Measurement of parton distributions of strange quarks in the nucleon from charged-kaon production in deep-inelastic scattering on the deuteron
Year: 2008
Type: article
Abstract: The momentum and helicity density distributions of the strange quark sea in the nucleon are obtained in leading order from charged-kaon production in deep-inelastic scattering on the deuteron. The distributions are extracted from spin-averaged K± multiplicities, and from K± and inclusive double-spin asymmetries for scattering of polarized positrons by a polarized deuterium target. The shape of the momentum distribution is softer than that of the average of the u¯ and d¯ quarks. In the region of measurement 0.02 1.0GeV2, the helicity distribution is zero within experimental uncertainties.
Source: Physics Letters B
Authors: A. Airapetian, N. Akopov, Z. Akopov, A. Andrus, E.C. Aschenauer, W. Augustyniak, R. Avakian, A. Avetissian, E. Avetissian, S. Belostotski, N. Bianchi, H.P. Blok, H. Böttcher, C. Bonomo, A. Borissov, A. Brüll, V. Bryzgalov, J. Burns, M. Capiluppi, G.P. Capitani, E. Cisbani, G. Ciullo, M. Contalbrigo, P.F. Dalpiaz, W. Deconinck, R. De Leo, M. Demey, L. De Nardo, E. De Sanctis, M. Diefenthaler, P. Di Nezza, J. Dreschler, M. Düren, M. Ehrenfried, A. Elalaoui-Moulay, G. Elbakian, F. Ellinghaus, U. Elschenbroich, R. Fabbri, A. Fantoni, L. Felawka, S. Frullani, A. Funel, D. Gabbert, G. Gapienko, V. Gapienko, F. Garibaldi, G. Gavrilov, V. Gharibyan, F. Giordano, S. Gliske, I.M. Gregor, H. Guler, C. Hadjidakis, D. Hasch, T. Hasegawa, W.H.A. Hesselink, G. Hill, A. Hillenbrand, M. Hoek, Y. Holler, B. Hommez, I. Hristova, G. Iarygin, Y. Imazu, A. Ivanilov, A. Izotov, H.E. Jackson, A. Jgoun, S. Joosten, R. Kaiser, T. Keri, E. Kinney, A. Kisselev, T. Kobayashi, M. Kopytin, V. Korotkov, V. Kozlov, P. Kravchenko, V.G. Krivokhijine, L. Lagamba, R. Lamb, L. Lapikás, I. Lehmann, P. Lenisa, P. Liebing, L.A. Linden-Levy, A. Lopez Ruiz, W. Lorenzon, S. Lu, X.-R. Lu, B.-Q. Ma, D. Mahon, B. Maiheu, N.C.R. Makins, L. Manfré, Y. Mao, B. Marianski, H. Marukyan, V. Mexner, C.A. Miller, Y. Miyachi, V. Muccifora, M. Murray, A. Mussgiller, A. Nagaitsev, E. Nappi, Y. Naryshkin, A. Nass, M. Negodaev, W.-D. Nowak, A. Osborne, L.L. Pappalardo, R. Perez-Benito, N. Pickert, M. Raithel, D. Reggiani, P.E. Reimer, A. Reischl, A.R. Reolon, C. Riedl, K. Rith, S.E. Rock, G. Rosner, A. Rostomyan, L. Rubacek, J. Rubin, D. Ryckbosch, Y. Salomatin, I. Sanjiev, A. Schäfer, G. Schnell, K.P. Schüler, B. Seitz, C. Shearer, T.-A. Shibata, V. Shutov, M. Stancari, M. Statera, E. Steffens, J.J.M. Steijger, H. Stenzel, J. Stewart, F. Stinzing, J. Streit, P. Tait, S. Taroian, B. Tchuiko, A. Terkulov, A. Trzcinski, M. Tytgat, A. Vandenbroucke, P.B. van der Nat, G. van der Steenhoven, Y. van Haarlem, C. van Hulse, M. Varanda, D. Veretennikov, V. Vikhrov, I. Vilardi, C. Vogel, S. Wang, S. Yaschenko, H. Ye, Y. Ye, Z. Ye, S. Yen, W. Yu, D. Zeiler, B. Zihlmann, P. Zupranski
Institutions: University of Michigan, A. Alikhanyan National Laboratory, University of Illinois Urbana-Champaign, Deutsches Elektronen-Synchrotron DESY, National Centre for Nuclear Research, Istituto Nazionale di Fisica Nucleare, Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati, Petersburg Nuclear Physics Institute, National Institute for Subatomic Physics, Vrije Universiteit Amsterdam, University of Ferrara, Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara, University of Glasgow, Thomas Jefferson National Accelerator Facility, Institute for High Energy Physics, Argonne National Laboratory, University of Colorado Boulder, Istituto Superiore di Sanità, Istituto Nazionale di Fisica Nucleare, Sezione di Roma I, Friedrich-Alexander-Universität Erlangen-Nürnberg, Joint Institute for Nuclear Research, Peking University, University of Regensburg, P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Ghent University
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid:
OpenAlex ID: W2291214719