steenhoven, G., van Haarlem, Y., van Hulse, C., Varanda, M., Veretennikov, D., Vikhrov, V., Vilardi, I., Vogel, C., Wang, S., Yaschenko, S., Ye, H., Ye, Z., Yen, S., Yu, W., Zeiler, D., Zihlmann, B., and Zupranski, P.

Subjects
Nuclear and High Energy Physics
Published
2008
Full Text
View/download PDF

31. Hard exclusive electroproduction of π+π− pairs

Author

Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Ammosov, V.V., Andrus, A., Aschenauer, E.C., Augustyniak, W., Avakian, R., Avetissian, A., Avetissian, E., Bailey, P., Balin, D., Baturin, V., Beckmann, M., Belostotski, S., Bernreuther, S., Bianchi, N., Blok, H.P., Böttcher, H., Borissov, A., Borysenko, A., Bouwhuis, M., Brack, J., Brüll, A., Bryzgalov, V., Capitani, G.P., Chen, T., Ciullo, G., Contalbrigo, M., Dalpiaz, P.F., De Leo, R., Demey, M., De Nardo, L., De Sanctis, E., Devitsin, E., Di Nezza, P., Düren, M., Ehrenfried, M., Elalaoui-Moulay, A., Elbakian, G., Ellinghaus, F., Elschenbroich, U., Fabbri, R., Fantoni, A., Fechtchenko, A., Felawka, L., Frullani, S., Gapienko, G., Gapienko, V., Garibaldi, F., Garrow, K., Garutti, E., Gavrilov, G., Gharibyan, V., Graw, G., Grebeniouk, O., Greeniaus, L.G., Gregor, I.M., Griffioen, K.A., Hafidi, K., Hartig, M., Hasch, D., Heesbeen, D., Henoch, M., Hertenberger, R., Hesselink, W.H.A., Hillenbrand, A., Hoek, M., Holler, Y., Hommez, B., Iarygin, G., Ivanilov, A., Izotov, A., Jackson, H.E., Jgoun, A., Kaiser, R., Kinney, E., Kisselev, A., Kopytin, M., Korotkov, V., Kozlov, V., Krauss, B., Krivokhijine, V.G., Lagamba, L., Lapikás, L., Laziev, A., Lenisa, P., Liebing, P., Linden-Levy, L.A., Lipka, K., Lorenzon, W., Lu, H., Lu, J., Lu, S., Ma, B.-Q., Maiheu, B., Makins, N.C.R., Mao, Y., Marianski, B., Marukyan, H., Masoli, F., Mexner, V., Meyners, N., Mikloukho, O., Miller, C.A., Miyachi, Y., Muccifora, V., Nagaitsev, A., Nappi, E., Naryshkin, Y., Nass, A., Negodaev, M., Nowak, W.-D., Oganessyan, K., Ohsuga, H., Osborne, A., Pickert, N., Potashov, S., Potterveld, D.H., Raithel, M., Reggiani, D., Reimer, P.E., Reischl, A., Reolon, A.R., Riedl, C., Rith, K., Rosner, G., Rostomyan, A., Rubacek, L., Rubin, J., Ryckbosch, D., Salomatin, Y., Sanjiev, I., Savin, I., Schäfer, A., Schill, C., Schnell, G., Schüler, K.P., Seele, J., Seidl, R., Seitz, B., Shanidze, R., Shearer, C., Shibata, T.-A., Shutov, V., Sinram, K., Sommer, W., Stancari, M., Statera, M., Steffens, E., Steijger, J.J.M., Stenzel, H., Stewart, J., Stinzing, F., Tait, P., Tanaka, H., Taroian, S., Tchuiko, B., Terkulov, A., Tkabladze, A., Trzcinski, A., Tytgat, M., Vandenbroucke, A., van der Nat, P., van der Steenhoven, G., van Haarlem, Y., Vetterli, M.C., Vikhrov, V., Vincter, M.G., Vogel, C., Vogt, M., Volmer, J., Weiskopf, C., Wendland, J., Wilbert, J., Ybeles Smit, G., Ye, Y., Ye, Z., Yen, S., Zihlmann, B., and Zupranski, P.

Subjects
Nuclear and High Energy Physics
Published
2004
Full Text
View/download PDF

32. Evidence for a single-spin azimuthal asymmetry in semi-inclusive pion electroproduction

Author

Airapetian, A., Akopov, N., Beckmann, M., Krivokhijine, V. G., Kurisuno, M., Kyle, G., Lachnit, W., Lenisa, P., Lorenzon, W., Makins, N. C. R., Martens, F. K., Martin, J. W., Masoli, F., Belostotski, S., Mateos, A., McAndrew, M., McIlhany, K., McKeown, R. D., Meissner, F., Menden, F., Metz, A., Meyners, N., Mikloukho, O., Miller, C. A., Belz, J. E., Miller, M. A., Milner, R., Most, A., Muccifora, V., Mussa, R., Nagaitsev, A., Naryshkin, Y., Nathan, A. M., Neunreither, F., Niczyporuk, M., Benisch, Th., Nowak, W.-D., Nupieri, M., Oganessyan, K. A., O'Neill, T. G., Openshaw, R., Ouyang, J., Owen, B. R., Papavassiliou, V., Pate, S. F., Pitt, M., Bernreuther, S., Potashov, S., Potterveld, D. H., Rakness, G., Reali, A., Redwine, R., Reolon, A. R., Ristinen, R., Rith, K., Rossi, P., Rudnitsky, S., Bianchi, N., Ruh, M., Ryckbosch, D., Sakemi, Y., Savin, I., Scarlett, C., Schäfer, A., Schmidt, F., Schmitt, H., Schnell, G., Schüler, K. P., Blouw, J., Schwind, A., Seibert, J., Shibata, T.-A., Shibatani, K., Shin, T., Shutov, V., Simani, C., Simon, A., Sinram, K., Slavich, P., Böttcher, H., Spengos, M., Steffens, E., Stenger, J., Stewart, J., Stoesslein, U., Sutter, M., Tallini, H., Taroian, S., Terkulov, A., Teryaev, O., Borissov, A., Thomas, E., Tipton, B., Tytgat, M., Urciuoli, G. M., van den Brand, J. F. J., van der Steenhoven, G., van de Vyver, R., van Hunen, J. J., Vetterli, M. C., Vikhrov, V., Bouwhuis, M., Vincter, M. G., Visser, J., Volk, E., Wander, W., Wendland, J., Williamson, S. E., Wise, T., Woller, K., Yoneyama, S., Zohrabian, H., Amarian, M., Brack, J., HERMES Collaboration, Brauksiepe, S., Braun, B., Bray, B., Brons, St., Brückner, W., Brüll, A., Bruins, E. E. W., Bulten, H. J., Capitani, G. P., Aschenauer, E. C., Carter, P., Chumney, P., Cisbani, E., Court, G. R., Dalpiaz, P. F., De Sanctis, E., De Schepper, D., Devitsin, E., de Witt Huberts, P. K. A., Di Nezza, P., Avakian, H., Düren, M., Dvoredsky, A., Elbakian, G., Ely, J., Fantoni, A., Fechtchenko, A., Ferstl, M., Fiedler, K., Filippone, B. W., Fischer, H., Avakian, R., Fox, B., Franz, J., Frullani, S., Funk, M.-A., Gärber, Y., Gao, H., Garibaldi, F., Gavrilov, G., Geiger, P., Gharibyan, V., Avetissian, A., Golendukhin, A., Graw, G., Grebeniouk, O., Green, P. W., Greeniaus, L. G., Grosshauser, C., Guidal, M., Gute, A., Gyurjyan, V., Haas, J. P., Avetissian, E., Haeberli, W., Hansen, J.-O., Hartig, M., Hasch, D., Häusser, O., Heinsius, F. H., Henderson, R., Henoch, M., Hertenberger, R., Holler, Y., Bains, B., Holt, R. J., Hoprich, W., Ihssen, H., Iodice, M., Izotov, A., Jackson, H. E., Jgoun, A., Kaiser, R., Kinney, E., Kisselev, A., Baumgarten, C., Kitching, P., Kobayashi, H., Koch, N., Königsmann, K., Kolstein, M., Kolster, H., Korotkov, V., Korsch, W., Kozlov, V., Kramer, L. H., and (Astro)-Particles Physics

Subjects
Quark, Particle physics, Proton structure, FRAGMENTATION FUNCTIONS, media_common.quotation_subject, General Physics and Astronomy, BEAM, NUCLEONS, 01 natural sciences, Asymmetry, Nuclear physics, Pion, LEPTOPRODUCTION, 0103 physical sciences, ddc:550, DISTRIBUTIONS, Nuclear Experiment, 010306 general physics, media_common, Physics, 010308 nuclear & particles physics, Scattering, polarized target internal, Deep inelastic scattering, Transverse plane, Distribution function, ANALYZING POWER, High Energy Physics::Experiment, Lepton
Abstract

Single-spin asymmetries for semi-inclusive pion production in deep-inelastic scattering have been measured for the first time. A significant target-spin asymmetry of the distribution in the azimuthal angle straight phi of the pion relative to the lepton scattering plane was formed for pi(+) electroproduction on a longitudinally polarized hydrogen target. The corresponding analyzing power in the sinstraight phi moment of the cross section is 0.022+/-0.005+/-0.003. This result can be interpreted as the effect of terms in the cross section involving chiral-odd spin distribution functions in combination with a chiral-odd fragmentation function that is sensitive to the transverse polarization of the fragmenting quark.

