Journal article

Measurement of parton distributions of strange quarks in the nucleon from charged-kaon production in deep-inelastic scattering on the deuteron


Authors listAirapetian, 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.; Boettcher, H.; Bonomo, C.; Borissov, A.; Bruell, 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.; Dueren, 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.; Gregor, I. M.; Guler, H.; Hadjidakis, C.; 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.; Joosten, S.; 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.; Lapikas, L.; Lehmann, I.; Lenisa, P.; Liebing, P.; Linden-Levy, L. A.; Ruiz, A. Lopez; Lorenzon, W.; Lu, S.; Lu, X-R.; Ma, B. -Q.; Mahon, D.; Maiheu, B.; Makins, N. C. R.; Manfre, L.; 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.; Schaefer, A.; Schnell, G.; Schueler, K. P.; Seitz, B.; Shearer, C.; Shibata, T. -A.; Shutov, V.; Stancari, M.; Statera, M.; Steffens, 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.

Publication year2008

Pages446-450

JournalPhysics Letters B

Volume number666

Issue number5

ISSN0370-2693

eISSN1873-2445

Open access statusHybrid

DOI Linkhttps://doi.org/10.1016/j.physletb.2008.07.090

PublisherElsevier


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 a and a quarks. In the region of measurement 0.02 < x < 0.6 and Q(2) > 1.0 GeV2, the helicity distribution is zero within experimental uncertainties. (C) 2008 Elsevier B.V. All rights reserved.


Citation Styles

Harvard Citation styleAirapetian, A., Akopov, N., Akopov, Z., Andrus, A., Aschenauer, E., Augustyniak, W., et al. (2008) Measurement of parton distributions of strange quarks in the nucleon from charged-kaon production in deep-inelastic scattering on the deuteron, Physics Letters B, 666(5), pp. 446-450. https://doi.org/10.1016/j.physletb.2008.07.090

APA Citation styleAirapetian, A., Akopov, N., Akopov, Z., Andrus, A., Aschenauer, E., Augustyniak, W., Avakian, R., Avetissian, A., Avetissian, E., Belostotski, S., Bianchi, N., Blok, H., Boettcher, H., Bonomo, C., Borissov, A., Bruell, A., Bryzgalov, V., Burns, J., Capiluppi, M., ...Zupranski, P. (2008). Measurement of parton distributions of strange quarks in the nucleon from charged-kaon production in deep-inelastic scattering on the deuteron. Physics Letters B. 666(5), 446-450. https://doi.org/10.1016/j.physletb.2008.07.090



Keywords


LEADING-ORDERNEUTRINOOPPOSITE-SIGN DIMUONSORDER QCD ANALYSISPROTON

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