Precise measurements of charged-kaon multiplicities in deep inelastic scattering were performed. The results are presented in three-dimensional bins of the Bjorken scaling variable x, the relative virtual-photon energy y, and the fraction z of the virtual-photon energy carried by the produced hadron. The data were obtained by the COMPASS Collaboration by scattering 160 GeV muons off an isoscalar 6LiD target. They cover the kinematic domain View the MathML source in the photon virtuality, 0.004<x<0.4, 0.1<y<0.7, 0.20<z<0.85, and W>5 GeV/c2 in the invariant mass of the hadronic system. The results from the sum of the z -integrated K+ and K− multiplicities at high x point to a value of the non-strange quark fragmentation function larger than obtained by the earlier DSS fit.

Multiplicities of charged kaons from deep-inelastic muon scattering off an isoscalar target

BIRSA, RENATO;BRADAMANTE, FRANCO;BRESSAN, Andrea;CHATTERJEE, CHANDRADOY;Dalla Torre, S.;DASGUPTA, SHUDDHA SHANKAR;DASGUPTA, SHUDDHA SHANKAR;DUIC, VENICIO;LEVORATO, STEFANO;Makke, Nour;MARTIN, ANNA;MATOUSEK, JAN;SBRIZZAI, GIULIO;SCHIAVON, PAOLO;SOZZI, FEDERICA;SZABELSKI, ADAM;TAKEKAWA, STEFANO;TESSARO, SUSANNA;Tessarotto, F.;
2017

Abstract

Precise measurements of charged-kaon multiplicities in deep inelastic scattering were performed. The results are presented in three-dimensional bins of the Bjorken scaling variable x, the relative virtual-photon energy y, and the fraction z of the virtual-photon energy carried by the produced hadron. The data were obtained by the COMPASS Collaboration by scattering 160 GeV muons off an isoscalar 6LiD target. They cover the kinematic domain View the MathML source in the photon virtuality, 0.0045 GeV/c2 in the invariant mass of the hadronic system. The results from the sum of the z -integrated K+ and K− multiplicities at high x point to a value of the non-strange quark fragmentation function larger than obtained by the earlier DSS fit.
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http://www.sciencedirect.com/science/article/pii/S0370269317300710
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11368/2893727
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