Published
2000
Full Text
View/download PDF

33. q and pm Dependence of the 3He(e,e'd)p Reaction

Author

Spaltro, C. M., Bauer, Th. S., Blok, H. P., Botto, T., Cisbani, E., De Leo, R., Dodge, G. E., Ent, R., Frullani, S., Garibaldi, F., Glöckle, W., Golak, J., Harakeh, M. N., Iodice, M., Jans, E., Kamada, H., Kasdorp, W. J., Kormanyos, C., Lapikás, L, Misiejuk, A., Nagorny, S. I., Nooren, G. J., Onderwater, C. J. G., Perrino, R., van Sambeek, M. J. M., Starink, R., van der Steenhoven, G., Tjon, J., van Uden, M. A., Urciuoli, G. M, de Vries, H., Witala, J, and Yeomans, D. M

Subjects
Nuclear Experiment
Abstract

The cross section for the 3He(e,e′d)p reaction has been measured for a range of missing momentum pm at incident electron energies of 370 and 576 MeV and for values of the three-momentum transfer q of 412, 504, and 604 MeV/c. The longitudinal and transverse structure functions have been separated for q = 412 and 504 MeV/c. The data are compared to exact three-body Faddeev calculations and calculations based on a covariant, gauge-invariant diagrammatic expansion. In general, fair to good agreement is observed, but there are some differences between the data and the calculations, especially for the q dependence and for the transverse structure function WT.

Published
1998

35. Proton and deuteron F_2 structure function at low Q^2

Author

Tvaskis, V., Arrington, J., Asaturyan, R., Baker, O. K., Blok, H. P., Bosted, P., Boswell, M., Bruell, A., Christy, M. E., Cochran, A., Ent, R., Filippone, B. W., Gasparian, A., Keppel, C. E., Kinney, E., Lapikás, L., Lorenzon, W., Mack, D. J., Mammei, J., Martin, J. W., Mkrtchyan, H., Niculescu, I., Piercey, R. B., Potterveld, D. H., Smith, G., Spurlock, K., van der Steenhoven, G., Stepanyan, S., Tadevosyan, V., and Wood, S. A.

Abstract

Measurements of the proton and deuteron F2 structure functions are presented. The data, taken at Jefferson Lab Hall C, span the four-momentum transfer range 0.06 < Q^2 < 2.8 GeV^2 and Bjorken x values from 0.009 to 0.45, thus extending the knowledge of F_2 to low values of Q^2 at low x. Next-to-next-to-leading-order calculations using recent parton distribution functions start to deviate from the data for Q^2 < 2 GeV^2 at the low and high x values. Down to the lowest value of Q^2, the structure function is in good agreement with a parametrization of F_2 based on data that have been taken at much higher values of Q^2 or much lower values of x, and which are constrained by data at the photon point. The ratio of the deuteron and proton structure functions at low x remains well described by a logarithmic dependence on Q^2 at low Q^2.

Published
2010

36. Spin density matrix elements in exclusive ρ0 electroproduction on ¹H and ²H targets at 27.5 GeV beam energy

Author

Airapetian, A, Akopov, N, Akopov, Z, Andrus, A, Aschenauer, EC, Augustyniak, W, Avakian, R, Avetissian, A, Avetissian, E, Belostotski, S, Bianchi, N, Blok, HP, Bottcher, H, Bonomo, C, Borissov, A, Brull, A, Bryzgalov, V, Capiluppi, M, Capitani, GP, Cisbani, E, Ciullo, G, Contalbrigo, M, Dalpiaz, PF, Deconinck, W, De Leo, R, Demey, M, De Nardo, L, De Sanctis, E, Diefenthaler, M, Di Nezza, P, Dreschler, J, Duren, M, Ehrenfried, M, Elalaoui-Moulay, A, Elbakian, G, Ellinghaus, F, Elschenbroich, U, Fabbri, R, Fantoni, A, Felawka, L, Frullani, S, Funel, A, Gabbert, Dominik, Gapienko, G, Gapienko, V, Garibaldi, F, Gavrilov, G, Gharibyan, V, Giordano, F, Gliske, S, Grebeniouk, O, Gregor, IM, Guler, H, Hadjidakis, C, Hartig, M, Hasch, D, Hasegawa, T, Hesselink, WHA, Hill, G, Hillenbrand, A, Hoek, M, Holler, Y, Hommez, B, Hristova, I, Iarygin, G, Imazu, Y, Ivanilov, A, Izotov, A, Jackson, HE, Jgoun, A, Kaiser, R, Keri, T, Kinney, E, Kisselev, A, Kobayashi, T, Kopytin, M, Korotkov, V, Kozlov, V, Kravchenko, P, Krivokhijine, VG, Lagamba, L, Lamb, R, Lapikas, L, Lehmann, I, Lenisa, P, Liebing, P, Linden-Levy, LA, Lorenzon, W, Lu, S, Lu, XR, Ma, BQ, Maiheu, B, Makins, NCR, Manaenkov, SI, Mao, Y, Marianski, B, Marukyan, H, Mexner, V, Miller, CA, Miyachi, Y, Muccifora, V, Murray, M, Mussgiller, A, Nagaitsev, A, Nappi, E, Naryshkin, Y, Nass, A, Negodaev, M, Nowak, WD, Osborne, A, Pappalardo, LL, Perez-Benito, R, Pickert, N, Raithel, M, Reggiani, D, Reimer, PE, Reischl, A, Reolon, AR, Riedl, C, Rith, K, Rock, SE, Rosner, G, Rostomyan, A, Rubacek, L, Rubin, J, Ryckbosch, Dirk, Salomatin, Y, Sanjiev, I, Schafer, A, Schnell, Gunar, Schuler, KP, Seitz, B, Shearer, C, Shibata, TA, Shutov, V, Stancari, M, Statera, M, Steffens, JE, Steijger, JJM, Stenzel, H, Stewart, J, Stinzing, F, Streit, J, Tait, P, Taroian, S, Tchuiko, B, Terkulov, A, Trzcinski, A, Tytgat, Michael, Vandenbroucke, A, van der Nat, PB, van der Steenhoven, G, Van Haarlem, Y, Van Hulse, Charlotte, Varanda, M, Veretennikov, D, Vikhrov, V, Vilardi, I, Vogel, C, Wang, S, Yaschenko, S, Ye, H, Ye, Y, Ye, Z, Yen, S, Yu, W, Zeiler, D, Zihlmann, B, and Zupranski, P

Subjects
Physics and Astronomy, P(0) MESONS, LEPTOPRODUCTION, HERA, POLARIMETER, DISTRIBUTIONS, High Energy Physics::Experiment, HYDROGEN, Nuclear Experiment, CROSS-SECTION, INELASTIC-SCATTERING, QCD, VECTOR-MESON PRODUCTION
Abstract

Spin Density Matrix Elements (SDMEs) describing the angular distribution of exclusive rho (0) electroproduction and decay are determined in the HERMES experiment with 27.6 GeV beam energy and unpolarized hydrogen and deuterium targets. Eight (fifteen) SDMEs that are related (unrelated) to the longitudinal polarization of the beam are extracted in the kinematic region 1 < Q (2)< 7 GeV2, 3.0 < W < 6.3 GeV, and -t < 0.4 GeV2. Within the given experimental uncertainties, a hierarchy of relative sizes of helicity amplitudes is observed. Kinematic dependences of all SDMEs on Q (2) and t are presented, as well as the longitudinal-to-transverse rho (0) electroproduction cross-section ratio as a function of Q (2). A small but statistically significant deviation from the hypothesis of s-channel helicity conservation is observed. An indication is seen of a contribution of unnatural-parity-exchange amplitudes; these amplitudes are naturally generated with a quark-exchange mechanism.

