Multiplicities of positive and negative pions, kaons and unidentified hadrons from deep-inelastic scattering of muons off a liquid hydrogen target
The multiplicities of positive and negative pions, kaons and unidentified hadrons produced in deep-inelastic scattering are measured in bins of the Bjorken scaling variable $x$, the relative virtual-photon energy $y$ and the fraction of the virtual-photon energy transferred to the final-state hadron...
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Format | Journal Article |
Language | English |
Published |
15.10.2024
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Subjects | |
Online Access | Get full text |
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Summary: | The multiplicities of positive and negative pions, kaons and unidentified
hadrons produced in deep-inelastic scattering are measured in bins of the
Bjorken scaling variable $x$, the relative virtual-photon energy $y$ and the
fraction of the virtual-photon energy transferred to the final-state hadron
$z$. Data were obtained by the COMPASS Collaboration using a 160 GeV muon beam
of both electric charges and a liquid hydrogen target. These measurements cover
the kinematic domain with photon virtuality $Q^2 > 1$ (GeV/$c)^2$, $0.004 < x <
0.4$, $0.1 < y < 0.7$ and $0.2 < z < 0.85$, in accordance with the kinematic
domain used in earlier published COMPASS multiplicity measurements with an
isoscalar target. The calculation of radiative corrections was improved by
using the Monte Carlo generator DJANGOH, which results in up to 12\% larger
corrections in the low-$x$ region. |
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Bibliography: | CERN-EP-2024-270 |
DOI: | 10.48550/arxiv.2410.12005 |