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arXiv · 1312.7028

Reevaluation of the parton distribution of strange quarks in the nucleon

The HERMES Collaboration·A. Airapetian·N. Akopov·Z. Akopov·E. C. Aschenauer·W. Augustyniak·A. Avetissian·E. Avetisyan·S. Belostotski·H. P. Blok·A. Borissov·V. Bryzgalov·J. Burns·M. Capiluppi·G. P. Capitani·E. Cisbani·G. Ciullo·M. Contalbrigo·P. F. Dalpiaz·W. Deconinck·R. De Leo·E. De Sanctis·M. Diefenthaler·P. Di Nezza·M. Düren·M. Ehrenfried·G. Elbakian·F. Ellinghaus·E. Etzelmüller·L. Felawka·S. Frullani·D. Gabbert·G. Gapienko·V. Gapienko·J. Garay García·F. Garibaldi·G. Gavrilov·V. Gharibyan·F. Giordano·S. Gliske·M. Hartig·D. Hasch·M. Hoek·Y. Holler·I. Hristova·H. E. Jackson·S. Joosten·R. Kaiser·G. Karyan·T. Keri·E. Kinney·A. Kisselev·V. Korotkov·V. Kozlov·P. Kravchenko·V. G. Krivokhijine·L. Lagamba·L. Lapikás·I. Lehmann·P. Lenisa·W. Lorenzon·B. -Q. Ma·D. Mahon·S. I. Manaenkov·Y. Mao·B. Marianski·H. Marukyan·Y. Miyachi·A. Movsisyan·V. Muccifora·M. Murray·A. Mussgiller·Y. Naryshkin·A. Nass·M. Negodaev·W. -D. Nowak·L. L. Pappalardo·R. Perez-Benito·A. Petrosyan·P. E. Reimer·A. R. Reolon·C. Riedl·K. Rith·G. Rosner·A. Rostomyan·J. Rubin·D. Ryckbosch·Y. Salomatin·A. Schäfer·G. Schnell·B. Seitz·T. -A. Shibata·M. Stahl·M. Statera·E. Steffens·J. J. M. Steijger·F. Stinzing·S. Taroian·A. Terkulov·R. Truty
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Abstract

An earlier extraction from the HERMES experiment of the polarization-averaged parton distribution of strange quarks in the nucleon has been reevaluated using final data on the multiplicities of charged kaons in semi-inclusive deep-inelastic scattering obtained with a kinematically more comprehensive method of correcting for experimental effects. General features of the distribution are confirmed, but the rise at low x is less pronounced than previously reported.

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The HERMES Collaboration, A. Airapetian, N. Akopov, Z. Akopov, E. C. Aschenauer, W. Augustyniak, A. Avetissian, E. Avetisyan, S. Belostotski, H. P. Blok, A. Borissov, V. Bryzgalov, J. Burns, M. Capiluppi, G. P. Capitani, E. Cisbani, G. Ciullo, M. Contalbrigo, P. F. Dalpiaz, W. Deconinck, R. De Leo, E. De Sanctis, M. Diefenthaler, P. Di Nezza, M. Düren, M. Ehrenfried, G. Elbakian, F. Ellinghaus, E. Etzelmüller, L. Felawka, S. Frullani, D. Gabbert, G. Gapienko, V. Gapienko, J. Garay García, F. Garibaldi, G. Gavrilov, V. Gharibyan, F. Giordano, S. Gliske, M. Hartig, D. Hasch, M. Hoek, Y. Holler, I. Hristova, H. E. Jackson, S. Joosten, R. Kaiser, G. Karyan, T. Keri, E. Kinney, A. Kisselev, V. Korotkov, V. Kozlov, P. Kravchenko, V. G. Krivokhijine, L. Lagamba, L. Lapikás, I. Lehmann, P. Lenisa, W. Lorenzon, B. -Q. Ma, D. Mahon, S. I. Manaenkov, Y. Mao, B. Marianski, H. Marukyan, Y. Miyachi, A. Movsisyan, V. Muccifora, M. Murray, A. Mussgiller, Y. Naryshkin, A. Nass, M. Negodaev, W. -D. Nowak, L. L. Pappalardo, R. Perez-Benito, A. Petrosyan, P. E. Reimer, A. R. Reolon, C. Riedl, K. Rith, G. Rosner, A. Rostomyan, J. Rubin, D. Ryckbosch, Y. Salomatin, A. Schäfer, G. Schnell, B. Seitz, T. -A. Shibata, M. Stahl, M. Statera, E. Steffens, J. J. M. Steijger, F. Stinzing, S. Taroian, A. Terkulov, R. Truty. 2013-12-25. Reevaluation of the parton distribution of strange quarks in the nucleon. https://doi.org/10.1103/physrevd.89.097101

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