Published
2009

37. Transverse Polarization of Lambda and Lambda-bar Hyperons in Quasi-Real Photon-Nucleon Scattering at HERMES

Author

Airapetian, A., Akopov, N., Avetissian, E., Mikloukho, O., Miller, C. A., Miyachi, Y., Muccifora, V., Nagaitsev, A., Nappi, E., Naryshkin, Y., Nass, A., Nowak, W.-D., Oganessyan, K., Bailey, P., Ohsuga, H., Orlandi, G., Potashov, S., Potterveld, D. H., Raithel, M., Reggiani, D., Reimer, P. E., Reischl, A., Reolon, A. R., Rith, K., Baturin, V., Rosner, G., Rostomyan, A., Ryckbosch, D., Sanjiev, I., Savin, I., Scarlett, C., Schafer, A., Schill, C., Schnell, G., Schuler, K. P., Baumgarten, C., Schwind, A., Seibert, J., Seitz, B., Shanidze, R., Shibata, T.-A., Shutov, V., Simani, M. C., Sinram, K., Stancari, M., Statera, M., Beckmann, M., Steffens, E., Steijger, J. J. M., Stewart, J., Stosslein, U., Tanaka, H., Taroian, S., Tchuiko, B., Terkulov, A., Tessarin, S., Thomas, E., Belostotski, S., Tkabladze, A., Trzcinski, A., Tytgat, M., Urciuoli, G. M., van der Nat, P. B., van der Steenhoven, G., van de Vyver, R., Veretennikov, D., Vetterli, M. C., Vikhrov, V., Bernreuther, S., Vincter, M. G., Visser, J., Vogt, M., Volmer, J., Weiskopf, C., Wendland, J., Wilbert, J., Wise, T., Yen, S., Yoneyama, S., Bianchi, N., Zihlmann, B., Zohrabian, H., Zupranski, P., HERMES Collaboration, Blok, H. P., Bottcher, H., Akopov, Z., Borissov, A., Bouwhuis, M., Brack, J., Brull, A., Brunn, I., Capitani, G. P., Chiang, H. C., Ciullo, G., Contalbrigo, M., Court, G. R., Amarian, M., Dalpiaz, P. F., De Leo, R., De Nardo, L., De Sanctis, E., Devitsin, E., Di Nezza, P., Duren, M., Ehrenfried, M., Elalaoui-Moulay, A., Elbakian, G., Ammosov, V. V., Ellinghaus, F., Elschenbroich, U., Ely, J., Fabbri, R., Fantoni, A., Fechtchenko, A., Felawka, L., Fox, B., Franz, J., Frullani, S., Andrus, A., Garber, Y., Gapienko, G., Gapienko, V., Garibaldi, F., Garutti, E., Gaskell, D., Gavrilov, G., Gharibyan, V., Graw, G., Grebeniouk, O., Aschenauer, E. C., Greeniaus, L. G., Haeberli, W., Hafidi, K., Hartig, M., Hasch, D., Heesbeen, D., Henoch, M., Hertenberger, R., Hesselink, W. H. A., Hillenbrand, A., Augustyniak, W., Holler, Y., Hommez, B., Iarygin, G., Izotov, A., Jackson, H. E., Jgoun, A., Kaiser, R., Kinney, E., Kisselev, A., Konigsmann, K., Avakian, R., Kolster, H., Kopytin, M., Korotkov, V., Kozlov, V., Krauss, B., Krivokhijine, V. G., Lagamba, L., Lapikas, L., Laziev, A., Lenisa, P., Avetissian, A., Liebing, P., Lindemann, T., Lipka, K., Lorenzon, W., Makins, N. C. R., Marukyan, H., Masoli, F., Menden, F., Mexner, V., and Meyners, N.

Subjects
+Lambda+positron+anything%22">positron nucleon --> Lambda positron anything, longitudinal [polarized target], transverse [polarization], momentum dependence, HERMES, transverse momentum dependence, deep inelastic scattering [positron nucleon], polarized target: longitudinal, polarization: transverse, ddc:530, Nuclear Experiment, Antilambda: polarization, longitudinal [polarized beam], photoproduction [Lambda], 27.6 GeV, High Energy Physics::Phenomenology, Lambda: polarization, Lambda: photoproduction, DESY HERA Stor, positron nucleon: deep inelastic scattering, polarized beam: longitudinal, High Energy Physics::Experiment, polarization [Antilambda], polarization [Lambda], experimental results
Abstract

Physical review / D 76(9), 092008 (2007). doi:10.1103/PhysRevD.76.092008, The HERMES experiment has measured the transverse polarization of Lambda and Lambda-bar hyperons produced inclusively in quasireal photoproduction at a positron beam energy of 27.6 GeV. The transverse polarization of the Lambda hyperon is found to be positive while the observed Lambda-bar polarization is compatible with zero. The transverse polarization values averaged over the kinematic acceptance of HERMES are 0.078 +/- 0.006(stat) +/- 0.012(syst) and -0.025 +/- 0.015(stat) +/- 0.018(syst) for Lambda and Lambda-bar hyperons, respectively. The dependences of Lambda and Lambda-bar polarizations on the fraction $\zeta$ of the beam's light-cone momentum carried by the hyperon and on the hyperon's transverse momentum $p_T$ were investigated. The measured Lambda polarization rises linearly with $p_T$ and exhibits a different behavior for low and high values of $\zeta$, which approximately correspond to the backward and forward regions in the center-of-mass frame of the $\gamma^*N$ reaction., Published by Soc., [S.l.]

Published
2007
Full Text
View/download PDF

38. Hadronization in Semi-inclusive deep inelastic scattering on nuclei

Author

Airapetian, A., Akopov, N., Akopov, Z., Aschenauer, E. C., Augustyniak, W., Avakian, R., Avetissian, A., Avetissian, E., Bianchi, N., Blok, H. P., Böttcher, H., Bonomo, C., Borissov, A., Brüll, A., Bryzgalov, V., Capiluppi, M., Capitani, G. P., Cisbani, E., Ciullo, G., Contalbrigo, M., Dalpiaz, P. F., Deconinck, W., De Leo, R., Demey, M., De Nardo, L., De Sanctis, E., Diefenthaler, M., Di Nezza, P., Dreschler, J., Düren, M., Ehrenfried, M., Elbakian, G., Ellinghaus, F., Elschenbroich, U., Fabbri, R., Fantoni, A., Frullani, S., Gabbert, D., Gapienko, G., Gapienko, V., Garibaldi, F., Gavrilov, G., Gharibyan, V., Giordano, F., Gliske, S., Grigoryan, L., Hadjidakis, C., Hartig, M., Hasch, D., Hasegawa, T., Hill, G., Hillenbrand, A., Hoek, M., Hommez, B., Hristova, I., Imazu, Y., Ivanilov, A., Jackson, H. E., Kaiser, R., Keri, T., Kinney, E., Kisselev, A., Kopytin, M., Korotkov, V., Kravchenko, P., Lagamba, L., Lamb, R., Lapikás, L., Lehmann, I., Lenisa, P., Liebing, P., Linden-Levy, L. A., Lorenzon, W., Lu, S., Lu, X., Maiheu, B., Makins, N. C. R., Marianski, B., Marukyan, H., Mexner, V., Miller, C. A., Miyachi, Y., Muccifora, V., Murray, M., Mussgiller, A., Nappi, E., Naryshkin, Y., Nass, A., Negodaev, M., Nowak, W.-D., Pappalardo, L. L., Perez-Benito, R., Pickert, N., Raithel, M., Reggiani, D., Reimer, P. E., Reischl, A., Reolon, A. R., Riedl, C., Rith, K., Rock, S. E., Rosner, G., Rostomyan, A., Rubacek, L., Rubin, J., Ryckbosch, D., Salomatin, Y., Schäfer, A., Schnell, G., Seitz, B., Shearer, C., Shibata, T.-A., Shutov, V., Stancari, M., Statera, M., Steijger, J. J. M., Stenzel, H., Stewart, J., Stinzing, F., Streit, J., Taroian, S., Tchuiko, B., Trzcinski, A., Tytgat, M., Vandenbroucke, A., Van Der Nat, P. B., Van Der Steenhoven, G., Van Haarlem, Y., Van Hulse, C., Varanda, M., Veretennikov, D., Vikhrov, V., Vilardi, I., Vogel, C., Wang, S., Yaschenko, S., Ye, Y., Ye, Z., Yen, S., Yu, W., Zeiler, D., Zihlmann, B., and Zupranski, P.

Subjects
ddc:530
Abstract

Nuclear physics / B 780(1-2), 1 (2007). doi:10.1016/j.nuclphysb.2007.06.004, Published by North-Holland Publ. Co., Amsterdam

