Multiplicities of charged pions and charged hadrons from deep-inelastic scattering of muons off an isoscalar target

C. Adolph (1) , V. Andrieux , Y. Bedfer (2) , M. Boer (2) , E. Burtin (2) , Q. Curiel (2) , N. d'Hose (2) , A. Ferrero (2) , E. Fuchey (2) , F. Kunne (2) , M. Levillain (2) , A. Magnon (2) , C. Marchand (2) , D. Neyret (2) , S. Platchkov (2) , F Thibault (2) , Et Al.

1 Physikalisches Institut [Erlangen]
2 DPHN - Département de Physique Nucléaire (ex SPhN)

Multiplicities of charged pions and charged hadrons produced in deep-inelastic scattering were measured in three-dimensional bins of the Bjorken scaling variable x, the relative virtual-photon energy y and the relative hadron energy z. Data were obtained by the COMPASS Collaboration using a 160 GeV muon beam and an isoscalar target ((LiD)-Li-6). They cover the kinematic domain in the photon virtuality Q(2) > 1 (GeV/c) 2, 0.004 < x < 0.4, 0.2 < z < 0.85 and 0.1 < y < 0.7. In addition, a leading-order pQCD analysis was performed using the pion multiplicity results to extract quark fragmentation functions.

Domaines: Physique Nucléaire Expérimentale [nucl-ex]

C. Adolph, V. Andrieux, Y. Bedfer, M. Boer, E. Burtin, et al.. Multiplicities of charged pions and charged hadrons from deep-inelastic scattering of muons off an isoscalar target. Physics Letters B, 2017, 764, pp.1-10. ⟨cea-01511179⟩