Multiplicities of charged pions and kaons from semi-inclusive deep-inelastic scattering by the proton and the deuteron

A Airapetian,N Akopov,Z Akopov,E C Aschenauer,W Augustyniak,R Avakian,A Avetissian,E Avetisyan,S Belostotski,H P Blok,A Borissov,J Bowles,I Brodski,V Bryzgalov,Joseph A Burns,M Capiluppi,G P Capitani,E Cisbani,G Ciullo,M Contalbrigo,P F Dalpiaz,W Deconinck,R De Leo,L De Nardo,E De Sanctis,M Diefenthaler,P Di Nezza,M Duren,M Ehrenfried,G Elbakian,F Ellinghaus, R Fabbri,A Fantoni,L Felawka,S Frullani,D Gabbert,G Gapienko,V A Gapienko,F Garibaldi,G Gavrilov,V Gharibyan,F Giordano,S Gliske,M Golembiovskaya, C Hadjidakis,M Hartig,D Hasch,A Hillenbrand,M Hoek,Y Holler, I Hristova,Y Imazu,A A Ivanilov,A Izotov,H E Jackson,H S Jo,S Joosten,Ralf I Kaiser,G Karyan,T Keri, E Kinney,A Kisselev, N Kobayashi,V A Korotkov, V S Kozlov,P Kravchenko,V G Krivokhijine,L Lagamba,L Lapikas,I Lehmann,P Lenisa,A Lopez Ruiz,W Lorenzon,B Q Ma,D Mahon,B Maiheu,N C R Makins,S I Manaenkov,L Manfre,Y Mao,B Marianski,A Martinez De La Ossa,H Marukyan,C A Miller,Y Miyachi,A Movsisyan,Michael Murray,Andreas Mussgiller,E Nappi,Y Naryshkin,A Nass,M Negodaev,W D Nowak,L L Pappalardo,R Perezbenito,A Petrosyan,M Raithel,P Reimer,A R Reolon

PHYSICAL REVIEW D（2013）

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摘要

Multiplicities in semi-inclusive deep-inelastic scattering are presented for each charge state of pi(+/-) and K-+/- mesons. The data were collected by the HERMES experiment at the HERA storage ring using 27.6 GeV electron and positron beams incident on a hydrogen or deuterium gas target. The results are presented as a function of the kinematic quantities x(B), Q(2), z, and P-h perpendicular to. They represent a unique data set for identified hadrons that will significantly enhance our understanding of the fragmentation of quarks into final-state hadrons in deep-inelastic scattering. DOI: 10.1103/PhysRevD.87.074029

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