Published
2007
Full Text
View/download PDF

39. Measurement of the tensor structure function b1 of the deuteron

Author

M. Vogt, H. Ohsuga, G. Gapienko, M. C. Simani, A. Rostomyan, A. R. Reolon, A. Avetissian, A. Tkabladze, B. D. Fox, G. Schnell, P. E. Reimer, M. Henoch, K. Oganessyan, Hidekazu Tanaka, H. E. Jackson, V. G. Krivokhijine, Gharibyan, T. A. Shibata, R.O. Avakian, E. Devitsin, W. Augustyniak, Erika Garutti, M. Stancari, U. Stosslein, L. Lagamba, Z. Akopov, J. Seele, S. Bernreuther, Shutov, Korotkov, A. Brull, B. Seitz, B. Hommez, J. Wilbert, Arne Vandenbroucke, Riccardo Fabbri, Di Nezza P, Muccifora, Michael Tytgat, M. Demey, Gapienko, I. M. Gregor, Alessandra Fantoni, M. Hoek, Y. Holler, S. Taroian, G. Graw, A. Andrus, W.-D. Nowak, Klaus Rith, D. Heesbeen, Mexner, G. Iarygin, B. Tchuiko, M. Kopytin, M. Negodaev, A. Nass, P. Bailey, U. Elschenbroich, H. Marukyan, A. Airapetian, A. Kisselev, L. Felawka, M. Amarian, A. Borissov, De Leo R, G. P. Capitani, M. Bouwhuis, L. G. Greeniaus, F. Stinzing, K. Hafidi, A. Laziev, H. Böttcher, B. Maiheu, C. Weiskopf, D. Reggiani, A. Jgoun, I.A. Savin, A. Hillenbrand, A. Fechtchenko, Y. X. Ye, P. Zupranski, P. Lenisa, A. Trzcinski, J. Dreschler, A. Elalaoui-Moulay, Frank Ellinghaus, B. Marianski, J. Volmer, A. Ivanilov, P. F. Dalpiaz, E. R. Kinney, N. Meyners, P. Tait, G. Rosner, V. V. Ammosov, F. Garibaldi, K. P. Schüler, De Sanctis E, K. Garrow, Y. Salomatin, H. P. Blok, E. Avetissian, B. Zihlmann, D. Balin, Nicola Bianchi, Y. Naryshkin, O. Mikloukho, Ralf Hertenberger, Wolfgang Lorenzon, J. G. Rubin, Hasko Stenzel, A. Reischl, B. Q. Ma, H. C. Chiang, M. Ehrenfried, G. Ciullo, Christian Schill, Bryzgalov, Houbing Lu, Eugenio Nappi, S. Potashov, L. Rubacek, D. H. Potterveld, Y. J. Mao, R. Seidl, M. Contalbrigo, Manuella Vincter, Martin Raithel, E. C. Aschenauer, De Nardo L, van der Steenhoven G, S. Belostotski, Kozlov, M. Hartig, I. Sanjiev, Naomi C R Makins, J. Stewart, S. Frullani, O. Grebeniouk, C. Riedl, P. Liebing, J. Lu, M. Beckmann, S. Yen, C. A. Miller, Ralf Kaiser, E. Steffens, G. Gavrilov, Vikhrov, Baturin, B. Krauss, L. A. Linden-Levy, N. Pickert, Dirk Ryckbosch, van der Nat Pb, S. Lu, M. Statera, Adel Terkulov, Andrey V. Izotov, D. Gaskell, L. Lapikás, Jeffrey Brack, Katerina Lipka, C. Vogel, G. Elbakian, J. J. M. Steijger, Michael Düren, Y. Miyachi, J. Wendland, D. Hasch, K. Sinram, Zhenyu Ye, C. Shearer, T. Chen, A. Nagaitsev, Michel Vetterli, N. Akopov, F. Masoli, Rezo Shanidze, Andreas Schäfer, W.H.A. Hesselink, A. Borysenko, (Astro)-Particles Physics, and Photo Conversion Materials

Subjects
HERMES experiment, Particle physics, media_common.quotation_subject, FOS: Physical sciences, General Physics and Astronomy, Spin structure, Inelastic scattering, Asymmetry, High Energy Physics - Experiment, 14.65.−q, Nuclear physics, High Energy Physics - Experiment (hep-ex), 13.88.+e, SDG 7 - Affordable and Clean Energy, Nuclear Experiment, media_common, Physics, 13.60.−r, 14.20.Dh, Scattering, Momentum transfer, HERA, Deep inelastic scattering, High Energy Physics::Experiment
Abstract

The \Hermes experiment has investigated the tensor spin structure of the deuteron using the 27.6 GeV/c positron beam of \Hera. The use of a tensor polarized deuteron gas target with only a negligible residual vector polarization enabled the first measurement of the tensor asymmetry $\At$ and the tensor structure function $\bd$ for average values of the Bj��rken variable $0.01<< x>

Published
2005
Full Text
View/download PDF

40. Search for an exotic S =-2, Q =-2 baryon resonance at a mass near 1862 MeV in quasireal photoproduction

Author

Airapetian, A, Akopov, N, Akopov, Z, Amarian, M, Andrus, A, Aschenauer, Ec, Augustyniak, W, Avakian, R, Avetissian, A, Avetissian, E, Bailey, P, Balin, D, Beckmann, M, Belostotski, S, Bianchi, N, Blok, Hp, Bottcher, H, Borissov, A, Borysenko, A, Bouwhuis, M, Brull, A, Bryzgalov, V, Capiluppi, Marco, Capitani, Gp, Chen, T, Ciullo, Giuseppe, Contalbrigo, Marco, Ferretti, Paola, Deconinck, W, DE LEO, R, Demey, M, DE NARDO, L, DE SANCTIS, E, Devitsin, E, Diefenthaler, M, DI NEZZA, P, Drechsler, J, Duren, M, Ehrenfried, M, ELALAOUI MOULAY, A, Elbakian, G, Ellinghaus, F, Elschenbroich, U, Fabbri, R, Fantoni, A, Felawka, L, Frullani, S, Funel, A, Gapienko, G, Gapienko, V, Garibaldi, F, Garrow, K, Gavrilov, G, Gharibyan, V, Giordano, Francesca, Grebeniouk, O, Gregor, Im, Hadjidakis, C, Hafidi, K, Hartig, M, Hasch, D, Hesselink, Wha, Hillenbrand, A, Hoek, M, Holler, Y, Hommez, B, Hristova, I, Iarygin, G, Ivanilov, A, Izotov, A, Jackson, He, Jgoun, A, Kaiser, R, Keri, T, Kinney, E, Kisselev, A, Kobayashi, T, Kopytin, M, Korotkov, V, Kozlov, V, Krauss, B, Krivokhijine, Vg, Lagamba, L, Lapikas, L, Laziev, A, Lenisa, Paolo, Liebing, P, LINDEN LEVY LA, Lorenzon, W, Lu, H, Lu, J, Lu, S, Ma, Bq, Maiheu, B, Makins, Ncr, Mao, Y, Marianski, B, Marukyan, H, Masoli, Francesco Antonio, Mexner, V, Meyners, N, Michler, T, Mikloukho, O, Miller, Ca, Miyachi, Y, Muccifora, V, Murray, M, Nagaitsev, A, Nappi, E, Naryshkin, Y, Negodaev, M, Nowak, Wd, Oganessyan, K, Ohsuga, H, Osborne, A, Pickert, N, Potterveld, Dh, Raithel, M, Reggiani, D, Reimer, Pe, Reischl, A, Reolon, Ar, Riedl, C, Rith, K, Rosner, G, Rostomyan, A, Rubacek, L, Rubin, J, Ryckbosch, D, Salomatin, Y, Sanjiev, I, Savin, I, Schafer, A, Schnell, G, Schuler, Kp, Seele, J, Seidl, R, Seitz, B, Shearer, C, Shibata, Ta, Shutov, V, Sinram, K, Sommer, W, Stancari, Michelle Dawn, Statera, Marco, Steffens, E, Steijger, Jjm, Stenzel, H, Stewart, J, Stinzing, F, Tait, P, Tanaka, H, Taroian, S, Tchuiko, B, Terkulov, A, Trzcinski, A, Tytgat, M, Vandenbroucke, A, VAN DER NAT PB, VAN DER STEENHOVEN, G, VAN HAARLEM, Y, Vikhrov, V, Vincter, Mg, Vogel, C, Volmer, J, Wang, S, Wendland, J, Ye, Y, Ye, Z, Yen, S, Zihlmann, B, and Zupranski, P.

Subjects
14.20.–c, 12.39.Mk, 13.60.–r, 13.60.Rj, NO
Published
2005

41. Search for an exotic S = -2, Q = -2 baryon resonance at a mass near 1862-MeV in quasi-real photoproduction

Author

Airapetian, A., Akopov, N., Bailey, P., Meyners, N., Michler, T., Mikloukho, O., Miller, C. A., Miyachi, Y., Muccifora, V., Murray, M., Nagaitsev, A., Nappi, E., Naryshkin, Y., Balin, D., Negodaev, M., Nowak, W.-D., Oganessyan, K., Ohsuga, H., Osborne, A., Pickert, N., Potterveld, D. H., Raithel, M., Reggiani, D., Reimer, P. E., Beckmann, M., Reischl, A., Reolon, A. R., Riedl, C., Rith, K., Rosner, G., Rostomyan, A., Rubacek, L., Rubin, J., Ryckbosch, D., Salomatin, Y., Belostotski, S., Sanjiev, I., Savin, I., Schafer, A., Schnell, G., Schuler, K. P., Seele, J., Seidl, R., Seitz, B., Shearer, C., Shibata, T.-A., Bianchi, N., Shutov, V., Sinram, K., Sommer, W., Stancari, M., Statera, M., Steffens, E., Steijger, J. J. M., Stenzel, H., Stewart, J., Stinzing, F., Blok, H. P., Tait, P., Tanaka, H., Taroian, S., Tchuiko, B., Terkulov, A., Trzcinski, A., Tytgat, M., Vandenbroucke, A., van der Nat, P. B., van der Steenhoven, G., Bottcher, H., van Haarlem, Y., Vikhrov, V., Vincter, M. G., Vogel, C., Volmer, J., Wang, S., Wendland, J., Ye, Y., Ye, Z., Yen, S., Borissov, A., Zihlmann, B., Zupranski, P., HERMES Collaboration, Borysenko, A., Bouwhuis, M., Akopov, Z., Brull, A., Bryzgalov, V., Capiluppi, M., Capitani, G. P., Chen, T., Ciullo, G., Contalbrigo, M., Dalpiaz, P. F., Deconinck, W., De Leo, R., Amarian, M., Demey, M., De Nardo, L., De Sanctis, E., Devitsin, E., Diefenthaler, M., Di Nezza, P., Drechsler, J., Duren, M., Ehrenfried, M., Elalaoui-Moulay, A., Andrus, A., Elbakian, G., Ellinghaus, F., Elschenbroich, U., Fabbri, R., Fantoni, A., Felawka, L., Frullani, S., Funel, A., Gapienko, G., Gapienko, V., Aschenauer, E. C., Garibaldi, F., Garrow, K., Gavrilov, G., Gharibyan, V., Giordano, F., Grebeniouk, O., Gregor, I. M., Hadjidakis, C., Hafidi, K., Hartig, M., Augustyniak, W., Hasch, D., Hesselink, W. H. A., Hillenbrand, A., Hoek, M., Holler, Y., Hommez, B., Hristova, I., Iarygin, G., Ivanilov, A., Izotov, A., Avakian, R., Jackson, H. E., Jgoun, A., Kaiser, R., Keri, T., Kinney, E., Kisselev, A., Kobayashi, T., Kopytin, M., Korotkov, V., Kozlov, V., Avetissian, A., Krauss, B., Krivokhijine, V. G., Lagamba, L., Lapikas, L., Laziev, A., Lenisa, P., Liebing, P., Linden-Levy, L. A., Lorenzon, W., Lu, H., Avetissian, E., Lu, J., Lu, S., Ma, B.-Q., Maiheu, B., Makins, N. C. R., Mao, Y., Marianski, B., Marukyan, H., Masoli, F., and Mexner, V.

Subjects
inclusive reaction [positron deuteron], (p 3pi-) [mass spectrum], branching ratio [channel cross section], DESY HERA Stor, 27.5 GeV, search for [pentaquark], ddc:530, exotic [baryon resonance], hadroproduction [Xi(1530)], (p pi+ 2pi-) [mass spectrum], Xi(1862) [postulated particle], upper limit
Abstract

A search for an exotic baryon resonance with $S=-2, Q=-2$ has been performed in quasi-real photoproduction on a deuterium target through the decay channel $\Xi^- \pi^- \to \Lambda \pi^- \pi^- \to p \pi^- \pi^- \pi^-$. No evidence for a previously reported $\Xi^{--}(1860)$ resonance is found in the $\Xi^- \pi^-$invariant mass spectrum. An upper limit for the photoproduction cross section of 2.1 nb is found at the 90% confidence level. The photoproduction cross section for the $\Xi^{0}(1530)$ is found to be between 9 and 24 nb.

Published
2005
Full Text
View/download PDF

42. First measurement of the tensor structure function $b_1$ of the deuteron

Author

Airapetian, A., Akopov, N., Avetissian, E., Makins, N. C. R., Mao, Y., Marianski, B., Marukyan, H., Masoli, F., Mexner, V., Meyners, N., Mikloukho, O., Miller, C. A., Miyachi, Y., Bailey, P., Muccifora, V., Nagaitsev, A., Nappi, E., Naryshkin, Y., Nass, A., Negodaev, M., Nowak, W.-D., Oganessyan, K., Ohsuga, H., Pickert, N., Balin, D., Potashov, S., Potterveld, D. H., Raithel, M., Reggiani, D., Reimer, P. E., Reischl, A., Reolon, A. R., Riedl, C., Rith, K., Rosner, G., Baturin, V., Rostomyan, A., Rubacek, L., Rubin, J., Ryckbosch, D., Salomatin, Y., Sanjiev, I., Savin, I., Schafer, A., Schill, C., Schnell, G., Beckmann, M., Schuler, K. P., Seele, J., Seidl, R., Seitz, B., Shanidze, R., Shearer, C., Shibata, T.-A., Shutov, V., Simani, M. C., Sinram, K., Belostotski, S., Stancari, M., Statera, M., Steffens, E., Steijger, J. J. M., Stenzel, H., Stewart, J., Stinzing, F., Stosslein, U., Tait, P., Tanaka, H., Bernreuther, S., Taroian, S., Tchuiko, B., Terkulov, A., Tkabladze, A., Trzcinski, A., Tytgat, M., Vandenbroucke, A., van der Nat, P. B., van der Steenhoven, G., Vetterli, M. C., Bianchi, N., Vikhrov, V., Vincter, M. G., Vogel, C., Vogt, M., Volmer, J., Weiskopf, C., Wendland, J., Wilbert, J., Ye, Y., Ye, Z., Blok, H. P., Yen, S., Zihlmann, B., Zupranski, P., HERMES Collaboration, Bottcher, H., Akopov, Z., Borissov, A., Borysenko, A., Bouwhuis, M., Brack, J., Brull, A., Bryzgalov, V., Capitani, G. P., Chen, T., Chiang, H. C., Ciullo, G., Amarian, M., Contalbrigo, M., Dalpiaz, P. F., Leo, R. De, Demey, M., Nardo, L. De, Sanctis, E. De, Devitsin, E., Nezza, P. Di, Dreschler, J., Duren, M., Ammosov, V. V., Ehrenfried, M., Elalaoui-Moulay, A., Elbakian, G., Ellinghaus, F., Elschenbroich, U., Fabbri, R., Fantoni, A., Fechtchenko, A., Felawka, L., Fox, B., Andrus, A., Frullani, S., Gapienko, G., Gapienko, V., Garibaldi, F., Garrow, K., Garutti, E., Gaskell, D., Gavrilov, G., Gharibyan, V., Graw, G., Aschenauer, E. C., Grebeniouk, O., Greeniaus, L. G., Gregor, I. M., Hafidi, K., Hartig, M., Hasch, D., Heesbeen, D., Henoch, M., Hertenberger, R., Hesselink, W. H. A., Augustyniak, W., Hillenbrand, A., Hoek, M., Holler, Y., Hommez, B., Iarygin, G., Ivanilov, A., Izotov, A., Jackson, H. E., Jgoun, A., Kaiser, R., Avakian, R., Kinney, E., Kisselev, A., Kopytin, M., Korotkov, V., Kozlov, V., Krauss, B., Krivokhijine, V. G., Lagamba, L., Lapikas, L., Laziev, A., Avetissian, A., Lenisa, P., Liebing, P., Linden-Levy, L. A., Lipka, K., Lorenzon, W., Lu, H., Lu, J., Lu, S., Ma, B.-Q., and Maiheu, B.

Subjects
DESY HERA Stor, 27.6 GeV/c, structure function [deuteron], deep inelastic scattering [positron deuteron], asymmetry [polarization], ddc:550, tensor [polarization], HERMES, moment [structure function], polarized target [deuteron], momentum transfer dependence, x-dependence, experimental results
Published
2005
Full Text
View/download PDF

43. Quark helicity distributions in the nucleon for up, down, and strange quarks from semi-inclusive deep-inelastic scattering

Author

Airapetian, A., Akopov, N., Avetissian, E., Marianski, B., Marukyan, H., Masoli, F., Mexner, V., Meyners, N., Mikloukho, O., Miller, C. A., Miyachi, Y., Muccifora, V., Nagaitsev, A., Bailey, P., Nappi, E., Naryshkin, Y., Nass, A., Negodaev, M., Nowak, W. D., Oganessyan, K., Ohsuga, H., Pickert, N., Potashov, S., Potterveld, D. H., Baturin, V., Raithel, M., Reggiani, D., Reimer, P. E., Reischl, A., Reolon, A. R., Riedl, C., Rith, K., Rosner, G., Rostomyan, A., Rubacek, L., Baumgarten, C., Rubin, J., Ryckbosch, D., Salomatin, Y., Sanjiev, I., Savin, I., Scarlett, C., Schafer, A., Schill, C., Schnell, G., Schuler, K. P., Beckmann, M., Schwind, A., Seele, J., Seidl, R., Seitz, B., Shanidze, R., Shearer, C., Shibata, T. A., Shutov, V., Simani, M. C., Sinram, K., Belostotski, S., Stancari, M., Statera, M., Steffens, E., Steijger, J. J. M., Stenzel, H., Stewart, J., Stosslein, U., Tait, P., Tanaka, H., Taroian, S., Bernreuther, S., Tchuiko, B., Terkulov, A., Tkabladze, A., Trzcinski, A., Tytgat, M., Vandenbroucke, A., van der Nat, P., van der Steenhoven, G., Vetterli, M. C., Vikhrov, V., Bianchi, N., Vincter, M. G., Vogel, C., Vogt, M., Volmer, J., Weiskopf, C., Wendland, J., Wilbert, J., Ybeles Smit, G., Yen, S., Zihlmann, B., Blok, H. P., Zohrabian, H., Zupranski, P., HERMES Collaboration, Blumlein, J., Akopov, Z., Bottcher, H., Borissov, A., Borysenko, A., Bouwhuis, M., Brack, J., Brull, A., Bryzgalov, V., Capitani, G. P., Chiang, H. C., Ciullo, G., Amarian, M., Contalbrigo, M., Dalpiaz, P. F., De Leo, R., De Nardo, L., De Sanctis, E., Devitsin, E., Di Nezza, P., Duren, M., Ehrenfried, M., Elalaoui-Moulay, A., Ammosov, V. V., Elbakian, G., Ellinghaus, F., Elschenbroich, U., Ely, J., Fabbri, R., Fantoni, A., Fechtchenko, A., Felawka, L., Fox, B., Franz, J., Andrus, A., Frullani, S., Gapienko, G., Gapienko, V., Garibaldi, F., Garrow, K., Garutti, E., Gaskell, D., Gavrilov, G., Gharibyan, V., Graw, G., Aschenauer, E. C., Grebeniouk, O., Greeniaus, L. G., Gregor, I. M., Hafidi, K., Hartig, M., Hasch, D., Heesbeen, D., Henoch, M., Hertenberger, R., Hesselink, W. H. A., Augustyniak, W., Hillenbrand, A., Hoek, M., Holler, Y., Hommez, B., Iarygin, G., Ivanilov, A., Izotov, A., Jackson, H. E., Jgoun, A., Kaiser, R., Avakian, R., Kinney, E., Kisselev, A., Konigsmann, K., Kopytin, M., Korotkov, V., Kozlov, V., Krauss, B., Krivokhijine, V. G., Lagamba, L., Lapikas, Louk, Avetissian, A., Laziev, A., Lenisa, P., Liebing, P., Lindemann, T., Linden-Levy, L. A., Lipka, K., Lorenzon, W., Lu, J., Maiheu, B., Makins, N. C. R., (Astro)-Particles Physics, Photo Conversion Materials, and Student Lab and Education

Subjects
Quark, internal [polarized target], Nuclear and High Energy Physics, Particle physics, Strange quark, sea [quark], High Energy Physics::Lattice, deep inelastic scattering [positron deuteron], Hadron, Nuclear Theory, dependence [flavor], Down quark, FOS: Physical sciences, HERMES, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), density [helicity], 27.5 GeV, Pion, 0103 physical sciences, ddc:530, SDG 14 - Life Below Water, deep inelastic scattering [positron p], 010306 general physics, electroproduction [pi], Physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, polarization [quark], Deep inelastic scattering, moment, Baryon, DESY HERA Stor, electroproduction [K], Up quark, valence [quark], polarization [cross section], High Energy Physics::Experiment, polarized beam [positron], asymmetry [spin], experimental results
Abstract

Polarized deep-inelastic scattering data on longitudinally polarized hydrogen and deuterium targets have been used to determine double-spin asymmetries of cross sections. Inclusive and semi-inclusive asymmetries for the production of positive and negative pions from hydrogen were obtained in a reanalysis of previously published data. Inclusive and semi-inclusive asymmetries for the production of negative and positive pions and kaons were measured on a polarized deuterium target. The separate helicity densities for the up and down quarks and the anti-up, anti-down, and strange sea quarks were computed from these asymmetries in a "leading order" QCD analysis. The polarization of the up-quark is positive and that of the down-quark is negative. All extracted sea quark polarizations are consistent with zero, and the light quark sea helicity densities are flavor symmetric within the experimental uncertainties. First and second moments of the extracted quark helicity densities in the measured range are consistent with fits of inclusive data. © 2005 The American Physical Society.

Published
2005
Full Text
View/download PDF

44. Comparison between the transverse responses of the reactions C-12(e, e(') p)B-11 and C-12(gamma, p)B-11

Author

Morrow, SA, Arneil, J, Aschenauer, EC, van Batenburg, MF, Blok, HP, Boersma, DJ, Branford, D, Davinson, T, DeMeyer, G, Ducret, JE, Hesselink, WHA, Groep, D, Hicks, K, Ireland, DG, Kalantar-Nayestanaki, N, Lapikas, L, Liang, M, Mackenzie, J, Marchand, C, Medaglia, R, Ryckebusch, J, van Sambeek, M, Starink, R, van der Steenhoven, G, van Uden, MA, de Vries, H, and Research unit Nuclear & Hadron Physics

Subjects
MESON-EXCHANGE CURRENTS, ELECTRON-SCATTERING, 2-STEP PROCESSES, = 1 QUASIDEUTERON, RELATIVISTIC CALCULATIONS, GAMMA,P REACTIONS, PHOTONUCLEAR REACTIONS, DIRECT KNOCKOUT MECHANISM, HIGH-RESOLUTION, REACTION C-12(E,E'P)B-11
Abstract

A study of the reaction C-12(e,e'p)B-11 in parallel kinematics has been made for the missing-momentum region 250

Published
2005

45. Single-spin asymmetries in semi-inclusive deep-inelastic scattering on a transversely polarized hydrogen target

Author

Airapetian, A., Akopov, N., Bacchetta, A., Mikloukho, O., Miller, C. A., Miyachi, Y., Muccifora, V., Nagaitsev, A., Nappi, E., Naryshkin, Y., Nass, A., Negodaev, M., Nowak, W. D., Bailey, P., Oganessyan, K., Ohsuga, H., Osborne, A., Pickert, N., Potterveld, D. H., Raithel, M., Reggiani, D., Reimer, P. E., Reischl, A., Reolon, A. R., Balin, D., Riedl, C., Rith, K., Rosner, G., Rostomyan, A., Rubacek, L., Rubin, J., Ryckbosch, D., Salomatin, Y., Sanjiev, I., Savin, Igor A., Beckmann, M., Schafer, A., Schill, C., Schnell, G., Schuler, K. P., Seele, J., Seidl, R., Seitz, B., Shanidze, R., Shearer, C., Shibata, T. A., Belostotski, S., Shutov, V., Sinram, K., Sommer, W., Stancari, M., Statera, M., Steffens, E., Steijger, J. J. M., Stenzel, H., Stewart, J., Stinzing, F., Bianchi, N., Tait, P., Tanaka, H., Taroian, S., Tchuiko, B., Terkulov, A., Trzcinski, A., Tytgat, M., Vandenbroucke, A., van der Nat, P. B., van der Steenhoven, G., Blok, H. P., van Haarlem, Y., Vetterli, M. C., Vikhrov, V., Vincter, M. G., Vogel, C., Volmer, J., Wang, S., Wendland, J., Wilbert, J., Ybeles Smit, G., Bottcher, H., Ye, Y., Ye, Z., Yen, S., Zihlmann, B., Zupranski, P., HERMES Collaboration, Borissov, A., Borysenko, A., Akopov, Z., Bouwhuis, M., Brull, A., Bryzgalov, V., Capitani, G. P., Cappiluppi, M., Chen, T., Ciullo, G., Contalbrigo, M., Dalpiaz, P. F., De Leo, R., Amarian, M., Demey, M., De Nardo, L., De Sanctis, E., Devitsin, E., Di Nezza, P., Duren, M., Ehrenfried, M., Elalaoui-Moulay, A., Elbakian, G., Ellinghaus, F., Andrus, A., Elschenbroich, U., Fabbri, R., Fantoni, A., Fechtchenko, A., Felawka, L., Frullani, S., Gapienko, G., Gapienko, V., Garibaldi, F., Garrow, K., Aschenauer, E. C., Gavrilov, G., Gharibyan, V., Grebeniouk, O., Gregor, I. M., Hadjidakis, C., Hafidi, K., Hartig, M., Hasch, D., Henoch, M., Hesselink, W. H. A., Augustyniak, W., Hillenbrand, A., Hoek, M., Holler, Y., Hommez, B., Hristova, I., Iarygin, G., Ilyichev, A., Ivanilov, A., Izotov, A., Jackson, H. E., Avakian, R., Jgoun, A., Kaiser, R., Kinney, E., Kisselev, A., Kobayashi, T., Kopytin, M., Korotkov, V., Kozlov, V., Krauss, B., Krivokhijine, V. G., Avetissian, A., Lagamba, L., Lapikas, Louk, Laziev, A., Lenisa, P., Liebing, P., Linden-Levy, L. A., Lorenzon, W., Lu, H., Lu, J., Lu, S., Avetissian, E., Ma, B. Q., Maiheu, B., Makins, N. C. R., Mao, Y., Marianski, B., Marukyan, H., Masoli, F., Mexner, V., Meyners, N., Michler, T., (Astro)-Particles Physics, Photo Conversion Materials, and Student Lab and Education

Subjects
Particle physics, transverse [polarization], Nuclear Theory, FOS: Physical sciences, General Physics and Astronomy, HERMES, 13.60.–r, Inelastic scattering, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), 27.5 GeV, Pion, 13.88.+e, ddc:550, Vector meson, SDG 14 - Life Below Water, deep inelastic scattering [positron p], 14.20.Dh, 14.65.–q, Nuclear Experiment, Physics, Scattering, polarized target [hydrogen], High Energy Physics::Phenomenology, polarization [quark], Deep inelastic scattering, +pi+positron+anything%22">positron p --> pi positron anything, angular dependence, DESY HERA Stor, Distribution function, High Energy Physics::Experiment, transverse momentum [quark], Nucleon, electroproduction [pi+], asymmetry [spin], electroproduction [pi-], Lepton, experimental results
Abstract

Single-spin asymmetries for semi-inclusive electroproduction of charged pions in deep-inelastic scattering of positrons are measured for the first time with transverse target polarization. The asymmetry depends on the azimuthal angles of both the pion ($\ensuremath{\phi}$) and the target spin axis (${\ensuremath{\phi}}_{S}$) about the virtual-photon direction and relative to the lepton scattering plane. The extracted Fourier component $\mathbf{⟨}\mathrm{sin} (\ensuremath{\phi}+{\ensuremath{\phi}}_{S}){\mathbf{⟩}}_{UT}^{\ensuremath{\pi}}$ is a signal of the previously unmeasured quark transversity distribution, in conjunction with the Collins fragmentation function, also unknown. The component $\mathbf{⟨}\mathrm{sin} (\ensuremath{\phi}\ensuremath{-}{\ensuremath{\phi}}_{S}{\mathbf{⟩}}_{UT}^{\ensuremath{\pi}}$ arises from a correlation between the transverse polarization of the target nucleon and the intrinsic transverse momentum of quarks, as represented by the previously unmeasured Sivers distribution function. Evidence for both signals is observed, but the Sivers asymmetry may be affected by exclusive vector meson production.

Published
2005
Full Text
View/download PDF

46. Nuclear polarization of molecular hydrogen recombined on a non-metallic surface

Author

Airapetian, A, Akopov, N, Akopov, Z, Amarian, M, Ammosov, Vv, Andrus, A, Aschenauer, Ec, Augustymak, W, Avakian, R, Avetissian, A, Avetissian, E, Bailey, P, Baturin, V, Baumgarten, C, Beckmann, M, Belostotski, S, Bernreuther, S, Bianchi, N, Blok, Hp, Bottcher, H, Borissov, A, Borysenko, A, Bouwhuis, M, Brack, J, Brull, A, Bryzgalov, V, Capitanilo, Gp, Chiang, Hc, Ciullo, Giuseppe, Contalbrigo, Marco, Court, G, Ferretti, Paola, DE LEO, R, DE NARDO, L, DE SANCTIS, E, Devitsin, E, DI NEZZA, P, Duren, M, Ehrenfried, M, ELALAOUI MOULAY, A, Elbakian, G, Ellinghaus, F, Elschenbroich, U, Ely, J, Fabbri, Riccardo, Fantoni, A, Fechtchenko, A, Felawka, L, Fox, B, Franz, J, Frullani, S, Gapienko, G, Gapienko, V, Garibaldi, F, Garrow, K, Garutti, E, Gaskell, D, Gavrilov, G, Gharibyan, V, Graw, G, Grebeniouk, O, Greeniaus, Lg, Gregor, Im, Haeberli, W, Hafidi, K, Hartig, M, Hasch, D, Heesbeen, D, Henoch, M, Hertenberger, R, Hesselink, Wha, Hillenbrand, A, Hoek, M, Holler, Y, Hommez, B, Iarygin, G, Ivanilov, A, Izotov, A, Jackson, He, Jgoun, A, Kaiser, R, Kinney, E, Kisselev, A, Kolster, H, Konigsmann, K, Kopytin, M, Korotkov, V, Kozlov, V, Krauss, B, Krivokhijine, Vg, Lagamba, L, Lapikas, L, Laziev, A, Lenisa, Paolo, Liebing, P, LINDEN LEVY LA, Lipka, K, Lorenzon, W, Lu, J, Maiheu, B, Makins, Ncr, Marianski, B, Marukyan, H, Masoli, Francesco Antonio, Mexner, V, Meyners, N, Mikloukho, O, Miller, Ca, Miyachi, Y, Muccifora, V, Nagaitsev, A, Nappi, E, Naryshkin, Y, Nass, A, Negodaev, M, Nowak, Wd, Oganessyan, K, Ohsuga, H, Pickert, N, Potashov, S, Potterveld, Dh, Raithel, M, Reggiani, Davide, Reimer, Pe, Reischl, A, Reolon, Ar, Riedl, C, Rith, K, Rosner, G, Rostomyan, A, Rubacek, L, Rubin, J, Ryckbosch, D, Salomatin, Y, Sanjiev, I, Savin, I, Scarlett, C, Schill, C, Schnell, G, Schuler, Kp, Schwind, A, Seele, J, Seidl, R, Seitz, B, Shanidze, R, Shearer, C, Shibata, Ta, Shutov, V, Simani, Mc, Sinram, K, Stancari, Michelle Dawn, Statera, Marco, Steffens, E, Steijger, Jjm, Stenzel, H, Stewart, J, Stosslein, U, Tait, P, Tanaka, H, Taroian, S, Tchuiko, B, Terkulov, A, Tkabladze, A, Trzcinski, A, Tytgat, M, Vandenbroucke, A, VAN DER NAT, P, VAN DER STEENHOVEN, G, Vetterli, Mc, Vikhrov, V, Vincter, Mg, Vogel, C, Vogt, M, (Astro)-Particles Physics, Photo Conversion Materials, Student Lab and Education, and Airapetian, A

Subjects
Silicon, Atomic Physics (physics.atom-ph), media_common.quotation_subject, Nuclear Theory, chemistry.chemical_element, FOS: Physical sciences, Asymmetry, Physics - Atomic Physics, Metal, Physics - Chemical Physics, 29.25.Pj - Polarized and other targets, 34. - Atomic and molecular collision processes and interactions, 39.10.+j - Atomic and molecular beam sources and techniques, 13.88.+e - Polarization in interactions and scattering, Molecule, Nuclear Experiment, media_common, chemistry.chemical_classification, Physics, Chemical Physics (physics.chem-ph), Scattering, Polymer, Polarization (waves), Atomic and Molecular Physics, and Optics, chemistry, visual_art, visual_art.visual_art_medium, Atomic physics, Recombination
Abstract

The nuclear polarization of $\mathrm{H}_2$ molecules formed by recombination of nuclear polarized H atoms on the surface of a storage cell initially coated with a silicon-based polymer has been measured by using the longitudinal double-spin asymmetry in deep-inelastic positron-proton scattering. The molecules are found to have a substantial nuclear polarization, which is evidence that initially polarized atoms retain their nuclear polarization when absorbed on this type of surface

Published
2004
Full Text
View/download PDF

47. Hard exclusive electroproduction of π+π− pairs

Author

Airapetian, A, Akopov, N, Akopov, Z, Amarian, M, Ammosov, Vv, Andrus, A, Aschenauer, Ec, Augustyniak, W, Avakian, R, Avetissian, A, Avetissian, E, Bailey, P, Balin, D, Baturin, V, Beckmann, M, Belostotski, S, Bernreuther, S, Bianchi, N, Blok, Hp, Bottcher, H, Borissov, A, Borysenko, A, Bouwhuis, M, Brack, J, Brull, A, Bryzgalov, V, Capitani, Gp, Chen, T, Ciullo, Giuseppe, Contalbrigo, Marco, Ferretti, Paola, DE LEO, R, Demey, M, DE NARDO, L, DE SANCTIS, E, Devitsin, E, DI NEZZA, P, Duren, M, Ehrenfried, M, ELALAOUI MOULAY, A, Elbakian, G, Ellinghaus, F, Elschenbroich, U, Fabbri, Riccardo, Fantoni, A, Fechtchenko, A, Felawka, L, Frullani, S, Gapienko, G, Gapienko, V, Garibaldi, F, Garrow, K, Garutti, E, Gavrilov, G, Gharibyan, V, Graw, G, Grebeniouk, O, Greeniaus, Lg, Gregor, Im, Griffioen, Ka, Hafidi, K, Hartig, M, Hasch, D, Heesbeen, D, Henoch, M, Hertenberger, R, Hesselink, Wha, Hillenbrand, A, Hoek, M, Holler, Y, Hommez, B, Iarygin, G, Ivanilov, A, Izotov, A, Jackson, He, Jgoun, A, Kaiser, R, Kinney, E, Kisselev, A, Kopytin, M, Korotkov, V, Kozlov, V, Krauss, B, Krivokhijine, Vg, Lagamba, L, Lapikas, L, Laziev, A, Lenisa, Paolo, Liebing, P, LINDEN LEVY LA, Lipka, K, Lorenzon, W, Lu, H, Lu, J, Lu, S, Ma, Bq, Maiheu, B, Makins, Ncr, Mao, Y, Marianski, B, Marukyan, H, Masoli, Francesco Antonio, Mexner, V, Meyners, N, Mikloukho, O, Miller, Ca, Miyachi, Y, Muccifora, V, Nagaitsev, A, Nappi, E, Naryshkin, Y, Nass, A, Negodaev, M, Nowak, Wd, Oganessyan, K, Ohsuga, H, Osborne, A, Pickert, N, Potashov, S, Potterveld, Dh, Raithel, M, Reggiani, Davide, Reimer, Pe, Reischl, A, Reolon, Ar, Riedl, C, Rith, K, Rosner, G, Rostomyan, A, Rubacek, L, Rubin, J, Ryckbosch, D, Salomatin, Y, Sanjiev, I, Savin, I, Schafer, A, Schill, C, Schnell, G, Schuler, Kp, Seele, J, Seidl, R, Seitz, B, Shanidze, R, Shearer, C, Shibata, Ta, Shutov, V, Sinram, K, Sommer, W, Stancari, Michelle Dawn, Statera, Marco, Steffens, E, Steijger, Jjm, Stenzel, H, Stewart, J, Stinzing, F, Tait, P, Tanaka, H, Taroian, S, Tchuiko, B, Terkulov, A, Tkabladze, A, Trzcinski, A, Tytgat, M, Vandenbroucke, A, VAN DER NAT, P, VAN DER STEENHOVEN, G, VAN HAARLEM, Y, Vetterli, Mc, Vikhrov, V, Vincter, Mg, Vogel, C, Vogt, M, Volmer, J, Weiskopf, C, and W. E. N. D. L. A. N. D. .

Subjects
14.40.Cs, 13.88.+e, 13.60.Le, 25.30.Rw
Published
2004

48. Flavor decomposition of the sea quark helicity distributions in the nucleon from semiinclusive deep inelastic scattering

Author

Airapetian, A., Akopov, N., Avetissian, E., Mexner, V., Meyners, N., Mikloukho, O., Miller, C. A., Miyachi, Y., Muccifora, V., Nagaitsev, A., Nappi, E., Naryshkin, Y., Nass, A., Bailey, P., Negodaev, M., Nowak, W.-D., Oganessyan, K., Ohsuga, H., Orlandi, G., Pickert, N., Potashov, S., Potterveld, D. H., Raithel, M., Reggiani, D., Baturin, V., Reimer, P. E., Reischl, A., Reolon, A. R., Riedl, C., Rith, K., Rosner, G., Rostomyan, A., Rubacek, L., Ryckbosch, D., Salomatin, Y., Baumgarten, C., Sanjiev, I., Savin, I., Scarlett, C., Schafer, A., Schill, C., Schnell, G., Schuler, K. P., Schwind, A., Seele, J., Seidl, R., Beckmann, M., Seitz, B., Shanidze, R., Shearer, C., Shibata, T.-A., Shutov, V., Simani, M. C., Sinram, K., Stancari, M., Statera, M., Steffens, E., Belostotski, S., Steijger, J. J. M., Stewart, J., Stosslein, U., Tait, P., Tanaka, H., Taroian, S., Tchuiko, B., Terkulov, A., Tkabladze, A., Trzcinski, A., Bernreuther, S., Tytgat, M., Vandenbroucke, A., van der Nat, P., van der Steenhoven, G., Vetterli, M. C., Vikhrov, V., Vincter, M. G., Visser, J., Vogel, C., Vogt, M., Bianchi, N., Volmer, J., Weiskopf, C., Wendland, J., Wilbert, J., Ybeles Smit, G., Yen, S., Zihlmann, B., Zohrabian, H., Zupranski, P., HERMES Collaboration, Blok, H. P., Bottcher, H., Akopov, Z., Borissov, A., Bouwhuis, M., Brack, J., Brull, A., Bryzgalov, V., Capitani, G. P., Chiang, H. C., Ciullo, G., Contalbrigo, M., Dalpiaz, P. F., Amarian, M., De Leo, R., De Nardo, L., De Sanctis, E., Devitsin, E., Di Nezza, P., Duren, M., Ehrenfried, M., Elalaoui-Moulay, A., Elbakian, G., Ellinghaus, F., Ammosov, V. V., Elschenbroich, U., Ely, J., Fabbri, R., Fantoni, A., Fechtchenko, A., Felawka, L., Fox, B., Franz, J., Frullani, S., Garber, Y., Andrus, A., Gapienko, G., Gapienko, V., Garibaldi, F., Garrow, K., Garutti, E., Gaskell, D., Gavrilov, G., Gharibyan, V., Graw, G., Grebeniouk, O., Aschenauer, E. C., Greeniaus, L. G., Hafidi, K., Hartig, M., Hasch, D., Heesbeen, D., Henoch, M., Hertenberger, R., Hesselink, W. H. A., Hillenbrand, A., Hoek, M., Augustyniak, W., Holler, Y., Hommez, B., Iarygin, G., Ivanilov, A., Izotov, A., Jackson, H. E., Jgoun, A., Kaiser, R., Kinney, E., Kisselev, A., Avakian, R., Konigsmann, K., Kopytin, M., Korotkov, V., Kozlov, V., Krauss, B., Krivokhijine, V. G., Lagamba, L., Lapikas, L., Laziev, A., Lenisa, P., Avetissian, A., Liebing, P., Lindemann, T., Lipka, K., Lorenzon, W., Lu, J., Maiheu, B., Makins, N. C. R., Marianski, B., Marukyan, H., and Masoli, F.

Subjects
sea [quark], momentum spectrum [quark], High Energy Physics::Lattice, deep inelastic scattering [positron deuteron], Nuclear Theory, HERMES, absorption [photon], x-dependence, inclusive reaction [positron deuteron], helicity [quark], ddc:550, Nuclear Experiment, 27.6 GeV, High Energy Physics::Phenomenology, DESY HERA Stor, electroproduction [K+], electroproduction [K-], flavor [quark], High Energy Physics::Experiment, asymmetry [flavor], polarized beam [positron], polarized target [deuteron], electroproduction [pi+], asymmetry [spin], electroproduction [pi-], experimental results
Abstract

Double-spin asymmetries of semi-inclusive cross sections for the production of identified pions and kaons have been measured in deep-inelastic scattering of polarized positrons on a polarized deuterium target. Five helicity distributions including those for three sea quark flavors were extracted from these data together with re-analyzed previous data for identified pions from a hydrogen target. These distributions are consistent with zero for all three sea flavors. A recently predicted flavor asymmetry in the polarization of the light quark sea appears to be disfavored by the data.

Published
2004
Full Text
View/download PDF

49. Evidence for a narrow |S|=1 baryon state at a mass of 1528 MeV in quasi-real photoproduction

Author

Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Ammosov, V.V., Andrus, A., Aschenauer, E.C., Augustyniak, W., Avakian, R., Avetissian, A., Avetissian, E., Bailey, P., Balin, D., Baturin, V., Beckmann, M., Belostotski, S., Bernreuther, S., Bianchi, N., Blok, H.P., Bottcher, H., Borissov, A., Borysenko, A., Bouwhuis, M., Brack, J., Brull, A., Bryzgalov, V., Capitani, G.P., Chen, T., Chen, X., Chiang, H.C., Ciullo, G., Contalbrigo, M., Dalpiaz, P.F., Deconinck, W., De Leo, R., De Nardo, L., De Sanctis, E., Devitsin, E., Di Nezza, P., Duren, M., Ehrenfried, M., Elalaoui-Moulay, A., Elbakian, G., Ellinghaus, F., Elschenbroich, U., Ely, J., Fabbri, R., Fantoni, A., Fechtchenko, A., Felawka, L., Fox, B., Frullani, S., Gapienko, G., Gapienko, V., Garibaldi, Y., Garrow, K., Garutti, E., Gaskell, D., Gavrilov, G., Gharibyan, V., Graw, G., Grebeniouk, O., Greeniaus, L.G., Gregor, I.M., Hafidi, K., Hartig, M., Hasch, D., Heesbeen, D., Henoch, M., Hertenberger, R., Hesselink, W.H.A., Hillenbrand, A., Hoek, M., Holler, Y., Hommez, B., Iarygin, G., Ivanilov, A., Izotov, A., Jackson, H.E., Jgoun, A., Kaiser, R., Kinney, E., Kisselev, A., Kopytin, M., Korotkov, V., Kozlov, V., Krauss, B., Krivokhijine, V.G., Lagamba, L., Lapikas, L., Laziev, A., Lenisa, P., Liebing, P., Linden-Levy, L.A., Lipka, K., Lorenzon, W., Lu, H., Lu, J., Lu, S., Lu, X., Ma, B.Q., Maiheu, B., Makins, N.C.R., Mao, Y., Marianski, B., Marukyan, H., Masoli, F., Mexner, V., Meyners, N., Mikloukho, O., Miller, C.A., Miyachi, Y., Muccifora, V., Nagaitsev, A., Nappi, E., Naryshkin, Y., Nass, A., Negodaev, M., Nowak, W.D., Oganessyan, K., Ohsuga, H., Pickert, N., Potashov, S., Potterveld, D.H., Raithel, M., Reggiani, D., Reimer, P.E., Reischl, A., Reolon, A.R., Riedl, C., Rith, K., Rosner, G., Rostomyan, A., Rubacek, L., Rubin, J., Ryckbosch, D., Salomatin, Y., Sanjiev, I., Savin, I., Schafer, A., Schill, C., Schnell, G., Schuler, K.P., Seele, J., Seidl, R., Seitz, B., Shanidze, R., Shearer, C., Shibata, T.A., Shutov, V., Simani, M.C., Sinram, K., Stancari, M., Statera, M., Steffens, E., Steijger, J.J.M., Stenzel, H., Stewart, J., Stinzing, F., Stosslein, U., Tait, P., Tanaka, H., Taroian, S., Tchuiko, B., Terklov, A., Tkabladze, A., Trzcinski, A., Tytgat, M., Vandenbroucke, A., van der Nat, P., van der Steenhoven, G., Vetterli, M.C., Vikhrov, V., Vincter, M.G., Vogel, C., Vogt, M., Volmer, J., Weiskopf, C., Wendland, J., Wilbert, J., Smit, G.Y., Ye, Y., Ye, Z., Yen, Z., Yu, W., Zihlmann, B., Zohrabian, H., and Zupranski, P.

Subjects
Nuclear Theory, High Energy Physics::Experiment, Nuclear Experiment, QC
Abstract

Evidence for a narrow baryon state is found in quasi-real photoproduction on a deuterium target through the decay channel pK(S)(0) → ppi(+)pi(-). A peak is observed in the pK(S)(0) invariant mass spectrum at 1528 +/- 2.6(stat) +/- 2.1(syst) MeV. Depending on the background model, the naive statistical significance of the peak is 4-6 standard deviations and its width may be somewhat larger than the experimental resolution of sigma = 4.3-6.2 MeV. This state may be interpreted as the predicted S = +1 exotic Theta(+)(uudd (s) over bar) pentaquark baryon. No signal for an hypothetical Theta(++) baryon was observed in the pK(+) invariant mass distribution. The absence of such a signal indicates that an isotensor Theta is excluded and an isovector Theta is unlikely.

Published
2004

Catalog

Books, media, physical & digital resources
See catalog results